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    Parts    AP7361C-18FGE-7
AP7361C-18FGE-7

DIOAP7361C-18FGE-7

Diodes Incorporated
Linear Voltage Regulator IC Positive Fixed 1 Output 1A U-DFN3030-8 (Type E)
Active9,727 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The AP7361C-18FGE-7 is a 1A low dropout (LDO) linear voltage regulator providing a fixed 1.8V output from an input range of 2.2V to 6.0V. It is housed in a thermally enhanced U-DFN3030-8 package, making it suitable for high-current applications where PCB space is limited.

Why Choose This Part

This regulator features fold-back short circuit and thermal shutdown protection for robust system reliability. It is designed for stability with various capacitor types, including low-ESR ceramic MLCCs (2.2uF), and offers high output accuracy of 1 percent.

Applications

FPGA and DSP Core Power
Provides a stable 1.8V rail for low-voltage digital logic cores and I/O banks requiring up to 1A.
Optical Module Power Management
Used in SFP and QSFP modules where high PSRR (75dB at 1kHz) is required to maintain signal integrity.
Battery-Powered Handhelds
Utilizes a low 60uA quiescent current and 0.05uA shutdown current to extend battery life in portable electronics.
Wireless Communication Infrastructure
Supplies clean power to RF front-ends and baseband processors sensitive to power supply noise.

Key Specifications

PSRR 75dB ~ 55dB (1kHz ~ 10kHz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case 8-UDFN Exposed Pad
Control Features Enable
Current - Output 1A
Protection Features Over Current, Over Temperature
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 85degC
Voltage - Input (Max) 6V
Voltage Dropout (Max) 0.57V @ 1A (Typ)
Supplier Device Package U-DFN3030-8 (Type E)
Current - Quiescent (Iq) 80 uA
Voltage - Output (Min/Fixed) 1.8V

Getting Started

Ensure the exposed pad of the U-DFN3030-8 package is soldered to a large copper ground plane for optimal thermal dissipation. Place a 2.2uF ceramic capacitor as close as possible to the input and output pins to maintain stability and improve transient response.

AP7361 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Output Type Package Temp Range Voltage Dropout (Max) Output V Stock
AP7361C-18FGE-7 (this part) Fixed UDFN-8 -40degC ~ 85degC 0.57V 1.8V 9,727
AP7361C-33ER-13 Fixed 4-261 -40degC ~ 85degC (.. 0.36V 3.3V 10,822
AP7361C-18SP-13 Fixed SOIC-8 -40degC ~ 85degC 0.57V 1.8V 1,560
AP7361C-25E-13 Fixed 4-261 -40degC ~ 85degC 0.44V 2.5V 22,215
AP7361C-FGE-7 Adjustable UDFN-8 -40degC ~ 85degC 0.36V 0.8V 32,947
AP7361C-25ER-13 Fixed 4-261 -40degC ~ 85degC 0.44V 2.5V 2,267
AP7361C-33E-13 Fixed 4-261 -40degC ~ 85degC 0.36V 3.3V —
AP7361C-28E-13 Fixed 4-261 -40degC ~ 85degC 0.36V 2.8V —
AP7361C-12E-13 Fixed 4-261 -40degC ~ 85degC 0.7V 1.2V —
AP7361C-15E-13 Fixed 4-261 -40degC ~ 85degC 0.57V 1.5V —

Also Consider

TLV75718P TITexas Instruments - Offers a smaller SOT-23-5 package for 1A applications where thermal constraints are less aggressive.
NCP114 ONonsemi - An alternative 1.8V LDO optimized for battery life with very low quiescent current, though with a lower 300mA maximum output.