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

SOT25.png

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

X2-DFN1010-4.png

Back to Linear and Low Dropout (LDO) Regulators

AP7343

300MA High PSRR Low Noise LDO with ENABLE

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Description

The AP7343 is a low dropout regulator with high output voltage accuracy, low R_DSON, high PSRR, low output noise and low quiescent current. This regulator is based on a CMOS process.

The AP7343 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 versions can be delivered.

With its low power consumption and line and load transient response, the AP7343 is well suited for low power handheld communication equipment.

The AP7343 is packaged in an X2-DFN1010-4 package and allows for smallest footprint and dense PCB layout.

Feature(s)

Low VIN and Wide VIN Range: 1.7V to 5.25V
Guarantee Output Current: 300mA
VOUT Accuracy ±1%
Ripple Rejection 75dB at 1kHz
Low Output Noise, 60µVrms from 10Hz to 100kHz
Quiescent Current as Low as 35µA
VOUT Fixed 0.9V to 3.6V
Moisture Sensitivity: Level 1 Per J-STD-020
Terminals:
- SOT25: Finish - Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208
- X2-DFN1010-4 (Type B): Finish - NiPdAu over Copper Leads, Solderable per MIL-STD-202, Method 208
Weight:
- SOT25: 0.016 grams (Approximate)
- X2-DFN1010-4 (Type B): 0.001 grams (Approximate)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen- and Antimony-Free. “Green” Device (Note 3)
For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

Smartphone/Tablet
R_F Supply
Cameras
Portable Video
Portable Media Player
Wireless Adapter
Wireless Communication

Product Specifications

Product Parameters

Iq (max) (µA)	60
Iq (typ) (?A)	35
AEC Qualified	No
Compliance (Only Automotive supports PPAP)	Standard
Type	LDO
Output options	Fixed
Iout (A)	0.3
Vin (Max) (V)	5.25
Vin (Min) (V)	1.7
Vout (min)	0.9
Vout (max)	5
Fixed Vout (V)	0.9, 1.0, 1.05, 1.1, 1.2, 1.3, 1.35, 1.4, 1.5, 1.6, 1.7, 1.8, 1.85, 1.9, 2.0, 2.1, 2.2, 2.3, 2.5, 2.6, 2.7, 2.8, 2.85, 2.9, 2.95, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6
Accuracy 25C	1
Noise uV RMS 10-100 kHz	60
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage	0.29
PSRR (dB) 1kHz	75
Operating Temperature (Ambient) (°C)	-40 to 85
Enable Active	Yes (High)
Channels	1
Output Discharge	Yes, No
Power Good	No
Reverse Protection	No
VCTL Function	No

Technical Documents

Evaluation Boards and User Guides

AP7343D-33FS4-7B-EVM-User-Guide.pdf (317 KB)

Recommended Soldering Techniques

TN1.pdf

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-2575	2022-04-05	2022-07-05	Qualified Additional Bill of Material (BOM) - Lead Frame Raw Material (C19400 FH)
PCN-2512	2021-04-16	2021-07-16	Qualified Additional Assembly & Test (A/T) Site
PCN-2299	2018-03-01	2018-06-01	Additional Qualified (A/T) Assembly Test Site