Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SOT25

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. X2-DFN1010-4

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AP7343

300MA High PSRR Low Noise LDO with ENABLE

Evaluation Boards and User Guides

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

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Description

The AP7343 is a low dropout regulator with high output voltage accuracy, low R_DS(ON), 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 the X2-DFN1010-4 (Type B) and SOT25 packages, allowing for the smallest footprint and a dense PCB layout.

Feature(s)

Low V_IN and Wide V_IN Range: 1.7V to 5.25V
Guarantee Output Current: 300mA
V_OUT Accuracy ±1%
Ripple Rejection 75dB at 1kHz
Low Output Noise, 60µVrms from 10Hz to 100kHz
Quiescent Current as Low as 35µA
V_OUT Fixed 0.9V to 3.6V
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
An automotive-compliant part is available under separate datasheet (AP7343Q)

Application(s)

Smart phones/tablets
RF supplies
Cameras
Portable videos
Portable media players
Wireless adapters
Wireless communications

Specifications & Technical Documents

Product Parameters

Iq (typ) (µA)	35
Iq (max) (?A)	60
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)	3.6
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

Purchase & Availablity

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