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AP61300Q

Automotive-Compliant, 5.5V Input, 3A Low IQ Synchronous Buck Converter

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Description

The AP61300Q/AP61302Q is an automotive-compliant, 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 stepdown DC-DC conversion.
The AP61300Q/AP61302Q 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)

AEC-Q100 Qualified for Automotive Applications
Device Temperature Grade 1: -40°C to +125°C TA Range
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
- AP61302Q
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)
The AP61300Q and AP61302Q are suitable for automotive
applications requiring specific change control; these parts
are AEC-Q100 qualified, PPAP capable, and manufactured in
IATF 16949 certified facilities.
https://www.diodes.com/quality/product-definitions/

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP)	Automotive
Type	Buck
Minimum Input Voltage (V)	2.4
Maximum Input Voltage (V)	5.5
Output Current (A)	3
Minimum Output Voltage (V)	0.6
Maximum Output Voltage (V)	VIN
Quiescent Current Typ (µA)	19
Shutdown Current Typ (µA)	0.1
Frequency Typ (kHz)	2200
HS RDS(ON) (mΩ)	70
LS RDS(ON) (mΩ)	50
Features	Enable, Light Load Efficiency, EN pin to set up PFM or Force PWM Output Discharge, Soft-start Fixed, UVLO Fixed, VIN OVP, Overcurrent Protection, Thermal Shutdown, Synchronous Rectification