5 V, 3 A Logic Controlled

High-Side Power Switch

Data Sheet

ADP197

Rev. C

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FEATURES

Low RDSON of 12 mΩ

Low input voltage range: 1.8 V to 5.5 V

Quick output discharge (QOD) circuit (ADP197-02)

3 A continuous operating current at 70°C

1.2 V logic-compatible enable input

Low 18 μA quiescent current, VIN < 3 V

Low 31 μA quiescent current, VIN = 4.2 V

Overtemperature protection

Ultralow shutdown current: <1 μA

Ultrasmall 1.0 mm × 1.5 mm, 0.5 mm pitch, 6-ball WLCSP

Tiny 2.0 mm × 2.0 mm × 0.55 mm, 0.65 mm pitch, 6-lead LFCSP

APPLICATIONS

Mobile phones

Digital cameras and audio devices

Portable and battery-powered equipment

TYPICAL APPLICATIONS CIRCUIT

GND

EN

LOAD

VIN

VOUT

ADP197

ADP197-02

ONLY

CHARGE PUMP

AND SLEW RATE

CONTROL

OFF

ON

+

–

OVERTEMPERATURE

PROTECTION

Figure 1.

GENERAL DESCRIPTION

The ADP197 is a high-side load switch designed for operation

between 1.8 V and 5.5 V. This load switch provides power domain

isolation, which helps extend battery operation. The device

contains a low on-resistance, N-channel MOSFET that supports

more than 3 A of continuous current and minimizes power loss.

The low 18 μA quiescent current and ultralow shutdown current

make the ADP197 ideal for battery-operated portable equipment.

The built-in level shifter for enable logic makes the ADP197

compatible with many processors and GPIO controllers.

Overtemperature protection circuitry activates if the junction

temperature exceeds 125°C, thereby protecting itself and

downstream circuits from potential damage.

The ADP197-02 incorporates an internal quick output

discharge (QOD) circuit to discharge the output capacitance

when the ADP197-02 output is disabled

In addition to operating performance, the ADP197 WLCSP

package occupies minimal printed circuit board (PCB) space

with an area of less than 1.5 mm2 and a height of 0.60 mm.

The ADP197 is available in an ultrasmall 1.0 mm × 1.5 mm,

0.5 mm pitch, 6-ball WLCSP and a 2.0 mm × 2.0 mm ×

0.55 mm, 0.65 mm pitch, 6-lead LFCSP.