Home Power management DC/DC power modules Power modules (integrated inductor)
Home
Power management
DC/DC power modules
Power modules (integrated inductor)

TPSM843A22E

ACTIVE

4-V to 18-V input, 12-A synchronous SWIFT™ step-down power module with extended temperature

Order now
Data sheet

TPSM843A22E

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -55 to 125 Topology Buck, Synchronous Buck Type Module Iout (max) (A) 12 Vin (min) (V) 4 Vin (max) (V) 18 Vout (min) (V) 0.5 Vout (max) (V) 7 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 2200 Features Adjustable Switch Frequency, Adjustable current limit, Enable, External Sync, Frequency synchronization, Over Current Protection, Overvoltage protection, Power good, Soft Start Adjustable, Temperature sensing, Under Voltage Protection, Under voltage lock out Control mode ACM Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -55 to 125 Topology Buck, Synchronous Buck Type Module Iout (max) (A) 12 Vin (min) (V) 4 Vin (max) (V) 18 Vout (min) (V) 0.5 Vout (max) (V) 7 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 2200 Features Adjustable Switch Frequency, Adjustable current limit, Enable, External Sync, Frequency synchronization, Over Current Protection, Overvoltage protection, Power good, Soft Start Adjustable, Temperature sensing, Under Voltage Protection, Under voltage lock out Control mode ACM Duty cycle (max) (%) 100
B3QFN (RDG) 25 48.75 mm² 7.5 x 6.5
  • Fixed-frequency, internally compensated advanced current mode (ACM) control
  • Integrated 6.5-mΩ and 2-mΩ MOSFETs, Inductor and basic passives
  • 4-V to 18-V input voltage range
  • 0.5-V to 7-V output voltage range
  • True differential remote sense amplifier (RSA)
  • 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, ±1% voltage reference accuracy over full temperature range
  • 1-ms, 2-ms, 4-ms, and 8-ms selectable soft-start times
  • Monotonic start-up into prebiased outputs
  • Enable with adjustable input undervoltage lockout
  • Power-good output monitor
  • Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
  • –55°C to 125°C operating junction temperature
  • 6.5-mm × 7.5-mm × 4.0-mm, 25-pin over-molded QFN package
  • Lead-free (RoHS compliant)
  • Pin compatible with the 20 A - TPSM843B22E and 16 A - TPSM843A26E
  • Fixed-frequency, internally compensated advanced current mode (ACM) control
  • Integrated 6.5-mΩ and 2-mΩ MOSFETs, Inductor and basic passives
  • 4-V to 18-V input voltage range
  • 0.5-V to 7-V output voltage range
  • True differential remote sense amplifier (RSA)
  • 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, ±1% voltage reference accuracy over full temperature range
  • 1-ms, 2-ms, 4-ms, and 8-ms selectable soft-start times
  • Monotonic start-up into prebiased outputs
  • Enable with adjustable input undervoltage lockout
  • Power-good output monitor
  • Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
  • –55°C to 125°C operating junction temperature
  • 6.5-mm × 7.5-mm × 4.0-mm, 25-pin over-molded QFN package
  • Lead-free (RoHS compliant)
  • Pin compatible with the 20 A - TPSM843B22E and 16 A - TPSM843A26E

The TPSM843A22E is a high-efficiency 18-V, 12-A synchronous buck module employing an internally compensated, fixed-frequency advanced current mode (ACM) control architecture, which while always operating under FCCM, generates output voltages from 0.5 V to 7 V. The module is capable of providing high efficiency while operating at a switching frequency up to 2.2 MHz. The module is in a 6.5-mm x 7.5-mm x 4-mm over-molded package, which makes it optimal for designs requiring a small solution size. 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.

The TPSM843A22E is a high-efficiency 18-V, 12-A synchronous buck module employing an internally compensated, fixed-frequency advanced current mode (ACM) control architecture, which while always operating under FCCM, generates output voltages from 0.5 V to 7 V. The module is capable of providing high efficiency while operating at a switching frequency up to 2.2 MHz. The module is in a 6.5-mm x 7.5-mm x 4-mm over-molded package, which makes it optimal for designs requiring a small solution size. 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.
filter Find other Power modules (integrated inductor)
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Data sheet TPSM843A22E 4-V to 18-V Input, 12-A, Buck Power Module with Advanced Current Mode Control and Extended Temperature datasheet PDF | HTML 23 Aug 2023

Design & development

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

Package Pins CAD symbols, footprints & 3D models
B3QFN (RDG) 25 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos