Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

SOT563.png

Back to Buck Converter

AP61203

2.3V TO 5.5V INPUT, 2A LOW IQ SYNCHRONOUS BUCK CONVERTER

Evaluation Boards and User Guides

AP61203Z6-EVM-User-Guide.pdf (611 KB)

Contact Sales

Description

The DIODES™ AP61200 / DIODES™ AP61201 / DIODES™ AP61202 / DIODES™ AP61203 is a 2A, 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 AP61200/AP61201/AP61202/AP61203 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
2A Continuous Output Current
6V ± 2% Reference Voltage
19μA Low Quiescent Current (Pulse Frequency Modulation)
3MHz Switching Frequency (VIN = 5V, VOUT = 1.8V)
Up to 89% Efficiency at 5mA Light Load
Operation Mode Options
- Pulse Frequency Modulation: AP61200 and AP61202
- Force Pulse Width Modulation: AP61201 and AP61203
Power-Good Indicator
- AP61202 and AP61203
Protection Circuitry
- Undervoltage Lockout (UVLO)
- VIN Overvoltage Protection (OVP)
- Peak Current Limit
- Valley Current Limit
- 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-Q100/101/104/200, 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 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 loads

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)	2
Minimum Output Voltage (V)	0.6
Maximum Output Voltage (V)	3.6
Quiescent Current Typ (µA)	19
Shutdown Current Typ (µA)	0.1
Frequency Typ (kHz)	1300
HS RDS(ON) (mΩ)	110
LS RDS(ON) (mΩ)	80
Features	Enable, Light Load Efficiency, Forced PWM, Power-Good, Output Discharge, Soft-start Fixed, UVLO Fixed, VIN OVP, Overcurrent Protection, Thermal Shutdown, Synchronous Rectification

Technical Documents

Evaluation Boards and User Guides

AP61203Z6-EVM-User-Guide.pdf (611 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