DGN−8

www.ti.com

FEATURES

APPLICATIONS

TPS2068

DGNPACKAGE

(TOP VIEW)

TPS2069

DGNPACKAGE

(TOP VIEW)

GND

IN

EN

IN

OUT

OUT

OUT

OC

GND

IN

EN

IN

OUT

OUT

OUT

OC

DESCRIPTION

TPS2069

1.5 A

TPS2068

1.5 A

TPS2060, TPS2064

TPS2068, TPS2069

SLVS553E – MARCH 2005 – REVISED APRIL 2007

CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES

• Heavy Capacitive Loads

• 70-mΩ High-Side MOSFET

• Short-Circuit Protections

• 1.5-A Continuous Current

• Thermal and Short-Circuit Protection

• Accurate Current Limit (1.6 A min, 2.6 A max)

• Operating Range: 2.7 V to 5.5 V

• 0.6-ms Typical Rise Time

• Undervoltage Lockout

• Deglitched Fault Report (OC)

• No OC Glitch During Power Up

• 1-µA Maximum Standby Supply Current

• Reverse Current Blocking

• TPS2060/64 Temperature Range: 0°C to 70°C

• TPS2068/69 Temperature Range:

-40

°C to 85°C

• ESD Protection

• UL Listed – File No. E169910

The TPS206x power-distribution switches are intended for applications where heavy capacitive loads and

short-circuits are likely to be encountered. This device incorporates 70-m

Ω N-channel MOSFET power switches

for power-distribution systems that require single or dual power switches in a single package. Each switch is

controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to control the

power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no

external components and allows operation from supplies as low as 2.7 V.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output

current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low.

When continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the

junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a

thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch

remains off until valid input voltage is present. Current limit is typically 2.1 A.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PowerPad is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2005–2007, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.