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TPSM843820

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4-V to 18-V input, advanced current mode, 8-A synchronous SWIFT™ step-down power module

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Data sheet

TPSM843820

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Module Iout (max) (A) 8 Vin (min) (V) 4 Vin (max) (V) 18 Vout (min) (V) 0.5 Vout (max) (V) 1.8 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 2200 EMI features Low parasitic Hotrod packaging Features Adjustable current limit, Enable, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Control mode ACM/AECM Duty cycle (max) (%) 94
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Module Iout (max) (A) 8 Vin (min) (V) 4 Vin (max) (V) 18 Vout (min) (V) 0.5 Vout (max) (V) 1.8 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 2200 EMI features Low parasitic Hotrod packaging Features Adjustable current limit, Enable, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Control mode ACM/AECM Duty cycle (max) (%) 94
uSIP (SIT) 15 12.25 mm² 3.5 x 3.5
  • Fixed-frequency, internally-compensated Advanced Current Mode (ACM) control
  • Small form factor 3.5mm × 3.5mm × 1.6mm, 15-pin DFM package MicroSiP™ power module
  • High-efficiency, integrated 25mΩ and 6.5mΩ MOSFETs, inductor and basic passives
  • 4V to 18V input voltage range
  • 0.5V to 1.8V output voltage range
  • Three selectable PWM ramp options to optimize the control loop performance
  • Five selectable switching frequencies: 500kHz, 750kHz, 1MHz, 1.5MHz, and 2.2MHz
  • Synchronizable to an external clock
  • 0.5V, ±0.5% voltage reference accuracy over full temperature range
  • Selectable soft-start times: 0.5ms, 1ms, 2ms, and 4ms
  • Monotonic start-up into prebiased outputs
  • Selectable current limits to support lower current operation
  • Enable with adjustable input undervoltage lockout
  • Power-good output monitor
  • Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
  • Pin-to-pin compatible with 3A - TPSM8433206A - TPSM843620
  • – 40°C to 125°C operating junction temperature
  • Fixed-frequency, internally-compensated Advanced Current Mode (ACM) control
  • Small form factor 3.5mm × 3.5mm × 1.6mm, 15-pin DFM package MicroSiP™ power module
  • High-efficiency, integrated 25mΩ and 6.5mΩ MOSFETs, inductor and basic passives
  • 4V to 18V input voltage range
  • 0.5V to 1.8V output voltage range
  • Three selectable PWM ramp options to optimize the control loop performance
  • Five selectable switching frequencies: 500kHz, 750kHz, 1MHz, 1.5MHz, and 2.2MHz
  • Synchronizable to an external clock
  • 0.5V, ±0.5% voltage reference accuracy over full temperature range
  • Selectable soft-start times: 0.5ms, 1ms, 2ms, and 4ms
  • Monotonic start-up into prebiased outputs
  • Selectable current limits to support lower current operation
  • Enable with adjustable input undervoltage lockout
  • Power-good output monitor
  • Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
  • Pin-to-pin compatible with 3A - TPSM8433206A - TPSM843620
  • – 40°C to 125°C operating junction temperature

TPSM843820 is a highly efficient, small, and flexible synchronous step-down DC-DC converter in a MicroSiP power module package that is easy to use. The module operates up to 18V input with fixed-frequencies that are resistor adjustable by system designer. The embedded IC is internally compensated which reduces external components and design size. The integrated high-frequency capacitor reduces the transient peak at switching node.

The TPSM843820 module employs an internally compensated, fixed-frequency advanced current mode control. The device is capable of providing high efficiency while running at a switching frequency up to 2.2MHz. The fixed frequency controller can operate from 500kHz to 2.2MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, selectable soft-start times, monotonic start-up into prebiased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.

TPSM843820 is a highly efficient, small, and flexible synchronous step-down DC-DC converter in a MicroSiP power module package that is easy to use. The module operates up to 18V input with fixed-frequencies that are resistor adjustable by system designer. The embedded IC is internally compensated which reduces external components and design size. The integrated high-frequency capacitor reduces the transient peak at switching node.

The TPSM843820 module employs an internally compensated, fixed-frequency advanced current mode control. The device is capable of providing high efficiency while running at a switching frequency up to 2.2MHz. The fixed frequency controller can operate from 500kHz to 2.2MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, selectable soft-start times, monotonic start-up into prebiased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.
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Technical documentation

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* Data sheet TPSM843820 4V to 18V Input, 8A Synchronous SWIFT Step-Down Converter MicroSiP Power Module With Integrated Inductor and Internally Compensated Advanced Current Mode Control datasheet (Rev. A) PDF | HTML 01 Dec 2023
Application brief Solving Power Design Challenges in Semiconductor Test and ATE Applications PDF | HTML 02 Aug 2024
Application note Detailed Comparison Between TPSM843620 Family and TPS543620 Family PDF | HTML 20 Nov 2023

Design & development

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

Evaluation board

TPSM843620EVM — TPSM843620 evaluation module for synchronous buck converter

The TPSM843620 evaluation module (EVM) is a synchronous buck power module designed to provide up to a 6 A output and is rated for 4 V to 18 V. The high-side and low-side MOSFETs are incorporated inside the TPSM843620 package along with the gate-drive circuitry, inductor and basic passives. The low (...)
User guide: PDF | HTML
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Simulation model

TPSM843820 PSpice Transient Model

SLUM898.ZIP (202 KB) - PSpice Model
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Simulation model

TPSM843820 SIMPLIS Model

SLUM876.ZIP (944 KB) - SIMPLIS Model
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Calculation tool

CALC-TOOL-TPSM843X20 — CALC-TOOL-TPSM843X20

TPSM843320 TPSM843620 TPSM843820 Calculator Tool
Supported products & hardware

Supported products & hardware

Products
Power modules (integrated inductor)
TPSM843320 — 4-V to 18-V input, advanced current mode, 3-A synchronous SWIFT™ step-down power module TPSM843320E — 4V to 18V input, 3A synchronous SWIFT™ step-down power module with extended temperature TPSM843620 — 4-V to 18-V input, advanced current mode, 6-A synchronous SWIFT™ step-down power module TPSM843620E — 4V to 18V input, 6A synchronous SWIFT™ step-down power module with extended temperature TPSM843820 — 4-V to 18-V input, advanced current mode, 8-A synchronous SWIFT™ step-down power module TPSM843820E — 4V to 18V input, 8A synchronous SWIFT™ step-down power module with extended temperature
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