Diodes Incorporated

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AP7332 (Not Recommended for new design)

NRND = Not Recommended for New Design

Dual 300MA Low Quiescent Current Fast Transient Low Dropout Linear Regulator

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The AP7332 is 300mA, dual fixed output voltage, low dropout linear regulator. The AP7332 includes the pass element, error amplifier, band-gap, current limit and thermal shutdown circuitry which protect the IC from damage in fault conditions. The AP7332 has two enable pins (EN1 and EN2) to independently turn the respective channel on when a logic high level is applied. The characteristics of low dropout voltage and low quiescent current make it suitable for low power applications. The typical quiescent current is approximately 60μA. This device is available with fixed output options of 1.0V/1.0V, 1.0V/3.3V, 1.2V/1.8V, 1.2V/3.3V, 1.5V/2.8V, 1.5V/3.0V, 1.5V/3.3V, 1.8V/2.8V, 1.8V/3.0V, 1.8V/3.3V, 2.5V/3.0V, 2.8V/3.3V and 3.3V/3.3V. For other output options please contact our local sales representative directly or through our distributor located in your area. The AP7332 is available in SOT26 and DFN2018-6 packages.


  • 300mA Low Dropout Regulator with EN
  • Very low IQ: 60μA
  • Wide input voltage range: 2V to 6V
  • Fixed output options: 1.0V to 3.3V
  • High PSRR: 65dB at 1kHz
  • Fast start-up time: 60μs
  • Stable with low ESR, 1μF ceramic output capacitor
  • Excellent Load/Line Transient Response
  • Low dropout: 300mV at 300mA
  • Current limit protection
  • Short circuit protection
  • Thermal shutdown protection
  • Ambient temperature range: -40°C to 85°C
  • SOT26 and DFN2018-6: Available in “Green” Molding Compound (No Br, Sb)
  • Lead Free Finish/RoHS Compliant


  • Cellular Phones
  • Smart Phones, PDAs
  • MP3/MP4
  • Bluetooth head set
  • Low power application

Product Specifications

Product Parameters

Accuracy 25C 2%
Automotive Compliant and PPAP capable no
Compliance (Only Automotive Supports PPAP) Standard
Compliance (Only Automotive supports PPAP) No
Channels 2
Dropout Voltage Max (V) 0.4
Enable Active H
Features Small-size
Fixed Vout (V) 1.0, 1.2, 1.5, 1.8, 2.5, 2.7, 2.8, 3.0, 3.3
Fixed Vout(V) 3.3, 3.0, 2.8, 2.7, 2.5, 1.8, 1.5, 1.2, 1.0
Fixed Vout(V) 3.3,3.0,2.8,2.7,2.5,1.8,1.5,1.2,1.0
IOUT 0.3
Iout (A) 0.3
IQ (mA) 60
Iq (max) (µA) 80
Iq (max) (µA) 80
Iq (max) (µA) 80
Iq (typ) (µA) 60
Iq (typ) (µA) 60
OperatingInputVoltage Max (V) 6
OperatingInputVoltage Min (V) 2
Operating Temperature (ºC) -40 to 85
Operating Temperature (Ambient) (°C) -40 to 85
Operating Temperature -40 to 125
Output Current (mA) 0.3
Output Discharge no
Output options Fixed
Output Voltage (V) 3.3/3.3, 2.8/3.3, 2.5/3.0, 1.8/3.3, 1.8/3.0, 1.2/1.8, 1.2/3.3, 1.5/2.8, 1.5/3.0, 1.5/3.3, 1.8/2.8, 1.0/3.3, 1.0/1.0
PSRR (dB) 1K Hz 65
PSRR (dB) 1kHz 65
AEC Qualified No
Quiescent Current Typ (mA) N/A
VCTL Function no
VDROPOUT (Max) 0.6
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 0.4
VDROPOUT (Max) (V) at Max Current and Max Voltage 0.4
VDROPOUT (Max)(V) at Max Current and Max Voltage 0.4
VIN (Max) 6
Vin (Max) (V) 6
VIN (Min) 2
Vin (Min) (V) 2
VOUT 3.3/3.3, 2.8/3.3, 2.5/3.0, 1.8/3.3, 1.8/3.0, 1.8/2.8, 1.8/2.7, 1.5/3.3, 1.5/3.0, 1.5/2.8, 1.2/3.3, 1.2/1.8, 1.0/3.3, 1.0/1.0
Vout (max) 3.3
Vout (min) 1

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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-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site