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SG2525AP
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Product Detailed Parameters
- Description：IC REG CTRLR BCK/PSH-PULL 16SOIC
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Down, Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck, Push-Pull
- Number of Outputs：2
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：8V ~ 35V
- Frequency - Switching：100Hz ~ 400kHz
- Duty Cycle (Max)：49%
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Soft Start
- Operating Temperature：-25°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SO
- Grade：-
- Qualification：-
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Overview
The SG2525AP is a voltage mode PWM controller manufactured by STMicroelectronics, designed for switching power supply applications. It operates within an input voltage range of 8V to 35V and features a dual output configuration with a maximum output current of 400mA to 500mA. The device supports a switching frequency range from 100Hz to 400kHz and utilizes a SOIC-16 surface-mount package. Key electrical parameters include a 5.1V reference voltage trimmed to ±1%, a maximum duty cycle of 49%, and rise/fall times of 100ns/50ns respectively. It functions within a temperature range of -25°C to +85°C.
Feature Summary
- Integrated internal soft-start circuitry requiring only an external timing capacitor
- Built-in undervoltage lockout with hysteresis for jitter-free operation
- Latching PWM mechanism prevents multiple pulses per clock cycle
- Separate oscillator sync terminal allows synchronization to external clocks
Applications
- DC-to-DC switching power supplies
- Push-pull converter topologies
- Synchronized multi-unit power systems
- Industrial power management modules
Procurement Notes
Verify the specific suffix (e.g., AP vs AN) against the required package type (SOIC-16 vs DIP-16). Confirm RoHS compliance status as indicated in official documentation. Ensure the ordering part number matches the exact tape-and-reel or tube packaging requirements specified by the manufacturer for the SG2525AP variant.
Selection Notes
Select this component when a voltage-mode controller with integrated soft-start and latch protection is required. The SOIC-16 package suits surface-mount designs. Consider the 400kHz maximum frequency limit for high-density applications. Verify that the 500mA output drive capability meets the gate charge requirements of the target power switches.
Part Context
The SG2525AP belongs to the SG3525A series of regulating pulse width modulators. This family is engineered to reduce external component count while improving performance in various switching power supply designs. The SG2525AP specifically denotes the surface-mount SOIC-16 version of this widely used industrial-grade controller.
Replacement Considerations
Direct pin-compatible substitutes include the SG2525AN (DIP-16 package) and generic SG3525 variants. Verify that alternative sources match the 8V-35V operating range and 400kHz frequency specifications before integration.
