AP7351D-33FS4-7B

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The AP7351D-33FS4-7B is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a stable 3.3V output with a maximum current of 150mA. The device operates within an input voltage range of 1.4V to 5.5V and maintains an output voltage accuracy of ±1%. Key electrical characteristics include a quiescent current as low as 0.5µA, a typical standby current of 0.02µA, and ripple rejection up to 60dB at 1kHz. It features thermal shutdown protection and is housed in an X2-DFN1010-4 (Type B) package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Ultra-low quiescent current and standby current for extended battery life
• Integrated enable pin for power management control
• High output voltage accuracy with integrated resistor network
• Built-in current limit and thermal shutdown protection

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Wearable Electronics
• Sensor Module for Internet-Of-Things (IOT)
• Wireless Communication Module
• Battery-Operated Device
• Camera
• Image Sensor

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific ordering suffix FS4-7B confirms the X2-DFN1010-4 (Type B) package and tape & reel packaging quantity of 10,000 units. Ensure the component meets RoHS compliance standards and confirm the manufacturer's lead time requirements before finalizing procurement plans.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when designing low-power systems requiring a precise 3.3V rail from varying input sources between 1.4V and 5.5V. The ultra-low standby current makes it suitable for battery-operated devices where minimizing drain during sleep modes is critical. Verify that the required load current does not exceed the guaranteed 150mA limit.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the AP7351D series of low dropout regulators designed for handheld and wearable applications. The series offers various fixed output voltages ranging from 0.8V to 4.5V. It utilizes a CMOS process to achieve high efficiency and low noise performance while maintaining a compact footprint suitable for dense PCB layouts.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Consult official documentation for direct substitutes. Cross-reference pinouts and electrical specifications carefully if considering alternative LDOs.