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Product Detailed Parameters
- Description：IC REG LINEAR 1.5V 150MA SOT23-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：5.25V
- Voltage - Output (Min/Fixed)：1.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.49V @ 150mA
- Current - Output：150mA
- Current - Quiescent (Iq)：60 µA
- Current - Supply (Max)：100 µA
- PSRR：75dB (1kHz)
- Control Features：-
- Protection Features：Over Current
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
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Overview
The AP7315-15SA-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a stable 1.5V output with a guaranteed maximum load current of 150mA. It operates within an input voltage range of 1.7V to 5.25V and features high ripple rejection of 75dB at 1kHz alongside low output noise of 60µVrms from 10Hz to 100kHz. The device incorporates an enable pin for power management, maintains an output voltage accuracy of ±1%, and draws a quiescent current as low as 35µA. Packaged in the SOT23 form factor, it supports operation across an ambient temperature range of -40°C to +85°C.
Feature Summary
- Integrated enable control pin allows precise power switching between active regulation and shutdown modes
- CMOS-based architecture delivers high ripple rejection and minimal output noise for sensitive subsystems
- Built-in short-circuit protection clamps output current to prevent thermal damage during fault conditions
Applications
- Smart Phone/PAD
- RF Supply
- Cameras
- Portable Videos
- Wireless Communication
Procurement Notes
Verify that the ordering suffix SA corresponds specifically to the SOT23 package configuration required for your PCB footprint. Confirm the -7 suffix indicates tape and reel packaging if automated assembly is planned. Ensure the specific 1.5V fixed output variant matches the target rail requirements. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and revision status before finalizing procurement orders.
Selection Notes
Select this component when designing circuits requiring a compact, low-noise power source for RF or wireless modules. The SOT23 package provides a small footprint suitable for dense layouts. Verify that the minimum input voltage requirement of 1.7V aligns with the available supply rails under all operating conditions. Consider the 150mA current limit when sizing external capacitors and trace widths for peak load demands.
Part Context
This device belongs to the AP7315 family of low dropout regulators designed for handheld communication equipment. The series offers various fixed output voltages ranging from 1.1V to 3.3V. Different package options include X2-DFN1010-4, SOT23, and SOT25. The SA suffix specifically denotes the standard SOT23 three-terminal surface mount package used in this specific part number.
Replacement Considerations
AP7315-15SR-7 (Same voltage, different SOT23 pinout)
FAQ
How does the enable pin function on the AP7315-15SA-7?
The EN pin controls the regulator's state; driving it high enables the output, while pulling it low activates shutdown mode. It must not be left floating.
What is the typical ripple rejection performance at 1kHz?
The device guarantees a ripple rejection of 75dB at a frequency of 1kHz under specified test conditions.
