Product details

Vin (Min) (V) 28 Vin (Max) (V) 3.8 Vout (Min) (V) 0.8 Vout (Max) (V) 22 Iout (Max) (A) 3 Iq (Typ) (uA) 20 Switching frequency (Min) (kHz) 500 Switching frequency (Max) (kHz) 500 Features Enable, Light Load Efficiency, Over Current Protection, Soft Start Fixed, Spread Spectrum, Synchronous Rectification Rating Catalog Regulated outputs (#) 1 Control mode Current Mode Duty cycle (Max) (%) 98
Vin (Min) (V) 28 Vin (Max) (V) 3.8 Vout (Min) (V) 0.8 Vout (Max) (V) 22 Iout (Max) (A) 3 Iq (Typ) (uA) 20 Switching frequency (Min) (kHz) 500 Switching frequency (Max) (kHz) 500 Features Enable, Light Load Efficiency, Over Current Protection, Soft Start Fixed, Spread Spectrum, Synchronous Rectification Rating Catalog Regulated outputs (#) 1 Control mode Current Mode Duty cycle (Max) (%) 98
SOT-5X3 (DRL) 8
  • Configured for a wide range of applications
    • 3.8-V to 28-V input voltage range
    • 0.8-V to 22-V output voltage range
    • 3-A continuous output current
    • 0.8V ± 1.5% reference voltage (25°C)
    • –40°C to 150°C operating junction temperature
    • Integrated 76-mΩ and 32-mΩ MOSFETs
    • 20-µA low quiescent current (typical)
    • Maximum 98% duty cycle operation
    • Precision EN threshold
  • Ease of use and small solution size
    • Peak current control mode with internal compensation
    • Pulse frequency modulation (PFM) for high light-load efficiency
    • 500-kHz fixed switching frequency
    • EMI friendly with frequency spread spectrum
    • Support start-up with prebiased output
    • Cycle-by-cycle OC limit for both high-side and low-side MOSFETs
    • Non-latched protections for OTP, OCP, OVP, UVP, and UVLO
    • 1.6-mm × 2.1-mm SOT583 package
  • Create a custom design using the TPS563300 with the WEBENCH Power Designer
  • Configured for a wide range of applications
    • 3.8-V to 28-V input voltage range
    • 0.8-V to 22-V output voltage range
    • 3-A continuous output current
    • 0.8V ± 1.5% reference voltage (25°C)
    • –40°C to 150°C operating junction temperature
    • Integrated 76-mΩ and 32-mΩ MOSFETs
    • 20-µA low quiescent current (typical)
    • Maximum 98% duty cycle operation
    • Precision EN threshold
  • Ease of use and small solution size
    • Peak current control mode with internal compensation
    • Pulse frequency modulation (PFM) for high light-load efficiency
    • 500-kHz fixed switching frequency
    • EMI friendly with frequency spread spectrum
    • Support start-up with prebiased output
    • Cycle-by-cycle OC limit for both high-side and low-side MOSFETs
    • Non-latched protections for OTP, OCP, OVP, UVP, and UVLO
    • 1.6-mm × 2.1-mm SOT583 package
  • Create a custom design using the TPS563300 with the WEBENCH Power Designer

The TPS563300 is a high-efficiency, easy-to-use synchronous buck converter with a wide input voltage range of 3.8 V to 28 V, and supports up to 3-A continuous output current and 0.8-V to 22-V output voltage.

The device employs fixed-frequency peak current control mode for fast transient response and good line and load regulation. The optimized internal loop compensation eliminates external compensation components over a wide range of output voltage and operation frequency. Pulse frequency modulation (PFM) mode maximizes the light load efficiency. The low quiescent current feature is beneficial for long battery life time in low-power operation. The device also has a frequency spread spectrum feature, which helps with lowering down EMI noise.

The device provides complete protections including OTP, OVP, UVLO, cycle-by-cycle OC limit, and UVP with hiccup mode. This device is in a small SOT583 (1.6-mm × 2.1-mm) package with 0.5-mm pin pitch, and has an optimized pinout for easy PCB layout and promotes good EMI performance.

The TPS563300 is a high-efficiency, easy-to-use synchronous buck converter with a wide input voltage range of 3.8 V to 28 V, and supports up to 3-A continuous output current and 0.8-V to 22-V output voltage.

The device employs fixed-frequency peak current control mode for fast transient response and good line and load regulation. The optimized internal loop compensation eliminates external compensation components over a wide range of output voltage and operation frequency. Pulse frequency modulation (PFM) mode maximizes the light load efficiency. The low quiescent current feature is beneficial for long battery life time in low-power operation. The device also has a frequency spread spectrum feature, which helps with lowering down EMI noise.

The device provides complete protections including OTP, OVP, UVLO, cycle-by-cycle OC limit, and UVP with hiccup mode. This device is in a small SOT583 (1.6-mm × 2.1-mm) package with 0.5-mm pin pitch, and has an optimized pinout for easy PCB layout and promotes good EMI performance.

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Technical documentation

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Type Title Date
* Data sheet TPS563300 3.8-V to 28-V, 3-A Synchronous Buck Converter in SOT583 Package datasheet PDF | HTML 01 Jul 2022
Certificate TPS563300EVM EU RoHS Declaration of Conformity (DoC) 22 Mar 2022
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019

Design & development

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Simulation model

TPS563300 PSpice Unencrypted Transient Model TPS563300 PSpice Unencrypted Transient Model

Simulation tool

PSPICE-FOR-TI PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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SOT-5X3 (DRL) 8 View options

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