Calculation tool
TPSM843B22-A26-A22-CALC — CALC-TPSM843B22-A26-A22
TPSM843B22 TPSM843A22 TPSM843A26 Calculator
TPSM843B22
4-V to 18-V input, advanced current mode, 20-A synchronous SWIFT™ step-down power module
Data sheet
TPSM843B22
- 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, ±0.5% 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
- –40°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 16 A - TPSM843A26 and 12 A - TPSM843A22
The TPSM843B22 is a high-efficiency 18-V, 20-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.
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Technical documentation
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View all 5 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPSM843B22 4-V to 18-V Input, 20-A, Buck Power Module with Internally Compensated, Advanced Current Mode Control datasheet (Rev. B) | PDF | HTML | 18 Jul 2023 |
| Application brief | Solving Power Design Challenges in Semiconductor Test and ATE Applications | PDF | HTML | 02 Aug 2024 | |
| Application brief | Solving Power Design Challenges in Medical Imaging Applications | PDF | HTML | 12 Jul 2023 | |
| EVM User's guide | TPSM843B22EVM Step-Down Module Evaluation Module User's Guide | PDF | HTML | 17 Apr 2023 | |
| Certificate | TPSM843B22EVM EU RoHS Declaration of Conformity (DoC) (Rev. A) | 11 Apr 2023 |
Design & development
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Evaluation board
TPSM843B22EVM — TPSM843B22 synchronous buck evaluation module
The TPSM843B22 evaluation module (EVM) is a synchronous buck power module designed to provide up to a 20 A output and is rated for 4 V to 18 V. The high-side and low-side MOSFETs are incorporated inside the TPSM843B22 package along with the gatedrive circuitry, inductor and basic (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| B3QFN (RDG) | 25 | Ultra Librarian |
Ordering & quality
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Support & training
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