AP3427M

AP3427M

Document overview

• Manufacturer or author: Diodes Incorporated
• PDF pages: 9

Technical content

Features

 High Efficiency Buck Power Converter  Output Current: 1.0A/1.0A  Low RDS(ON) Internal Switches: 200mΩ (VIN=5V)  Adjustable Output Voltages from 0.6V to 0.9× VIN  Wide Operating Voltage Range: 2.5V to 5.5V  Built-In Power Switches for Synchronous Rectification with High Efficiency  Feedback Voltage: 600mV  1.5MHz Constant Frequency Operation  Thermal Shutdown Protection  Low Drop-Out Operation at 100% Duty Cycle  Input Over Voltage Protection  No Schottky Diode Required  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3)  For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/ Pin Assignments

Applications

 Post DC-DC Voltage Regulation  PDA and Notebook Computer Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen - and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. U-DFN3030-10 Top View NOT RECOMMENDED FOR NEW DESIGN CONTACT US

Document number: DS39604 Rev. 2 - 3 2 of 9 www.diodes.com April 2020 © Diodes Incorporated AP3427M NEW PRODUCT Typical Applications Circuit Pin Descriptions Pin Number Pin Name Function

1 EN1 Enable signal input of channel 1, active high

2 FB1 Feedback voltage of channel 1

3 VIN2 Power supply input of channel 2

4, 9, Exposed Pad GND GND. It should be connected to system ground

5 LX2 Connected from channel 2’s Power MOSFET to inductor

6 EN2 Enable signal input of channel 2, active high

7 FB2 Feedback voltage of channel 2

8 VIN1 Power supply input of channel 1

10 LX1 Connected from channel 1’s Power MOSFET to inductor

Document number: DS39604 Rev. 2 - 3 3 of 9 www.diodes.com April 2020 © Diodes Incorporated AP3427M NEW PRODUCT Functional Block Diagram Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) (Note 4) Parameter Symbol Value Unit Supply Input Voltage for the MOSFET Switch VIN1, VIN2 0 to 6.5 V LX Pin Switch Voltage VLX1, VLX2 -0.3 to VIN+0.3 V Enable Input Voltage VEN2, VEN2 -0.3 to VIN+0.3 V LX Pin Switch Current ILX1, ILX2 1.8 A Power Dissipation (On PCB, TA=+25° C) PD 2.44 W Thermal Resistance (Junction to Ambient, Simulation) θJA 41 ° C/W Thermal Resistance (Junction to Case, Simulation) θJC 4.2 ° C/W Operating Junction Temperature TJ +155 °C Operating Temperature TOP -40 to +85 °C Storage Temperature Range TSTG -55 to 150 °C ESD (Human Body Model) VHBM 2,000 V ESD (Machine Model) VMM 200 V Note: 4.Stresses greater than those listed under “Absolute Ma ximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Condi tions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.

Document number: DS39604 Rev. 2 - 3 4 of 9 www.diodes.com April 2020 © Diodes Incorporated AP3427M NEW PRODUCT Recommended Operating Conditions (@TA = +25° C, unless otherwise specified.) Symbol Parameter Min Max Unit VIN Supply Input Voltage 2.5 5.5 V TJ Operating Junction Temperature -40 +125 °C TA Ambient Temperature -40 +80 °C L1=L2=2.2μH, CIN1=CIN2=4.7μF, COUT1=COUT2=10μF, IMAX=1A per Channel, unless otherwise specified.) Parameter Symbol Condition Min Typ Max Unit Input Voltage Range VIN VIN = VIN1 = VIN2 2.5 — 5.5 V Shutdown Current IOFF VEN1 = VEN2 =0 — 0.1 1 μA Active Current ION VFB1 = VFB2 = 0.7V, IOUT1 = IOUT2 = 0A — 220 — μA Regulated Feedback Voltage VFB For Adjustable Output Voltage 0.588 0.6 0.612 V Regulated Output Voltage Accuracy ΔVOUT/VOUT VIN =2.5V to 5.5V, IOUT1 or IOUT2 = 0 to 1A -3 — 3 % Peak Inductor Current IPK — 1.5 — — A PMOSFET RDS(ON) RDS(ON)_P VIN = 5V — 200 — mΩ NMOSFET RDS(ON) RDS(ON)_N VIN = 5V — 200 — mΩ EN High-Level Input Voltage VEN_H — 1.5 — — V EN Low-Level Input Voltage VEN_L — — — 0.4 V EN Input Current IEN — — — 0.1 μA Soft Start Time tSS — — 400 — μs Maximum Duty Cycle DMAX — 100 — — % Input Over Voltage Protection VOIP — — 6.2 — V Under Voltage Lock Out Threshold VUVLO Rising — 2.3 — V Falling — 2.1 — Hysteresis — 0.2 — Thermal Shutdown TSD Hysteresis=+30° C — +155 — °C

Document number: DS39604 Rev. 2 - 3 7 of 9 www.diodes.com April 2020 © Diodes Incorporated AP3427M NEW PRODUCT

Ordering Information

PackingPackageProduct Name TR : Tape & Reel G1 : GreenDN : U-DFN3030-10 RoHS/Green Part Number Identification Code Package Temperature Range 13” Tape and Reel Quantity Part Number Suffix AP3427MDNTR-G1 BFE U-DFN3030-10 -40°C to +80° C 5000/Tape & Reel -13 Marking Information XXX Y W X XXX : Identification Code Y : Year 0~9 X : Internal Code ( Top View ) W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week Part Number Package Identification Code AP3427MDNTR-G1 U-DFN3030-10 BFE

Document number: DS39604 Rev. 2 - 3 8 of 9 www.diodes.com April 2020 © Diodes Incorporated AP3427M NEW PRODUCT Package Outline Dimensions Please see http://www.diodes.com/package-outlines.html for the latest version. U-DFN3030-10 A A1 A3 Seating Plane D E e b (Pin #1 ID) L R0.300 z U-DFN3030-10 Dim Min Max Typ A 0.57 0.63 0.60 A1 0.00 0.05 0.02 A3 –– –– 0.15 b 0.20 0.30 0.25 D 2.90 3.10 3.00 D2 2.30 2.50 2.40 E 2.90 3.10 3.00 E2 1.50 1.70 1.60 e -- -- 0.50 L 0.25 0.55 0.40 z –– –– 0.375 All Dimensions in mm Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. U-DFN3030-10 X Y C X1G G Dimensions Value (in mm) C 0.50 G 0.15 X 0.35 X1 2.60 Y 0.60 Y1 1.80

Document number: DS39604 Rev. 2 - 3 9 of 9 www.diodes.com April 2020 © Diodes Incorporated AP3427M NEW PRODUCT IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY A ND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further no tice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license unde r its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applic ations shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising ou t of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, internatio nal or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or system s without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided i n the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in t he safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporat ed products in such safety -critical, life support devices or systems, notwithstanding any devices - or systems -related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporat ed and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2020, Diodes Incorporated www.diodes.com