1FEATURES
2• 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 D–
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
rDS(on) with 4000ppm/℃
• 16-Pin HTSSOP, 16-Pin VQFN
• Auto-Skip Eco-mode™　for High Efficiency at
Light Load

APPLICATIONS
• Point-of-Load Regulation in Low Power
Systems for Wide Range of Applications
– Digital TV Power Supply
– Networking Home Terminal
– Digital Set Top Box (STB)
– DVD Player/Recorder
– Gaming Consoles and Other

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 x 4mm 16-pin
VQFN (RSA) package specified for an ambient
temperature range from –40°C to 85°C.