TPS542941

ACTIVE

4.5 V to 18 V input, 2 A / 3 A dual channel synchronous step-down converter, 1 ms fixed soft start

Texas Instruments TPS542941 Product Info

1 April 2026 3

Parameters

Rating	Catalog
Topology	Buck
Iout (max) (A)	2
Vin (max) (V)	18
Vin (min) (V)	4.5
Vout (max) (V)	7
Vout (min) (V)	0.76
Features	Enable, Light Load Efficiency, Power good, Soft Start Fixed, Synchronous Rectification
Control mode	D-CAP2
Operating temperature range (°C)	-40 to 85
Iq (typ) (A)	0.0013
Duty cycle (max) (%)	85

Package

HTSSOP (PWP)-16-32 mm² 5 x 6.4

Features

D-CAP2 Control Mode
- Fast Transient Response
- No External Parts Required For Loop
  Compensation
- Compatible with Ceramic Output
  Capacitors
Wide Input Voltage Range :
4.5 V to 18 V
Output Voltage Range :
0.76V to 7V
Highly Efficient Integrated FETs
Optimized for Low Duty Cycle
Applications
- 150 mΩ (High Side) and
  100 mΩ (Low Side)
High Initial Reference Accuracy
2A CH1 / 3A CH2 Continuous Load Current
Low-Side r_DS(on) Loss-Less Current Sensing
Fixed Soft Start : 1.0ms
Non-Sinking Pre-Biased Soft Start
Powergood
700 kHz Switching Frequency
Cycle-by-Cycle Over-Current Limit
Control
OCL/UVLO/TSD Protections
Hiccup Timer for Overload
Protection
Adaptive Gate Drivers with Integrated
Boost PMOS Switch
OCP Constant Due To Thermally Compensated
r_DS(on) with 4000ppm/°C
16-Pin HTSSOP, 16-Pin VQFN
Auto-Skip Eco-mode™ for High
Efficiency at Light Load

D-CAP2 Control Mode
- Fast Transient Response
- No External Parts Required For Loop
  Compensation
- Compatible with Ceramic Output
  Capacitors
Wide Input Voltage Range :
4.5 V to 18 V
Output Voltage Range :
0.76V to 7V
Highly Efficient Integrated FETs
Optimized for Low Duty Cycle
Applications
- 150 mΩ (High Side) and
  100 mΩ (Low Side)
High Initial Reference Accuracy
2A CH1 / 3A CH2 Continuous Load Current
Low-Side r_DS(on) Loss-Less Current Sensing
Fixed Soft Start : 1.0ms
Non-Sinking Pre-Biased Soft Start
Powergood
700 kHz Switching Frequency
Cycle-by-Cycle Over-Current Limit
Control
OCL/UVLO/TSD Protections
Hiccup Timer for Overload
Protection
Adaptive Gate Drivers with Integrated
Boost PMOS Switch
OCP Constant Due To Thermally Compensated
r_DS(on) with 4000ppm/°C
16-Pin HTSSOP, 16-Pin VQFN
Auto-Skip Eco-mode™ for High
Efficiency at Light Load

Description

The TPS542941 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS542941 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS542941 use the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS542941 to maintain high efficiency during lighter load conditions. The TPS542941 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V.

The TPS542941 is available in a 4.4mm × 5.0mm 16 pin TSSOP (PWP) package, and 4mm × 4mm 16-pin VQFN (RSA) package specified for an ambient temperature range from –40°C to 85°C.

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ELECTRONIC COMPONENTS
All In One Distributor

TPS542941

4.5 V to 18 V input, 2 A / 3 A dual channel synchronous step-down converter, 1 ms fixed soft start

Texas Instruments TPS542941 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS All In One Distributor

TPS542941

4.5 V to 18 V input, 2 A / 3 A dual channel synchronous step-down converter, 1 ms fixed soft start

Texas Instruments TPS542941 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS
All In One Distributor