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Product Detailed Parameters
- Description：IC REG LINEAR 1.8V 150MA SOT-25
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：6V
- Voltage - Output (Min/Fixed)：1.8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.3V @ 150mA
- Current - Output：150mA
- Current - Quiescent (Iq)：75 µA
- Current - Supply (Max)：85 µA
- PSRR：65dB (100Hz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-25
Download product information
Overview
The AP7311-18WG-7 is a fixed-output low dropout linear regulator manufactured by Diodes Incorporated. It provides a stable 1.8V output with a maximum load current of 150mA. The device operates within an input voltage range of 2V to 6V and features a typical quiescent current of 65µA across the full load range. It includes built-in current limit, short circuit, and thermal shutdown protections. The component is housed in a SOT25 package and supports operation from -40°C to +85°C.
Feature Summary
- Provides fast transient response suitable for rapidly changing loads
- Includes integrated current limit and thermal shutdown protection
- Operates stably with small ceramic output capacitors
Applications
- Portable devices
- Battery powered devices
- Notebook and desktop computers and peripherals
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with RoHS compliance requirements and confirm that the SOT25 package dimensions align with the target PCB footprint layout before finalizing procurement orders.
Selection Notes
Select this component when a fixed 1.8V rail is required with moderate current demands up to 150mA. It is appropriate for designs prioritizing low ground current consumption and rapid recovery from standby modes. Verify that the input voltage remains within the specified 2V to 6V operational window for proper regulation.
Part Context
This part belongs to the AP7311 series of low dropout regulators designed for portable electronics. The series offers both adjustable and fixed output options in compact packages. The AP7311-18WG-7 specifically denotes the fixed 1.8V variant packaged in SOT25 with green molding compound and tape-and-reel delivery.
Replacement Considerations
AP7311-18W5-7
FAQ
What is the minimum capacitance required for input stability?
A 1µF ceramic capacitor is recommended between the VIN and GND pins to decouple input power supply glitches and noise.
How does the device handle short circuit conditions?
Short circuit protection triggers when the output voltage drops below 200mV, clamping the output current to approximately 50mA to prevent damage.
