Features: • Operation Over 4.5-V to 28-V Input Range
• Programmable Fixed-Frequency up to 1-MHz Voltage-Mode Controller
• Predictive Gate Drive™ With Anti-Cross Conduction Circuitry
• <1% Internal 700-mV Reference
• Internal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs
• 16-Pin PowerPAD™ Package
• Thermal Shutdown Protection
• TPS40070: Source Only
• TPS40071: Source/Sink
• Programmable High-Side Sense Short Circuit Protection
Application• Power Modules
• Networking/Telecom
• Industrial
• Servers
Pinout
Specifications
| |
TPS40070 TPS40071 |
UNIT |
| VDD Input voltage range |
VDD, ILIM |
30 |
V |
| COMP, FB, KFF, PGD, LVBP |
0.3 to 6 |
| SW |
0.3 to 40 |
| SW, transient < 50 ns |
2.5 |
| VOUT Output voltage range |
COMP, KFF, RT, SS |
0.3 to 6 |
| VBOOST |
50 |
| DBP |
10.5 |
| LVBP |
6 |
| IOUT Output current source |
LDRV, HDRV |
1.5 |
A |
| IOUT Output current sink |
LDRV, HDRV |
2.0 |
| KFF |
10 |
| Output current |
RT |
1 |
mA |
| LVBP |
1.5 |
| TJ Operating junction temperature range |
40 to 125 |
|
| Tstg Storage temperature |
55 to 150 |
| Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds |
260 |
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
DescriptionThe TPS40071 is a mid voltage, wide input (4.5 V to 28 V), synchronous, step-down converter.
The TPS40071 offers design flexibility with a variety of user programmable functions, including; soft-start, UVLO, operating frequency, voltage feed-forward and high-side FET sensed short circuit protection.
The TPS40071 incorporates MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFETs. Gate drive logic incorporates predictive anti-cross conduction circuitry to prevent simultaneous high-side and synchronous rectifier conduction, while minimizing to eliminating current flow in the body diode of the SR FET. The TPS40071 allows the supply output to sink current at all times.
The TPS40070 implements a source-only power supply.
TPS40071 Data Sheet
