The TPS54395 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54395 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 TPS54395 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 TPS54395 to maintain high efficiency during lighter load conditions. The TPS54395 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 TPS54395 is available in a 4.4 mm × 5 mm 16-pin TSSOP (PWP) and 4 mm x 4 mm 16-pin VQFN (RSA) package, and is specified for an ambient temperature range from –40°C to 85°C.
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 7.0V
Highly Efficient Integrated FETs Optimized for
Low Duty Cycle Applications
90 mΩ (High Side) and 60 mΩ (Low Side)
High Initial Reference Accuracy
Supports Constant 3A at Both Channels
Low-Side rDS(on) Loss-Less Current Sensing
Adjustabel Soft Start
Non-Sinking Pre-Biased Soft Start
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/°C
16-Pin HTSSOP, 16-Pin VQFN
Auto-Skip Eco-mode™ for High Efficiency at Light Load
