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1. DESCRIPTION
The TPS4007x is a mid voltage, wide input (4.5 V to 28 V), synchronous, step-down converter. The TPS4007x 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 TPS4007x 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.
2. FEATURES
1. Operation Over 4.5-V to 28-V Input Range
2. Programmable Fixed-Frequency up to 1-MHz Voltage-Mode Controller
3. Predictive Gate Drive™ With Anti-Cross Conduction Circuitry
4. <1% Internal 700-mV Reference
5. Internal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs
6. 16-Pin PowerPAD™ Package
7. Thermal Shutdown Protection
8. TPS40070: Source Only
9. TPS40071: Source/Sink
10. Programmable High-Side Sense Short Circuit Protection
3. APPLICATIONS
1. Power Modules
2. Networking/Telecom
3. PCI Express
4. Industrial
5. Servers
4. Pin configuration
5. PACKAGE OUTLINE
