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TPSM82903

ACTIVE

3-V to 17-V, 3-A, high-efficiency, low-IQ synchronous buck converter module with integrated inductor

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Data sheet

TPSM82903

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck, Synchronous Buck Type Module Iout (max) (A) 3 Vin (min) (V) 3 Vin (max) (V) 17 Vout (min) (V) 0.4 Vout (max) (V) 5.5 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 2500 Features Enable, Light Load Efficiency, Output discharge, Power good, Tracking Control mode DCS-Control Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck, Synchronous Buck Type Module Iout (max) (A) 3 Vin (min) (V) 3 Vin (max) (V) 17 Vout (min) (V) 0.4 Vout (max) (V) 5.5 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 2500 Features Enable, Light Load Efficiency, Output discharge, Power good, Tracking Control mode DCS-Control Duty cycle (max) (%) 100
uSIP (SIS) 11 8.4 mm² 3 x 2.8
  • High efficiency for wide duty cycle and load range
    • IQ: 4-µA typical
    • 62-mΩ high-side and 22-mΩ low-side RDS(ON)
  • 3-mm × 2.8-mm × 1.6-mm MicroSiP™ package
  • Up to 3-A continuous output current
  • ±0.9% feedback voltage accuracy across temp (–40°C to 125°C)
  • Configurable output voltage options:
    • VFB external divider: 0.6 V to 5.5 V
    • VSET internal divider: 16 options between 0.4 V and 5.5 V
  • DCS-Control topology with 100% mode
  • Flexibility through MODE/S-CONF pin
    • 2.5-MHz or 1.0-MHz switching frequency
    • Forced PWM or auto (PFM) power save mode with dynamic mode change option
    • Automatic efficiency enhancement (AEE)
    • Output discharge on/off
  • Highly flexible and easy to use
    • Optimized pinout for single-layer routing
    • Precise enable input
    • Power-good output
    • Adjustable soft start and tracking
  • No external bootstrap capacitor required
  • Create a custom design using the TPSM82903 using the WEBENCH Power Designer
  • High efficiency for wide duty cycle and load range
    • IQ: 4-µA typical
    • 62-mΩ high-side and 22-mΩ low-side RDS(ON)
  • 3-mm × 2.8-mm × 1.6-mm MicroSiP™ package
  • Up to 3-A continuous output current
  • ±0.9% feedback voltage accuracy across temp (–40°C to 125°C)
  • Configurable output voltage options:
    • VFB external divider: 0.6 V to 5.5 V
    • VSET internal divider: 16 options between 0.4 V and 5.5 V
  • DCS-Control topology with 100% mode
  • Flexibility through MODE/S-CONF pin
    • 2.5-MHz or 1.0-MHz switching frequency
    • Forced PWM or auto (PFM) power save mode with dynamic mode change option
    • Automatic efficiency enhancement (AEE)
    • Output discharge on/off
  • Highly flexible and easy to use
    • Optimized pinout for single-layer routing
    • Precise enable input
    • Power-good output
    • Adjustable soft start and tracking
  • No external bootstrap capacitor required
  • Create a custom design using the TPSM82903 using the WEBENCH Power Designer

The TPSM82903 is a highly efficient, small, and flexible synchronous step-down DC-DC converter MicroSiP package module that is easy to use. A selectable switching frequency of 2.5 MHz or 1.0 MHz allows the use of small components and provides fast transient response. The device supports high VOUT accuracy of ± 1% with the DCS-Control topology. The wide input voltage range of 3 V to 17 V supports a variety of nominal inputs, like 12-V supply rails, single-cell or multi-cell Li-Ion, and 5-V or 3.3-V rails.

The TPSM82903 can automatically enter power save mode (if auto PFM/PWM is selected) at light loads to maintain high efficiency. Additionally, to provide high efficiency at very small loads, the device has a low typical quiescent current of 4 µA. AEE, if enabled, provides high efficiency across VIN, VOUT, and load current. The device includes a MODE/Smart-CONF input to set the internal/external divider, switching frequency, output voltage discharge, and automatic power save mode or forced PWM operation.

The device is available in small 11-pin MicroSiP package measuring 3.0 mm × 2.8 mm × 1.6 mm with an integrated 1-µH inductor.

The TPSM82903 is a highly efficient, small, and flexible synchronous step-down DC-DC converter MicroSiP package module that is easy to use. A selectable switching frequency of 2.5 MHz or 1.0 MHz allows the use of small components and provides fast transient response. The device supports high VOUT accuracy of ± 1% with the DCS-Control topology. The wide input voltage range of 3 V to 17 V supports a variety of nominal inputs, like 12-V supply rails, single-cell or multi-cell Li-Ion, and 5-V or 3.3-V rails.

The TPSM82903 can automatically enter power save mode (if auto PFM/PWM is selected) at light loads to maintain high efficiency. Additionally, to provide high efficiency at very small loads, the device has a low typical quiescent current of 4 µA. AEE, if enabled, provides high efficiency across VIN, VOUT, and load current. The device includes a MODE/Smart-CONF input to set the internal/external divider, switching frequency, output voltage discharge, and automatic power save mode or forced PWM operation.

The device is available in small 11-pin MicroSiP package measuring 3.0 mm × 2.8 mm × 1.6 mm with an integrated 1-µH inductor.
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Technical documentation

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* Data sheet TPSM82903, 3-A, 3-V to 17-V, High Efficiency and Low IQ Buck Converter Module in a MicroSiPTM Package with an Integrated Inductor datasheet (Rev. B) PDF | HTML 10 Nov 2022
Certificate TPSM82903EVM EU Declaration of Conformity (DoC) (Rev. A) 21 Nov 2023
Application brief Solving Power Design Challenges in Medical Imaging Applications PDF | HTML 12 Jul 2023
Design guide High-Power Density 17-V, 3-A Buck Converter Module Reference Design PDF | HTML 18 Aug 2022
Certificate TPSM82903EVM EU RoHS Declaration of Conformity (DoC) 01 Apr 2022
Application note Detailed Comparison Between TPSM82903 and TPS82130 PDF | HTML 31 Mar 2022
User guide TPSM8290x Step-Down Converter Evaluation Module User's Guide PDF | HTML 01 Mar 2022

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPSM82903EVM — TPSM82903 evaluation module 3-V to 17-V input, 3-A, low-IQ buck converter with integrated inductor

The TPSM82903EVM evaluation module (EVM) facilitates the evaluation of the TPSM82903 buck converter module in a small 3.0-mm by 2.8-mm MicroSiP™ package with integrated inductor. The EVM outputs a 1.2-V output voltage from input voltages between 3 V and 17 V. The TPSM82903 is a (...)

User guide: PDF | HTML
Not available on TI.com
Simulation model

TPSM82903 PSpice Encrypted Transient Model

SLVMDY9.ZIP (306 KB) - PSpice Model
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Reference designs

TIDA-010255 — 230VAC, 2kW three-phase GaN inverter reference design for robotics and servo drives

This reference design demonstrates a high-efficiency 320-VDC input, three-phase power stage using six fast switching GaN-FETs with integrated driver, protection and temperature reporting with hot-side microcontroller control, especially for motor-integrated servo drives and robotics applications. (...)
Design guide: PDF
Reference designs

TIDA-050055 — High-power density 17-V, 3-A buck converter module with integrated inductor reference design

The TIDA-050055 reference design features the 3-V to 17-V VIN TPSM82903 buck converter with integrated inductor and was developed for applications that have very limited design space. The reference design steps the input voltage down to 1.2-V VOUT and is capable of delivering up to 3-A of load with (...)
Design guide: PDF
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uSIP (SIS) 11 Ultra Librarian
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