Product Summary

The TPS40001DGQ is a controller for low-voltage, non-isolated synchronous buck regulators. The TPS40001DGQ drives an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the TPS40001DGQ controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drive technology. The applications of the TPS40001DGQ include Networking Equipment, Telecom Equipment, Base Stations, Servers, DSP Power and Power Modules

Parametrics

TPS40001DGQ absolute maximum ratings: (1)Input voltage range, VIN, BOOT: VSW + 6.5V; COMP, FB, ILIM, SS/SD: -0.3 to 6V; SW: -0.7 to 10.5 V; SWT (SW transient < 50 ns): -2.5V; VDD: 6V; (2)Operating junction temperature range, TJ: -40 to 150℃; (3)Storage temperature, Tstg: -55 to 150℃; (4)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260℃.

Features

TPS40001DGQ features: (1)Operating Input Voltage 2.25 V to 5.5 V; (2)Output Voltage as Low as 0.7 V; (3)1% Internal 0.7 V Reference; (4)Predictive Gate Drive N-Channel MOSFET Drivers for Higher Efficiency; (5)Externally Adjustable Soft-Start and Overcurrent Limit; (6)Source-Only Current or Source/Sink Current; (7)Versions for Starting Into VOUT Pre-Bias; (8)10-Lead MSOP PowerPad Package for Higher Performance; (9)Thermal Shutdown; (10)Internal Boostrap Diode; (11)Fixed-Frequency, Voltage-Mode Control: 300-kHz.

Diagrams

TPS40001DGQ functional block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TPS40001DGQ
TPS40001DGQ
Texas Instruments
Voltage Mode PWM Controllers Lo-Inp Voltage Mode Sync buck Controller
Data Sheet
0-1: $1.78
1-25: $1.46
25-100: $1.32
100-250: $1.21
TPS40001DGQG4
TPS40001DGQG4
Texas Instruments
Voltage Mode PWM Controllers Lo-Inp Voltage Mode Sync buck Controller
Data Sheet
0-1: $1.78
1-25: $1.46
25-100: $1.32
100-250: $1.21
TPS40001DGQR
TPS40001DGQR
Texas Instruments
Voltage Mode PWM Controllers Lo-Inp Voltage Mode Sync buck Controller
Data Sheet
0-1970: $0.78
1970-2500: $0.78
2500-5000: $0.76
TPS40001DGQRG4
TPS40001DGQRG4
Texas Instruments
Voltage Mode PWM Controllers Lo-Inp Voltage Mode Sync buck Controller
Data Sheet
0-1850: $0.83
1850-2000: $0.80
2000-2500: $0.80
2500-5000: $0.76