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TPSM843320

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4-V to 18-V input, advanced current mode, 3-A synchronous SWIFT™ step-down power module

Product details

Iout (max) (A) 3 Vin (min) (V) 4 Vin (max) (V) 18 Vout (min) (V) 0.5 Vout (max) (V) 5.5 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 Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 1.2 Regulated outputs (#) 1 Switching frequency (max) (kHz) 2200 Switching frequency (min) (kHz) 500 Duty cycle (max) (%) 94 Type Module Rating Catalog Control mode ACM/AECM
Iout (max) (A) 3 Vin (min) (V) 4 Vin (max) (V) 18 Vout (min) (V) 0.5 Vout (max) (V) 5.5 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 Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 1.2 Regulated outputs (#) 1 Switching frequency (max) (kHz) 2200 Switching frequency (min) (kHz) 500 Duty cycle (max) (%) 94 Type Module Rating Catalog Control mode ACM/AECM
USIP (SIT) 15 See data sheet
  • Fixed-frequency, internally-compensated advanced current mode (ACM) control
  • Small form factor 3.5-mm × 3.5-mm × 1.6-mm, 15-pin DFM package MicroSiP power module
  • High-efficiency, integrated 25-mΩ and 6.5-mΩ MOSFETs, inductor and basic passives
  • 4-V to 18-V input voltage range
  • 0.5-V to 5.5 -V output voltage range
  • Three selectable PWM ramp options to optimize the control loop performance
  • Five selectable switching frequencies: 500 kHz, 750 kHz, 1 MHz, 1.5 MHz, and 2.2 MHz
  • Synchronizable to an external clock
  • 0.5-V, ±0.5% voltage reference accuracy over full temperature range
  • Selectable soft-start times: 0.5 ms, 1 ms, 2 ms, and 4 ms
  • 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 8 A - TPSM843820 6 A - TPSM843620
  • – 40°C to 125°C operating junction temperature
  • Fixed-frequency, internally-compensated advanced current mode (ACM) control
  • Small form factor 3.5-mm × 3.5-mm × 1.6-mm, 15-pin DFM package MicroSiP power module
  • High-efficiency, integrated 25-mΩ and 6.5-mΩ MOSFETs, inductor and basic passives
  • 4-V to 18-V input voltage range
  • 0.5-V to 5.5 -V output voltage range
  • Three selectable PWM ramp options to optimize the control loop performance
  • Five selectable switching frequencies: 500 kHz, 750 kHz, 1 MHz, 1.5 MHz, and 2.2 MHz
  • Synchronizable to an external clock
  • 0.5-V, ±0.5% voltage reference accuracy over full temperature range
  • Selectable soft-start times: 0.5 ms, 1 ms, 2 ms, and 4 ms
  • 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 8 A - TPSM843820 6 A - TPSM843620
  • – 40°C to 125°C operating junction temperature

TPSM843320 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 18-V 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 TPSM843320 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 2.2 MHz. The fixed frequency controller can operate from 500 kHz to 2.2 MHz 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.

TPSM843320 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 18-V 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 TPSM843320 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 2.2 MHz. The fixed frequency controller can operate from 500 kHz to 2.2 MHz 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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* Data sheet TPSM843320 4-V to 18-V Input, 3-A SynchronousSWIFTStep-Down ConverterMicroSiPPower Module With Integrated Inductor and Internally Compensated Advanced Current Mode Control datasheet (Rev. A) PDF | HTML 01 Dec 2023
Application note Detailed Comparison Between TPSM843620 Family and TPS543620 Family PDF | HTML 20 Nov 2023
Application brief Solving power design challenges in oscilloscope applications PDF | HTML 31 Oct 2023

Design & development

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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

TPSM843320 SIMPLIS Model

SLUM877.ZIP (1020 KB) - SIMPLIS Model
Calculation tool

CALC-TOOL-TPSM843X20 CALC-TOOL-TPSM843X20

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Supported products & hardware

Supported products & hardware

Products
Buck modules (integrated inductor)
TPSM843620 4-V to 18-V input, advanced current mode, 6-A synchronous SWIFT™ step-down power module TPSM843320 4-V to 18-V input, advanced current mode, 3-A synchronous SWIFT™ step-down power module TPSM843820 4-V to 18-V input, advanced current mode, 8-A synchronous SWIFT™ step-down power module TPSM843620E 4V to 18V input, 6A synchronous SWIFT™ step-down power module with extended temperature TPSM843320E 4V to 18V input, 3A synchronous SWIFT™ step-down power module with extended temperature TPSM843820E 4V to 18V input, 8A synchronous SWIFT™ step-down power module with extended temperature
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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USIP (SIT) 15 View options

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