Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SOT563

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AP61204Q

2.4V to 5.5V Input, 2A Low IQ Synchronous Buck Converter

Datasheet

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Description

The AP61204Q is an automotive-compliant, 2A, 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.

The AP61204Q 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 T_A Range
VIN: 2.4V to 5.5V
Output Voltage (VOUT): 0.6V to VIN
2A Continuous Output Current
6V ± 2% Reference Voltage
19μA Low Quiescent Current (Pulse-Frequency Modulation)
4MHz 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
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 AP61204Q is suitable for automotive applications requiring specific change control; this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/

Application(s)

Automotive power systems
Automotive infotainment
Automotive instrument clusters
Automotive telematics
Advanced driver assistance systems

Specifications & Technical Documents

Product Parameters

Compliance (Only Automotive Supports PPAP)	Automotive
Type	Buck
HS RDS(ON) (mΩ)	70
LS RDS(ON) (mΩ)	50
MaximumInput Voltage (V)	5.5
MinimumInput Voltage (V)	2.4
Quiescent Current Typ (μA)	19
Shutdown Current Typ (µA)	0.1
Output Current (A)	2 A
Minimum Output Voltage (V)	0.6
Maximum Output Voltage (V)	VIN
Frequency Typ (kHz)	2400
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

Recommended Soldering Techniques

TN1.pdf

Purchase & Availability

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