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TPS62133RGTR

3A synchronous buck, 5V fixed, 3-17V in, 2.5MHz, QFN-16

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Manufacturer Part：

TPS62133RGTR

Package：

QFN-16 (3x3mm)

Brand：
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Description

Product Overview

The TPS62133RGTR from TI is a 3A synchronous step-down converter with 5V fixed output, 3-17V input range, and 2.5MHz switching in QFN-16 for point-of-load power conversion.

Key Specifications

Package QFN-16 (3x3mm)

Features

  • See datasheet for complete specifications
  • Industry-standard package

Applications

  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Automotive electronics

The TPS62133RGTR from TI is a 3A synchronous step-down converter with 5V fixed output, 3-17V input range, and 2.5MHz switching in QFN-16 for point-of-load power conversion.

The TPS62133RGTR is a 3A synchronous step-down converter from Texas Instruments in VQFN-16 (3x3mm), providing a fixed 5V output from 3-17V input at 2.5MHz switching frequency. The synchronous design uses internal N-channel MOSFETs for both the high-side and low-side switches, eliminating the external Schottky diode. The 2.5MHz frequency allows the use of tiny 1.0-2.2uH inductors in 0805 footprint. The DCS-Control (Direct Control with Seamless transition) architecture provides: (1) Fast transient response without external compensation (the output capacitor ESR is part of the control loop); (2) Seamless transition between PWM (continuous conduction) and PFM (discontinuous conduction) modes at light load, maintaining high efficiency down to 1mA; (3) Fixed-frequency operation at medium/heavy load for predictable EMI. The no-load supply current is 17uA in PFM mode. The output voltage accuracy is +/-1.5% over temperature. The minimum on-time is 70ns, allowing high step-down ratios (e.g., 17V to 5V at 2.5MHz). The PG (Power Good) output enables power-sequencing of downstream rails. The device is 95% efficient at 12V input, 5V/1A output. The -RGTR suffix specifies VQFN-16, tape-and-reel. Applications include: 5V USB power from 12V, post-regulation after automotive 12V, and FPGA power from 5V/12V rails.

Pin Name Type Function
1 SW Output Switch node (connects to inductor, internal MOSFET drain)
2 PGND Power Power ground (high-current return path)
3 VIN Power Input supply (3-17V, connect with 10uF ceramic)
4 EN Input Enable (HIGH=on, internal pull-up, LOW=shutdown, 1.7uA Iq)
5 AGND Power Analog ground (quiet ground reference for control circuitry)
6 FB Input Feedback (connect directly to VOUT for 5V fixed, or resistor divider)
7 PG Output Power good (open-drain, HIGH when output within 5% of target)
8-16 VOUT/BOOT/AGND/Exposed Pad Power Output voltage / bootstrap cap / ground / thermal pad
  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Automotive electronics
    • Manufacturer Part Number Package Notes
    Texas Instruments TPS62133RGTR VQFN-16 Same device, TI brand
    Texas Instruments TPS62130RGTR VQFN-16 3A, 3-17V, adjustable version
    Texas Instruments TPS62135RGTR VQFN-16 3A, 3-17V, 3.3V fixed version
    Monolithic Power MP8759GD-Z QFN-12 4A 18V sync buck, MP brand
    Analog Devices LT8610ABEMSE#TRPBF MSOP-10 2.5A 42V sync buck, ADI brand
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