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TPS561300

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4.5V 至 30V 輸入、1A、1.2MHz 同步降壓轉換器

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TPS561300

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Rating Catalog Topology Buck Iout (max) (A) 1 Vin (max) (V) 30 Vin (min) (V) 4.5 Vout (max) (V) 30 Vout (min) (V) 0.6 Features Enable, Light-load efficiency, Prebias startup, Soft-start fixed, Spread Spectrum, Synchronous rectification, UVLO adjustable EMI features Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000045 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 1 Vin (max) (V) 30 Vin (min) (V) 4.5 Vout (max) (V) 30 Vout (min) (V) 0.6 Features Enable, Light-load efficiency, Prebias startup, Soft-start fixed, Spread Spectrum, Synchronous rectification, UVLO adjustable EMI features Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000045 Duty cycle (max) (%) 100
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Configured for a wide range of applications
    • 4.5V to 30V input voltage range
    • Up to 1A continuous output current
    • 0.6V ± 1.5% reference voltage (25°C)
    • Supports low drop out mode
  • High efficiency
    • Integrated 100mΩ and 60mΩ MOSFETs
    • Low 2µA shutdown, 26µA quiescent current
    • Pulse frequency modulation (PFM) for high light load efficiency
  • Ease of use
    • Peak current mode control with internal loop compensation
    • Fixed 1200kHz switching frequency
    • Internal 5ms soft start
    • Frequency spread spectrum to reduce electromagnetic interference (EMI)
    • Overcurrent protection for both MOSFETs with hiccup mode protection
    • Non-latched protection for over temperature protection (OTP), overcurrent protection (OCP), overvoltage protection (OVP), and undervoltage lockout (UVLO)
    • SOT-23 (6) package
  • Configured for a wide range of applications
    • 4.5V to 30V input voltage range
    • Up to 1A continuous output current
    • 0.6V ± 1.5% reference voltage (25°C)
    • Supports low drop out mode
  • High efficiency
    • Integrated 100mΩ and 60mΩ MOSFETs
    • Low 2µA shutdown, 26µA quiescent current
    • Pulse frequency modulation (PFM) for high light load efficiency
  • Ease of use
    • Peak current mode control with internal loop compensation
    • Fixed 1200kHz switching frequency
    • Internal 5ms soft start
    • Frequency spread spectrum to reduce electromagnetic interference (EMI)
    • Overcurrent protection for both MOSFETs with hiccup mode protection
    • Non-latched protection for over temperature protection (OTP), overcurrent protection (OCP), overvoltage protection (OVP), and undervoltage lockout (UVLO)
    • SOT-23 (6) package

The TPS561300 is a 4.5V to 30V input voltage range, 1A, synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation, and 5ms internal soft start to reduce component count.

By integrating the MOSFETs and employing the SOT-23 package, the TPS561300 achieves the high power density and offers a small footprint on the PCB.

The TPS561300 operates in pulse frequency modulation for high light load efficiency and reduces the power loss. The frequency spread spectrum operation is introduced for EMI reduction.

Cycle-by-cycle current limit in both high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time.

The TPS561300 is a 4.5V to 30V input voltage range, 1A, synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation, and 5ms internal soft start to reduce component count.

By integrating the MOSFETs and employing the SOT-23 package, the TPS561300 achieves the high power density and offers a small footprint on the PCB.

The TPS561300 operates in pulse frequency modulation for high light load efficiency and reduces the power loss. The frequency spread spectrum operation is introduced for EMI reduction.

Cycle-by-cycle current limit in both high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time.
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* Data sheet TPS561300 4.5V to 30V, 1A, EMI-Friendly, Synchronous Step-Down Converter datasheet PDF | HTML 2025年 2月 25日
Certificate TPS561300EVM EU Declaration of Conformity (DoC) 2024年 12月 16日

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TPS561300EVM — TPS561300 evaluation module

The TPS561300 evaluation module (EVM) is a simple, easy-to-use, 1A synchronous step-down converter in a SOT236 package. The TPS561300EVM is a fully assembled and tested circuit for evaluating the TPS561300 step-down converter. The TPS561300EVM operates from 5V to 30V input, 24V nominal, and (...)
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SOT-23-THN (DDC) 6 Ultra Librarian
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