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AP61100

2.3V TO 5.5V INPUT, 1A LOW IQ SYNCHRONOUS BUCK CONVERTER

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Description

The AP61100/AP61102 is a 1A, synchronous buck converter with a wide input voltage range of 2.3V to 5.5V. The device fully integrates a 110mΩ high-side power MOSFET and an 80mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. The AP61100/AP61102 device is easily used by minimizing the external component count due to its adoption of Constant On-Time (COT) control to achieve fast transient response, easy loop stabilization, and low output voltage ripple. The device is available in a SOT563 package.

Feature(s)

VIN: 2.3V to 5.5V
Output Voltage (VOUT): 0.6V to 3.6V
1A Continuous Output Current
0.6V ± 2% Reference Voltage
15μA Low Quiescent Current (Pulse Frequency Modulation)
2.2MHz Switching Frequency (VIN = 5V, VOUT = 1.8V)
Up to 89% Efficiency at 5mA Light Load
Programmable Operation Mode Through EN
o Pulse Frequency Modulation
o Pulse Width Modulation Regardless of Output Load
Power-Good Indicator
o AP61102
Protection Circuitry
o Undervoltage Lockout (UVLO)
o VIN Overvoltage Protection (OVP)
o Peak Current Limit
o Valley Current Limit
o Thermal Shutdown
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/

Application(s)

5V Input Distributed Power Bus Supplies
White Goods and Small Home Appliances
FPGA, DSP, and ASIC Supplies
Network Video Cameras
Wireless Routers
Consumer Electronics
General Purpose Point of Load

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP)	Standard
Type	Buck
Minimum Input Voltage (V)	2.3
Maximum Input Voltage (V)	5.5
Output Current (A)	1
Minimum Output Voltage (V)	0.6
Maximum Output Voltage (V)	3.6
Quiescent Current Typ (µA)	15
Shutdown Current Typ (µA)	0.1
Frequency Typ (kHz)	2200
HS RDS(ON) (mΩ)	110
LS RDS(ON) (mΩ)	80
Features	Enable, Light Load Efficiency,Forced PWM,Output Discharge,Soft-start Fixed,UVLO Fixed,VIN OVP,Overcurrent Protection,Thermal Shutdown,Synchronous Rectification

Technical Documents

Evaluation Boards and User Guides

AP61100Z6-EVM.pdf (812 KB)

Calculators

AP61x0x-Q-Power-Calculation.xlsx (451 KB)

Recommended Soldering Techniques

TN1.pdf

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2674	2024-03-28	2024-06-26	Additional Wafer Source SPFAB
PCN-2605	2023-03-09	2023-06-09	Qualified Additional Cu Pillar Bump Site and Bill of Materials (BOM) Lead Frame Material
PCN-2531	2021-07-30	2022-01-29	Additional Die Revision, Redistribution Layer (RDL), BUMP Sites (SJSEMI and LBS), as well as Assembly/Test (A/T) Site (CAT)