AP61300/AP61302
2.4V TO 5.5V INPUT, 3A LOW IQ SYNCHRONOUS BUCK CONVERTER
Description
Pin Assignments
The AP61300/AP61302 is a 3A, synchronous buck converter with a
wide input voltage range of 2.4V to 5.5V. The device fully integrates a
70mΩ high-side power MOSFET and a 50mΩ low-side power
MOSFET to provide high-efficiency step-down DC-DC conversion.
(Top View)
FB 1
The AP61300/AP61302 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.
GND 2
6 OUT
AP61300
VIN 3
The device is available in a SOT563 package.
Applications
VIN: 2.4V to 5.5V
Output Voltage (VOUT): 0.6V to VIN
3A Continuous Output Current
0.6V ± 2% Reference Voltage
19μA Low Quiescent Current (Pulse Frequency Modulation)
2.2MHz Switching Frequency (VIN = 5V, VOUT = 1.8V)
Up to 84% Efficiency at 5mA Light Load
Programmable Operation Mode Through EN
Pulse Frequency Modulation
Pulse Width Modulation Regardless of Output Load
Low-Dropout (LDO) Mode
Power-Good Indicator
AP61302
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-Q100/101/200, PPAP
capable, and manufactured in IATF 16949 certified facilities),
please contact us or your local Diodes representative.
https://www.diodes.com/quality/product-definitions/
Notes:
5 EN
GND 2
4 SW
VIN 3
6 PG
AP61302
5 EN
4 SW
SOT563
Features
FB 1
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 Load
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
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