TPSM843A22

AKTIV

Synchron-SWIFT™-Abwärtswandler-Stromversorgungsmodul, 4 bis 18 V Eingangsspannung, 12 A, erweiterter

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Datenblatt

document-pdfAcrobat TPSM843A22 4-V to 18-V Input, 12-A, Buck Power Module with Internally Compensated, Advanced Current Mode Control datasheet (Englisch) PDF | HTML

TPSM843A22

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Topology

Buck, Synchronous Buck

Iout (max) (A)

12

Vin (max) (V)

18

Vin (min) (V)

4

Vout (max) (V)

7

Vout (min) (V)

0.5

Features

Adjustable current limit, Adjustable soft start, Adjustable switching frequency, Enable, External Sync, Frequency synchronization, Overcurrent protection, Overvoltage protection, Power good, Temperature sensing, UVLO, Undervoltage protection

Operating temperature range (°C)

-40 to 125

Type

Module

Duty cycle (max) (%)

100

Control mode

ACM

Switching frequency (min) (kHz)

500

Switching frequency (max) (kHz)

2200

Rating

Catalog

Topology

Buck, Synchronous Buck

Iout (max) (A)

12

Vin (max) (V)

18

Vin (min) (V)

4

Vout (max) (V)

7

Vout (min) (V)

0.5

Features

Adjustable current limit, Adjustable soft start, Adjustable switching frequency, Enable, External Sync, Frequency synchronization, Overcurrent protection, Overvoltage protection, Power good, Temperature sensing, UVLO, Undervoltage protection

Operating temperature range (°C)

-40 to 125

Type

Module

Duty cycle (max) (%)

100

Control mode

ACM

Switching frequency (min) (kHz)

500

Switching frequency (max) (kHz)

2200

B3QFN (RDG)

25

48.75 mm² (7.5 mm × 6.5 mm)

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 20 A - TPSM843B22 and 16 A - TPSM843A26

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 20 A - TPSM843B22 and 16 A - TPSM843A26

The TPSM843A22 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.

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Technische Dokumentation

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Design und Entwicklung

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