Datasheet Texas Instruments TPS40195PWRG4 — Ficha de datos

TPS40195
www.ti.com SLUS720E – FEBRUARY 2007 – REVISED JULY 2012 4.5-V TO 20-V SYNCHRONOUS BUCK CONTROLLER WITH SYNCHRONIZATION AND
POWER GOOD
Check for Samples: TPS40195 FEATURES CONTENTS 1 Input Operating Voltage Range: 4.5 V to 20 V
Output Voltage as Low as 0.591 V В±0.5%
180В° Bi-Directional Out-of-Phase
Synchronization
Internal 5-V Regulator
High and Low MOSFET Sense Overcurrent
100 kHz to 600 kHz Switching Frequency
Enable and Power Good
Programmable UVLO and Hysteresis
Thermal Shutdown at 150В°C
Selectable Soft-Start
Pre-Bias Output Safe 2 Electrical Characteristics 3 Typical Characteristics 5 Terminal Information 10 Application Information 12 Design Example 21 Additional References 34 DESCRIPTION
The TPS40195 is a flexible synchronous buck
controller that operates from a nominal 4.5 V to 20 V
supply. This controller implements voltage mode
control with the switching frequency adjustable from
100 kHz to 600 kHz. Flexible features found on this
device
include
selectable …