Diodes Incorporated
X2 DFN1212 6

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AP7346 (Not Recommended for new design)

NRND = Not Recommended for New Design

Dual 130MA High Accuracy Current Limit LDO with ENABLE

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The AP7346 is a Dual low dropout regulator with high output voltage accuracy, low RDSON, high PSRR, low output noise and low quiescent current. This regulator is based on a CMOS process. Each of regulators includes a voltage reference, error amplifier, current limit circuit and an enable input to turn on/ off output. With the integrated resistor network fixed output voltage versions can be delivered. With its low power consumption and line and load transient response, the AP7346 is well suited for low power handheld communication equipment. The AP7346 is packaged in X2-DFN1212-6 package and allows for smallest footprint and dense PCB layout.


  • Low VIN and Wide VIN Range: 1.7V to 5.25V
  • High Accuracy Current Limit 157mA+/- 25mA
  • VOUT Accuracy ±1%
  • Ripple Rejection: 75dB at 1kHz
  • Low Output Noise: 60µVrms from 10Hz to 100kHz
  • Quiescent Current as Low as 35µA
  • VOUT Fixed 1.2V to 3.6V


  • Fingerprint Modular
  • Smart Phone/PAD
  • RF Supply
  • Cameras
  • Portable Video
  • Portable Media Player
  • Wireless Adapter
  • Wireless Communication

Product Specifications

Product Parameters

Accuracy 25C 1
AEC Qualified No
Automotive Compliant and PPAP capable no
Compliance (Only Automotive supports PPAP) No
Channels 2
Compliance (Only Automotive supports PPAP) Standard
Dropout Voltage Max (V) 0.3
Enable Active Yes (High)
Features High PSRR, Small-size
Fixed Vout (V) 1.2, 1.5, 1.8, 2.5, 2.8, 3.0, 3.3, 3.6
Fixed Vout(V) 3.6, 3.3, 3.0, 2.8, 2.5, 1.8, 1.5, 1.2
Fixed Vout(V) 3.6,3.3,3.0,2.8,2.5,1.8,1.5,1.2
IOUT 0.13
Iout (A) 0.13
IQ (mA) 35
Iq (max) (µA) 50
Iq (max) (µA) 50
Iq (max) (µA) 50
Iq (max) (µA) 50
Iq (typ) (µA) 35
Iq (typ) (µA) 35
Noise uV RMS 10-100 kHz 35
OperatingInputVoltage Max (V) 5.25
OperatingInputVoltage Min (V) 1.7
Operating Temperature (ºC) -40 to 85
Operating Temperature (Ambient) (°C) -40 to 85
Operating Temperature N/A
Output Current (mA) 0.13
Output Discharge Yes
Output options Fixed
Output Voltage (V) 1.2/1.8, 1.5/2.8, 1.8/1.5, 1.8/1.8, 1.8/2.8, 1.8/3.3, 2.8/1.8, 2.8/2.5, 2.8/3.3, 3/1.8, 3/2.8, 3/3, 3.3/1.8, 3.3/2.8, 3.3/3, 3.3/3.3, 3.6/1.2
Power Good No
PSRR (dB) 1K Hz 75
PSRR (dB) 1kHz 75
AEC Qualified No
Quiescent Current Typ (mA) 35
Reverse Protection No
Type LDO
VCTL Function No
VDROPOUT (Max) 0.3
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 0.29
VDROPOUT (Max) (V) at Max Current and Max Voltage 0.29
VDROPOUT (Max)(V) at Max Current and Max Voltage 0.29
VIN (Max) 5.25
Vin (Max) (V) 5.25
VIN (Min) 1.7
Vin (Min) (V) 1.7
VOUT 1.2/1.8, 1.5/2.8, 1.8/1.5, 1.8/1.8, 1.8/2.8, 1.8/3.3, 2.5/1.8, 2.8/1.2, 2.8/1.8, 2.8/2.5, 2.8/3.3, 3/1.8, 3/2.8, 3/3, 3.3/1.8, 3.3/2.8, 3.3/3, 3.3/3.3, 3.6/1.2
Vout (max) 5
Vout (min) 1.2

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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-2654 2024-02-15 2024-04-28 Device End of Life (EOL)