Product Summary

The TPS40190DRCR is a cost-optimized synchronous buck controller that operates from 4.5 V to 15 V nominally, and implements a fixed frequency voltage mode power supply. The controller uses an adaptive anti-cross conduction scheme to prevent both the high-side and the rectifier MOSFET to be turned on at the same time, preventing shoot through current in the two MOSFETs. The TPS40190DRCR provides strong drivers to minimize switching losses in the power stage, reducing heat build up in the MOSFETs and allowing larger MOSFETs to be used without undue switching time penalty. The applications of TPS40190DRCR are Cable modem CPE, Digital Set Top Box, Graphics/Audio Cards, Entry-level and Mid-Range Servers.

Parametrics

TPS40190DRCR absolute maximum ratings: (1)VDD: –0.3 to 16.5V; (2)SW: –5 to 22V; (3)BOOST-SW, HDRV-SW (differential from BOOST or HDRV to V VDD Input voltage range SW): –0.3 to 6V; (4)COMP: –0.3 to 3V; (5)FB, BP5, LDRV, ENABLE: –0.3 to 6V; (6)TJ Operating junction temperature range: –40 to 125℃; (7)Tstg Storage temperature: –55 to 150℃.

Features

TPS40190DRCR features: (1)Input Operating Voltage Range: 4.5 V to 15 V; (2)Reference 0.591 V ±1%; (3)Voltage Mode Control; (4)Pre-Bias Ouput Safe; (5)Fixed Switching Frequency of 300 kHz; (6)Small 3 mm 3 mm, 10-Pin SON Package; (7)Bootstrapped Drivers for N-Channel MOSFET; (8)Adaptive Anti-Cross Conduction; (9)Internal Bootstrap Diode; (10)1.2-A Drivers for Decreased Switching Loss.

Diagrams

TPS40190DRCR block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TPS40190DRCR
TPS40190DRCR
Texas Instruments
DC/DC Switching Controllers Low Pin Count Sync Buck DC/DC Cntrlr
Data Sheet
0-1: $1.73
1-25: $1.33
25-100: $1.21
100-250: $1.00
TPS40190DRCRG4
TPS40190DRCRG4
Texas Instruments
DC/DC Switching Controllers Low Pin Count Sync Buck DC/DC Cntrlr
Data Sheet
0-2150: $0.80
2150-3000: $0.76
3000-6000: $0.73