AP7383-33WR-7

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

The AP7383-33WR-7 is a positive voltage regulator IC from Diodes Incorporated, featuring a wide input voltage range up to 30V and a fixed output of 3.3V. It provides a maximum output current of 150mA with an ultra-low quiescent ground current of 3µA. The device operates within a junction temperature range of -40°C to +125°C and includes thermal shutdown protection. It utilizes a space-saving SOT25 package (WR variant) and requires only 1µF ceramic capacitors for stability.

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

• Ultra-low quiescent current consumption
• Wide input voltage tolerance
• Integrated thermal shutdown circuitry
• Compatible with low ESR ceramic capacitors

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

• Battery-powered equipment
• Laptops and palmtops
• Portable information appliances

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

Verify the specific WR suffix against the datasheet pinout diagram to ensure correct VIN, GND, and VOUT alignment for your PCB layout. Confirm that the required output voltage matches the 33 designation for 3.3V. Ensure the application environment stays within the specified operating temperature limits to maintain performance reliability.

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

Select this component when a high-input voltage LDO is required alongside minimal standby power consumption. The WR package variant offers a specific pin configuration distinct from W5 or WW packages. Verify that the load current does not exceed 150mA and that the dropout voltage characteristics at the expected load are acceptable for the design.

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

This part belongs to the AP7383 series of ULDO regulators designed for portable electronics. The series offers multiple fixed output voltages and various package options including SOT89 and U-DFN2020-6. The WR package specifically denotes a five-pin SOT25 footprint optimized for surface-mount assembly in compact designs.

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

AP7383-33W5-7

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

What is the function of Pin 3 on the AP7383-33WR-7?

Pin 3 serves as the Enable (EN) input. For standard operation, it should be tied to the VIN rail.

Does the AP7383-33WR-7 require external feedback resistors?

No, the output voltage is internally set by a resistor network, eliminating the need for external components to define the voltage level.