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Automotive Compliant 150MA High PSRR Low Noise LDO with ENABLE

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The AP7315Q is a low dropout regulator with high output voltage accuracy, low RDS(ON), high PSRR, low output noise and low quiescent current. This regulator is based on a CMOS process.

The AP7315Q is available with fixed output voltage variants with an enable input to turn it on and off. It is available with output discharge (AP7315DQ) and without (AP7315Q) output discharge function.

With its low power consumption and, line and load transient responses the AP7315Q is well suited for noise sensitive automotive applications.
The AP7315Q is qualified to AEC-Q100 Grade 1 in SOT25 and is Automotive Compliant supporting PPAPs.


• Wide VIN Range: 1.7V to 5.25V
• -40°C to +125°C Temperature Range
• Guarantee Output Current,150mA
• VOUT Accuracy ±1%
• Ripple Rejection 75dB at 1kHz
• Low Output Noise, 60μVrms from 10Hz to 100kHz
• Quiescent Current as Low as 35μA
• VOUT Fixed 1.1V to 3.3V


• Infotainment Power Supplies
• Automotive RF Supply
• Cameras
• Automotive POL in ADAS
• Automotive Wireless Communication

Product Specifications

Product Parameters

AEC Qualified Yes
Compliance (Only Automotive supports PPAP) Automotive
Output Current (A) 0.15 A
Dropout Voltage Max (V) .500 V
Quiescent Current Typ (mA) 35 µA
OperatingInputVoltage Min (V) 1.7 V
OperatingInputVoltage Max (V) 5.25 V
Output Voltage (V) 1.1, 1.2, 1.5, 1.8, 2.5, 2.7, 2.8, 2.9, 3.0, 3.3 V
Operating Temperature (Ambient) (°C) -40 to 125 ºC
Operating Temperature (ºC) -40 to 125 Junction ºC

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Technical Documents

Recommended Soldering Techniques




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-2574 2022-04-05 2022-07-05 Qualified Additional Bill of Material (BOM) - Lead Frame Raw Material (C19400 FH)