Please open the attachments found in the attachments field below labeled as PCN_#_Affected_CPN.

Product Change Notification - JAON-22RLPV443 Date: 30 Oct 2015 Product Category: Notification subject: Notification text: Final Notice: Qualification of CRM-1800 Ag or CRM-ZA250A Ag die attach material for Micrel products in 3/5L TO-247, 3/5L TO-220, 5L TO-252, 3/6/7L TO-263, and 3/5/7L SPAK packages assembled at GTBF. PCN Status: Final notification Microchip Parts Affected: Please open the attachments found in the attachments field below labeled as PCN_#_Affected_CPN. NOTE: For your convenience Microchip includes identical files in two formats (.pdf and.xls). Description of Change: Qualification of CRM-1800 Ag or CRM-ZA250A Ag Epoxy die attach material for Micrel products available in 3/5L TO-247, 3/5L TO-220, 5L TO-252, 3/6/7L TO-263, and 3/5/7L SPAK packages assembled at GTBF assembly site. Pre Change: Soft solder die attach material Post Change: CRM-1800 Ag or CRM-ZA205A-Ag epoxy die attach material Impacts to Data Sheet: None Reason for Change: Expiration of the RoHS exemption. Change Implementation Status: In Progress Estimated First Ship Date: February 1, 2016 (date code: 1605) NOTE: Please be advised that after the estimated first ship date customers may receive-pre or post

change product until July 21, 2016. Summary Table: November 2015 December 2015 January 2016 February 2016 Qual Report Availability X Final PCN Issue Date X Implementation Date X Markings to Distinguish Revised from Unrevised Devices: Traceability code Revision History: October 30, 2015: Issued final notification. Attachment(s): Frequently Asked Questions.pdf Letter to customers - Micrel PCN Integration.pdf PCN JAON-22RLPV443 Qual Report.pdf PCN JAON-22RLPV443 Affected CPN.pdf PCN JAON-22RLPV443 Affected CPN.xls Please contact your local Microchip sales office with questions or concerns regarding this notification. Terms and Conditions: If you wish to change your product/process change notification (PCN) profile please log on to our website at http://www.microchip.com/pcn sign into mymicrochip to open the mymicrochip home page, then select a profile option from the left navigation bar. To opt out of future offer or information emails (other than product change notification emails), click here to go to microchipdirect and login, then click on the "My account" link, click on "Update profile" and un-check the box that states "Future offers or information about Microchip's products or services."

JAON-22RLPV443 - Final Notice: Qualification of CRM-1800 Ag or CRM-ZA250A Ag die attach material for Micrel products in 3/5L TO-247, 3/5L TO-220, 5L TO-252, 3/6/7L TO-263 and 3/5/7L SPAK packages assembled at GTBF Affected Catalog Part Numbers (CPN) PCN_JAON-22RLPV443 Catalog Part Number (CPN) LM2575-12WT LM2575-12WU LM2575-12WU-TR LM2575-12WUI05 LM2575-3.3WT LM2575-3.3WU LM2575-3.3WU-TR LM2575-5.0WT LM2575-5.0WT-L3 LM2575-5.0WU LM2575-5.0WU-TR LM2575WT LM2575WU LM2575WU-TR LM2576-12WT LM2576-12WU LM2576-12WU-TR LM2576-3.3WT LM2576-3.3WU LM2576-3.3WU-TR LM2576-5.0WT LM2576-5.0WU LM2576-5.0WU-TR LM2576WT LM2576WT-L3 LM2576WU LM2576WU-TR MIC2171WT MIC2171WU MIC2171WU-TR MIC29151-12WT MIC29151-12WU MIC29151-12WU-TR MIC29151-3.3WT MIC29151-3.3WU MIC29151-3.3WU-TR MIC29151-5.0WT MIC29151-5.0WU MIC29151-5.0WU-TR MIC29152WD-TR MIC29152WT MIC29152WT-L2 MIC29152WT-L3 MIC29152WU Package Type Page 1 of 8

JAON-22RLPV443 - Final Notice: Qualification of CRM-1800 Ag or CRM-ZA250A Ag die attach material for Micrel products in 3/5L TO-247, 3/5L TO-220, 5L TO-252, 3/6/7L TO-263 and 3/5/7L SPAK packages assembled at GTBF Affected Catalog Part Numbers (CPN) I PCN_JAON-22RLPV443 Catalog Part Number (CPN) Package Type MIC29152WU-TR MIC29152WUL01 MIC29201-12WT MIC29201-12WU MIC29201-12WU-TR MIC29201-3.3WT MIC29201-3.3WU MIC29201-3.3WU-TR MIC29201-4.8WT MIC29201-4.8WU MIC29201-4.8WU-TR MIC29201-5.0WT MIC29201-5.0WU MIC29201-5.0WU-TR MIC29202WT MIC29202WU MIC29202WU-TR MIC29202WUL01 MIC29203WU MIC29203WU-TR MIC29301-12WT MIC29301-12WU MIC29301-12WU-TR MIC29301-3.3WT MIC29301-3.3WU MIC29301-3.3WU-TR MIC29301-5.0WT MIC29301-5.0WT-L2 MIC29301-5.0WU MIC29301-5.0WU-TR MIC29301WT MIC29302AWD MIC29302AWD-TR MIC29302AWU MIC29302AWU-TR MIC29302AWUL01 MIC29302HWU MIC29302HWU-TR MIC29302WT MIC29302WT-L3 MIC29302WTL01 MIC29302WU MIC29302WU-TR MIC29302WUL01 Page 2 of 8

JAON-22RLPV443 - Final Notice: Qualification of CRM-1800 Ag or CRM-ZA250A Ag die attach material for Micrel products in 3/5L TO-247, 3/5L TO-220, 5L TO-252, 3/6/7L TO-263 and 3/5/7L SPAK packages assembled at GTBF Affected Catalog Part Numbers (CPN) I PCN_JAON-22RLPV443 Catalog Part Number (CPN) Package Type MIC29303WT MIC29303WU MIC29303WU-TR MIC29311-5.1WT MIC29312AWU MIC29312AWU-TR MIC29312WT MIC29312WU MIC29312WU-TR MIC29371-12WT MIC29371-12WU MIC29371-12WU-TR MIC29371-3.3WT MIC29371-3.3WU MIC29371-3.3WU-TR MIC29371-5.0WT MIC29371-5.0WT-L3 MIC29371-5.0WU MIC29371-5.0WU-TR MIC29371-5.0WUL01 MIC29372WT MIC29372WU MIC29372WU-TR MIC2941AWT MIC2941AWT-L3 MIC2941AWU MIC2941AWU-TR MIC2941AWUL01 MIC29501-3.3WT MIC29501-3.3WU MIC29501-3.3WU-TR MIC29501-5.0WT MIC29501-5.0WU MIC29501-5.0WU-TR MIC29502WT MIC29502WT-L2 MIC29502WT-L3 MIC29502WTL01 MIC29502WU MIC29502WU-TR MIC29502WUL01 MIC29503WT MIC29503WU MIC29503WU-TR Page 3 of 8

JAON-22RLPV443 - Final Notice: Qualification of CRM-1800 Ag or CRM-ZA250A Ag die attach material for Micrel products in 3/5L TO-247, 3/5L TO-220, 5L TO-252, 3/6/7L TO-263 and 3/5/7L SPAK packages assembled at GTBF Affected Catalog Part Numbers (CPN) I PCN_JAON-22RLPV443 Catalog Part Number (CPN) Package Type MIC29512WT MIC29712WT MIC29712WT-L2 MIC29751-3.3WWT TO-247-05L MIC29751-5.0WWT TO-247-05L MIC29752WWT TO-247-05L MIC35152WD MIC35152WD-TR MIC35302WD MIC35302WD-TR MIC37102WR MIC37102WR-TR MIC37150-1.5WR MIC37150-1.5WR-TR MIC37150-1.65WR MIC37150-1.65WR-TR MIC37150-1.8WR MIC37150-1.8WR-TR MIC37150-2.5WR MIC37150-2.5WR-TR MIC37150-3.3WR MIC37150-3.3WR-TR MIC37151-1.5WR MIC37151-1.5WR-TR MIC37151-1.65WR MIC37151-1.65WR-TR MIC37151-1.8WR MIC37151-1.8WR-TR MIC37151-2.5WR MIC37151-2.5WR-TR MIC37151-3.3WR MIC37151-3.3WR-TR MIC37152WR MIC37152WR-TR MIC37252WR MIC37252WR-TR MIC37252WU MIC37252WU-TR MIC37300-1.5WR MIC37300-1.5WR-TR MIC37300-1.65WR MIC37300-1.65WR-TR MIC37300-1.8WR MIC37300-1.8WR-TR Page 4 of 8

JAON-22RLPV443 - Final Notice: Qualification of CRM-1800 Ag or CRM-ZA250A Ag die attach material for Micrel products in 3/5L TO-247, 3/5L TO-220, 5L TO-252, 3/6/7L TO-263 and 3/5/7L SPAK packages assembled at GTBF Affected Catalog Part Numbers (CPN) I PCN_JAON-22RLPV443 Catalog Part Number (CPN) Package Type MIC37300-2.5WR MIC37300-2.5WR-TR MIC37300-3.3WR MIC37300-3.3WR-TR MIC37301-1.5WR MIC37301-1.5WR-TR MIC37301-1.8WR MIC37301-1.8WR-TR MIC37301-2.5WR MIC37301-2.5WR-TR MIC37301-3.3WR MIC37301-3.3WR-TR MIC37302WR MIC37302WR-TR MIC37302WU MIC37302WU-TR MIC37302WUL01 MIC37501-1.5WR MIC37501-1.5WR-TR MIC37501-1.65WR MIC37501-1.65WR-TR MIC37501-1.8WR MIC37501-1.8WR-TR MIC37501-2.5WR MIC37501-2.5WR-TR MIC37501-3.3WR MIC37501-3.3WR-TR MIC37502WR MIC37502WR-TR MIC37502WU MIC37502WU-TR MIC37502WUL01 MIC39151-1.65WT MIC39151-1.65WU MIC39151-1.65WU-TR MIC39151-1.8WT MIC39151-1.8WU MIC39151-1.8WU-TR MIC39151-1.8WUL01 MIC39151-2.5WT MIC39151-2.5WU MIC39151-2.5WU-TR MIC39152WD MIC39152WD-TR Page 5 of 8

JAON-22RLPV443 - Final Notice: Qualification of CRM-1800 Ag or CRM-ZA250A Ag die attach material for Micrel products in 3/5L TO-247, 3/5L TO-220, 5L TO-252, 3/6/7L TO-263 and 3/5/7L SPAK packages assembled at GTBF Affected Catalog Part Numbers (CPN) I PCN_JAON-22RLPV443 Catalog Part Number (CPN) Package Type MIC39152WU MIC39152WU-TR MIC39301-1.8WT MIC39301-1.8WU MIC39301-1.8WU-TR MIC39301-2.5WT MIC39301-2.5WU MIC39301-2.5WU-TR MIC39302WU MIC39302WU-TR MIC39501-1.8WT MIC39501-1.8WU MIC39501-1.8WU-TR MIC39501-2.5WT MIC39501-2.5WU MIC39501-2.5WU-TR MIC4575-3.3WT MIC4575-3.3WU MIC4575-3.3WU-TR MIC4575-5.0WT MIC4575-5.0WU MIC4575-5.0WU-TR MIC4575WT MIC4575WU MIC4575WU-TR MIC4576-3.3WT MIC4576-3.3WU MIC4576-3.3WU-TR MIC4576-5.0WT MIC4576-5.0WU MIC4576-5.0WU-TR MIC4576WT MIC4576WT-L2 MIC4576WT-L3 MIC4576WU MIC4576WU-TR MIC4685WR MIC4685WR-TR MIC47150WD MIC47150WD-TR MIC47300WD MIC47300WD-TR MIC49150-0.9WR MIC49150-0.9WR-TR Page 6 of 8

JAON-22RLPV443 - Final Notice: Qualification of CRM-1800 Ag or CRM-ZA250A Ag die attach material for Micrel products in 3/5L TO-247, 3/5L TO-220, 5L TO-252, 3/6/7L TO-263 and 3/5/7L SPAK packages assembled at GTBF Affected Catalog Part Numbers (CPN) I PCN_JAON-22RLPV443 Catalog Part Number (CPN) Package Type MIC49150-1.2WR MIC49150-1.2WR-TR MIC49150-1.5WR MIC49150-1.5WR-TR MIC49150-1.8WR MIC49150-1.8WR-TR MIC49150WR MIC49150WR-TR MIC49200-1.0WR MIC49200-1.0WR-TR MIC49200-1.8WR MIC49200-1.8WR-TR MIC49200WR MIC49200WR-TR MIC49300-0.9WR MIC49300-0.9WR-TR MIC49300-1.2WR MIC49300-1.2WR-TR MIC49300-1.5WR MIC49300-1.5WR-TR MIC49300-1.8WR MIC49300-1.8WR-TR MIC49300WR MIC49300WR-TR MIC49500-0.9WR MIC49500-0.9WR-TR MIC49500-1.2WR MIC49500-1.2WR-TR MIC49500WR MIC49500WR-TR MIC59300-1.2WU MIC59300-1.2WU-TR MIC59300WU MIC59300WU-TR MIC69301-1.2WR MIC69301-1.2WR-TR MIC69301-1.2WU MIC69301-1.2WU-TR MIC69302WR MIC69302WR-TR MIC69302WR-7 MIC69302WR-7-TR MIC69302WU MIC69302WU-TR Page 7 of 8

MICROCHIP QUALIFICATION REPORT RELIABILITY LABORATORY PCN #: JAON-22RLPV443 Date July 28, 2015 Qualification of CRM-1800 Ag or CRM-ZA250A Ag Epoxy die attach material for Micrel products available in 3/5L TO-247, 3/5L TO-220, 5L TO-252, 3/6/7L TO-263, and 3/5/7L SPAK packages assembled at GTBF assembly site.

QUALIFICATION MATERIALS ASSEMBLY PACKAGE TYPE MSL MOLD COMPOUND DIE LOT NO. DATE CODE FAB PROCESS MIC29302 WT TO220-5 n/a G600 29300-AC DA23743MQC BCDM MIC49300 WR SPAK-5 PREC.L3 CEL8240HF 49300A-ADJ CA48977MQB 1446P BCD2 MIC29302 WU TO263-5 PREC.L3 G600 29300-AC DA23717MQC BCDM MIC35302 WD TO252-5 PREC.L3 G600 37300A-ADJ DA03143MQC 1447P BCDM MIC29752 WWT TO247-5 PREC.L3 G600 29750-STD DA13964MQF 1449P BCDM

QUALIFICATION RESULTS TEST DESCRIPTION METHOD/ CONDITIONS LOT NO. DATE CODE 168 HR Rej/pass 1000 HR Rej/pass COMMENTS HTOL DA23743MQC High Temperature Operating Life Test JESD-22, Method A108 TA= +125 C, CA48977MQB DA23717MQC 1446P With Level 3 Preconditioning VCC = +26V DA03143MQC DA13964MQF 1447P 1449P TEST DESCRIPTION METHOD/ CONDITIONS LOT NO. DATE CODE Rej/ss DA23743MQC 5 Pre Conditioning Flow CA48977MQB 1446P 2 With Level 3 Preconditioning JESD22-A113 DA23717MQC DA03143MQC 1447P 0/350 2 DA13964MQF 1449P 0/427 TEST DESCRIPTION METHOD/ CONDITIONS LOT NO. DATE CODE 96 HR Rej/pass COMMENTS DA23743MQC PRESSURE POT JESD22-A102 CA48977MQB 1446P With Level 3 Preconditioning Ta=+121 C/100%RH 15 PSIG DA23717MQC DA03143MQC 1447P DA13964MQF 1449P TEST DESCRIPTION METHOD/ CONDITIONS LOT NO. DATE CODE 96 HR Rej/pass 192 HR Rej/pass HAST With Level 3 Preconditioning JESD22-A110 (BIASED) Ta = +131 C/85%RH DA23743MQC CA48977MQB DA23717MQC 1446P Tpeak + 260 C 3x Reflow JESD22-A118 (UNBIASED) DA03143MQC DA13964MQF 1447P 1449P

TEST DESCRIPTION METHOD/ CONDITIONS LOT NO. DATE CODE 500 cyc Rej/pass DA23743MQC TEMP CYCLE With Level 3 Pre-conditioning JESD22-A104 Ta = -65 C/+150 C CA48977MQB 1446P DA23717MQC DA03143MQC 1447P DA13964MQF 1449P TEST DESCRIPTION METHOD/ CONDITIONS LOT NO. DATE CODE 1000 HR Rej/pass 2000 HR Rej/pass COMMENTS DA23743MQC 0/76 0/76 HTSL CA48977MQB 1446P 0/76 0/76 High Temperature JESD22-A103 Storage Life DA23717MQC 0/76 0/76 Ta = +150 C With Level 3 DA03143MQC 1447P 0/76 0/76 Pre-conditioning DA13964MQF 1449P 0/76 0/76 TEST DESCRIPTION METHOD/ CONDITIONS LOT NO. DATE CODE STRESS RESULT Rej/pass COMMENTS DA23743MQC I/O LU O/V LU 0/6 CA48977MQB 1446P I/O LU O/V LU 0/6 Latch-up JESD-78 Ta = +25 C DA23717MQC I/O LU O/V LU 0/6 DA03143MQC 1447P I/O LU O/V LU 0/6 DA13964MQF 1449P I/O LU O/V LU 0/6 FLAMMABILITY UL-94V-0 Certified All mold compounds used by Micrel meet this standard. See the UL website on-line list of material flammability certifications. Micrel requires a Certificate of Compliance from the assembly house and we verify the certifications on the web.

MICROCHIP SUBJECT: Integration of the Micrel PCN system with the Microchip PCN system Dear Valued Customer: Please be advised that the Micrel PCN system will integrate with the Microchip PCN system on November 1, 2015. As part of the Micrel integration with Microchip, Micrel is integrating the current Product/Process Change Notification (PCN) and End of Life (EOL) Notification system to the Microchip notification system as of November 1, 2015. After November 1, 2015 this change will require that all PCN users who wish to receive PCN via email to register on microchip.com. Please complete PCN email registration prior to December 1, 2015 if you would like to continue to receive PCN via email. Users who do not register will not receive PCN via email but may view notifications by visiting the Microchip Product Change Notification web page (linked below). To register please open the Product Change Notification page to begin the registration process. An FAQ that includes registration details is available on the PCN page to help with the registration process or contact your local Microchip sales office for assistance Note: This change does not affect Micrel/Microchip products or processes. This notice is for your information (FYI) only regarding the customer notification service provided by Micrel/Microchip. Scope: All Micrel commercial and automotive customers. Reason for Change: To Support the Micrel integration with Microchip. Integration Date: November 1, 2015 Registration Start Date: November 2, 2015 Last Date Microchip will issue PCN to Customers without Registration: December 1, 2015. Microchip Technology Incorporated 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Main Office 480-792-7200 Fax 480-792-4005

A reminder notification regarding this topic will be issued on November 1, 2015. If you have any questions, please contact your local sales office. Microchip Technology, Inc. 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Main Office 480-786-7200 Fax 480-917-4358

Frequently Asked Questions (FAQ) Contacting Microchip: Microchip has Sales Offices Worldwide. To find your local office, please visit our website at: Microchip Sales and Distribution. Also note that your current Micrel contacts will be moving to the Microchip email system over the coming weeks therefore their email address will change to first name.last name@microchip.com Open Direct Orders with Micrel: Open Orders will be transferred to the Microchip Systems on or about 11/1/2015. Customers will be contacted by local sales offices prior to the transfer to ensure smooth transition. Part Numbers: The Part Numbering system for Micrel products will be changing. All spaces and underscores ("_") in existing part numbers will be replaced with dashes ("-"). MOQ: Orders must be placed in multiples of tray, tube, bag, or reel size. Additionally, there may be a Purchase Order/Order Line minimum. Existing Micrel orders being converted to Microchip orders will be subject to the base quantity multiples requirement and may have a slightly different quantity. Order Acknowledgement: Microchip provides Acknowledgements for all new Direct orders entered and for each change made to an existing Direct order. This document is typically provided via email. Cancel/Reschedule: The table below provides information on the Microchip Cancel/Reschedule policy: CRD Pull In CRD Push Catalog PN Restriction Cancellation CRD Push Out Allowed Out Allowed Standard >30 days PRD >30 days PRD Y Y Custom, Non Standard >90 days PRD >90 days PRD Y Y QS9000 >90 days PRD >90 days PRD Y Y NCNR N/A N/A Y N *CRD - Customer Requested Delivery Date *PRD - Microchip Anticipated Delivery Date ASN: When placing a Direct Order with Microchip, customers can elect to receive an Advance Ship Notice. This document advises that your order is prepared to ship to the location identified on your Purchase Order. If you wish to receive this notification, please contact your local Microchip Sales Office.

Managing Product Requirements During the Transition: The Micrel order entry and shipments systems will transition to Microchip systems on or about 11/1/2015. Until that time, please continue to manage your product requirements as you do today. Microchip will have a 'Quiet Period' that will occur for several days prior to the final integration so that we can import all existing Purchase Orders into our system. During that time we will not Accept New Orders, Modify/Cancel Existing Orders, or Ship Product. Please contact your local sales office with any questions or concerns. Shipping and Invoicing after the transition: After November 1, 2015, all products will be shipped and invoiced from Microchip. Please alert your Receiving and Accounts Payable departments of this change. If a new PO must be issued to Microchip (and the corresponding PO to Micrel cancelled) this must be done prior to prior to the 'Quiet Period' to ensure a smooth transition. Please contact your local sales representatives for assistance. Vendor/Supplier Code: If your system requires a new code to support order placement to Microchip and receive in Microchip shipments, please arrange as needed. Shipping Labels, Boxes and Packing Methods: Labels, Boxes and Packing methods will be standardized to Microchip's current processes. Lots, Trace Codes, Date Codes, Part Aging, and Shelf Life: Standard Microchip methods for combining production lots, trace codes and date codes into tubes, trays, and reel media will apply as well as standard Microchip Part Aging and Shelf Life Policies. Microchip quality documents and policies including part aging policy are found on our website. Quality Documents and Policies Payment Terms: Standard payment terms are N30 Terms & Conditions: Microchip Sales are subject to the company's Terms and Conditions ("T&C"). Microchip T&C does differ slightly depending on whether the customer is in the European Union or elsewhere in the world and whether they are purchasing Direct or through microchipdirect. Microchip Terms and Conditions are located on our website. Microchip Terms and Conditions of Sale PCN: Standard Microchip methods for notifying customers about process or product changes and end of life products (EOL) will apply. We expect this service to be available to Micrel customers in early 2016. Once available, customers who wish to receive PCN via email are expected to register for service on our PCN web page. The Micrel PCN system will continue to be used until the Microchip system supports Micrel products but will be terminated after the transition to the Microchip systems is complete. Here is a link to the Microchip PCN web site: Microchip PCN Website

Micrel Integration PCN's: All PCN's related to the integration can be found at this website: Product Change Notifications. Please check back often to ensure you are informed of all currently planned and future changes.