DESCRIPTION

· The TPS201xA family of power distribution switches is designed for applications with heavy capacitive loads and potential short circuits.

· These devices feature 50-mΩ N-channel MOSFET high-side power switches controlled by logic enable compatible with 5-V and 3-V logic.

· Internal charge pump controls power-switch rise and fall times to minimize current surges during switching.

· The charge pump requires no external components and operates from supplies as low as 2.7 V.

· The switch limits output current to a safe level in constant-current mode when the load exceeds the current-limit threshold or a short is present.

· Thermal protection shuts off the switch to prevent damage from continuous heavy overloads and short circuits.

· Automatic recovery from thermal shutdown occurs once the device cools sufficiently.

· Internal circuitry ensures the switch remains off until valid input voltage is present.

FEATURES

· 33-mΩ (5-V Input) High-Side MOSFET Switch

· Short-Circuit and Thermal Protection

· Operating Range: 2.7 V to 5.5 V

· Logic-Level Enable Input

· Typical Rise Time: 6.1 ms

· Undervoltage Lockout

· Maximum Standby Supply Current: 10 μA

· No Drain-Source Back-Gate Diode

· Available in 8-pin SOIC and 14-Pin TSSOP Packages

· Ambient Temperature Range: –40°C to 85°C

· 2-kV Human-Body-Model, 200-V Machine-Model ESD Protection

APPLICATIONS

· Power distribution in systems with heavy capacitive loads

· Applications where short circuits are likely to be encountered

· Systems requiring thermal and short-circuit protection

· Low voltage supply systems (2.7 V to 5.5 V)

· Systems requiring logic-level enable control

· Applications needing minimal current surges during switching

· Systems requiring automatic recovery from thermal shutdown