Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. U-DFN2020-6 / SWP (Type UXC)

V-DFN3030-8/SWP (Type UX)

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AP7347EQ

Automotive-Compliant 500mA High-PSRR Low-Noise LDO with Power-Good Indicator

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Description

The AP7347EQ 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 AP7347EQ includes a voltage reference, error amplifier, current-limit circuit, and an enable input to turn it on and off. With the integrated resistor network, fixed output-voltage version and adjustable output-voltage version can be delivered. The AP7347EQ has power-good indicator.

With its low power consumption and line- and load-transient response, the AP7347EQ is well-suited for noise-sensitive automotive equipment.

The AP7347EQ is packaged in the U-DFN2020-6 (SWP) (Type UXC) and V-DFN3030-8/SWP (Type UX) packages.

Feature(s)

Low V_IN and Wide V_INRange: 1.7V to 5.5V
Guarantee Output Current: 500mA
V_OUT Accuracy ±1%
Ripple Rejection 75dB at 1kHz
Low Output Noise, 60µVrms from 10Hz to 100kHz
Quiescent Current as Low as 75µA
Output Voltage Range
- Fixed: 1.0V to 5.0V
- Adjustable: 1.0V to 5.0V
Power-Good (PG) Output for Supply Monitoring and for Sequencing of Other Supplies
Active Output Discharge
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
The AP7347EQ 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)

Infotainment power supplies
Automotive RF supplies
Cameras
Automotive POL in ADAS
Automotive wireless communication systems

Specifications & Technical Documents

Product Parameters

Iq (typ) (µA)	75
Iq (max) (µA)	140
Operating Ambient Temperature (°C)	-40 to 125
AEC Qualified	Yes
Compliance (Only Automotive Supports PPAP)	Automotive
Type	LDO
Output options	Adjustable & Fixed
Iout (A)	0.5
Vin (Max) (V)	5.5
Vin (Min) (V)	1.7
Vout (min)	1
Vout (max)	5
Fixed Vout (V)	1.0, 1.05, 1.1, 1.15,1.2, 1.5,1.7,1.8, 2.2, 2.5, 2.8, 2.9,3.0, 3.3, 5.0
Adjustable VFB (V)	0.8
Accuracy 25C	1
Noise uV RMS 10-100 kHz	60
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage	0.32
PSRR (dB) 1kHz	75
Enable Active	Yes (High)
Channels	1
Output Discharge	Yes
Power Good	Yes
Reverse Protection	No
VCTL Function	No

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Purchase & Availability

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-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products