TPS5511

Features:

· Over Voltage Protection and Lock Out for 5 V, 3.3 V, and 12 V
· Fault Protection Output with Open Drain Output Stage
· Open Drain Power Good Output Signal for Power Good Input, 5 V and 3.3 V
· 300 ms Power Good Delay
·2.3 ms PSON Control to FPO Turn-Off Delay
· 38 ms PSON Control Debounce
· 73 ms Width Noise Deglitches
· Wide Power Supply Voltage Range from 4 V to 15 V

Pinout




Specifications

Supply voltage, VCC, (see Note1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 V
Output voltage, VO (FPO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 V
Output voltage, VO (PGO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V
Supply current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 mA
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see Dissipation Rating Table
Operating junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to 125°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Lead temperature, 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C


† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device.  hese are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended  perating conditions" is not  implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltages are with respect to the device GND terminal.

Description

The TPS5511 is designed to minimize the external components of personal-computer switching power supply systems. It provides protection circuits, power good indicator, fault protection output (FPO), and PSON control. OVP (over voltage protection) monitors 5 V, 3.3 V, and 12 V (12 V OV detects via VCC terminal). When an OV condition is detected, the PGO (power good output) is asserted low and FPO is latched high. PSON of TPS5511 from low to high resets the protection latch. There is a 2.3-ms turn-off delay from PSON to FPO. There is no delay during turn on.

Power good feature of TPS5511 monitors PGI, 5 V and 3.3 V under voltages and issues a power good signal when they are ready.

The TPS5511 is characterized for operation from TJ = 40°C to 125°C junction temperature.