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Product Detailed Parameters
- Description：IC REG LINEAR 3.3V 150MA SOT23R
- 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)：3.3V
- 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：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT23R
Download product information
Overview
The AP7313-33SRG-7 is a fixed-output low dropout linear regulator providing a 3.3V output with a maximum load current of 150mA. It operates within an input voltage range of 2V to 6V and maintains a typical quiescent current of 65µA across the full load spectrum. The device features a typical dropout voltage of 150mV at 150mA and offers a power supply rejection ratio (PSRR) of 65dB at 100Hz. It includes built-in current limit, short circuit, and thermal shutdown protections, functioning reliably in ambient temperatures from -40°C to +85°C.
Feature Summary
- Very low quiescent current consumption for extended battery life
- Fast transient response with ultra-fast start-up time
- Stable operation using small ceramic capacitors
- Integrated over-current, short-circuit, and thermal protection
Applications
- Battery powered devices
- Portable devices
- Notebook and desktop computers and peripherals
- CD-ROM, DVD and LAN cards
Procurement Notes
Verify that the component matches the specific SOT23R package variant indicated by the SR suffix. Confirm the fixed 3.3V output designation via the 33 code. Ensure compliance with RoHS3 standards and Green molding compound requirements if applicable to your manufacturing process. Cross-reference the datasheet revision to confirm pin assignments and electrical characteristics align with your design specifications before finalizing procurement.
Selection Notes
Select this regulator when a stable 3.3V rail is required from inputs between 2V and 6V with minimal ground current draw. It is suitable for applications demanding fast load transient recovery without requiring large output capacitance. Consider its thermal resistance and power dissipation limits under maximum load conditions to ensure adequate heat management within the compact SOT23R footprint.
Part Context
This component belongs to the AP7313 series of low dropout linear regulators manufactured by Diodes Incorporated. The series provides various fixed output voltages ranging from 1.0V to 3.3V. The AP7313-33SRG-7 specifically denotes the 3.3V output version packaged in the SOT23R form factor with Green molding compound and tape-and-reel packaging.
Replacement Considerations
AP7313-33SA-7
FAQ
What type of output capacitor is recommended for stability?
The AP7313-33SRG-7 is stable with low ESR ceramic capacitors. A capacitance value between 1µF and 4.7µF with an ESR from 10mΩ to 200mΩ is recommended.
How does the device protect against overheating?
It features thermal shutdown protection that disables the output when the junction temperature reaches approximately 140°C. The output re-enables when the temperature drops to approximately 125°C.
