AAT4702 datasheet(4/20 Pages) SKYWORKS

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AAT4702

Auto-Restarting Current Limiting Load Switch with LDO Regulator

DATA SHEET

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201964A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 17, 2012

Electrical Characteristics1

VIN=3.6V;TA = -40oC to 85oC unless otherwise noted. Typical values are at TA = 25oC.

Symbol

Description

Conditions

Min

Typ

Max

Units

General

VIN(SW)

Input Voltage Range

Load Switch Section

2.4

5.5

VIN(REG)

Input Voltage Range

Stable Output

2.4

5.5

For VOUT Within Regulation Tolerance

VOUT + VDO

5.5

Operation Quiescent Current

VIN = 5V, ON = 0V, IOUT = 0

μA

ISD(OFF)

Shutdown Supply Current

ON = IN = 5.5V, VOUT = 0

μA

Load Switch

RDS(ON)

PMOS On-Resistance

VOUT = 5V, TA = 25°C

180

280

m

VOUT = 3.6V, TA = 25°C

220

320

VOUT = 2.4V, TA = 25°C

270

360

ID(OFF)

Switch Off-Leakage

ON = VIN

μA

ILIM

Current Limit

Rising edge; RSET = open

100

150

200

RSET_INT

Current Limit Internal Set Resistor

kΩ

VUVLO

Under-Voltage Lockout Threshold

Rising edge

1.8

2.4

VUVLO_HYS

Under-Voltage Lockout Hysteresis

0.2

LDO Regulator

VOUT

DC Output Voltage

VIN = 3.6V, IOUT = 10mA

1.764

1.8

1.836

IOUT

Output Current

VOUT = 1.8V

100

ISC

Short-Circuit Current

VOUT < 0.4V

350

VOUT/

VOUT*VIN

Line Regulation

VIN = 4.0 to 5.5V, TA = 25°C

0.14

0.4

%/V

VOUT/VOUT

Load Regulation

IOUT = 1mA to 100mA, VOUT = 1.8V,

TA = 25°C

1.0

1.65

VDO

Dropout Voltage

IOUT = 100mA, VOUT = 1.8V

300

RDS(REG)

Regulator Pass Element On-Resistance

VIN_REG = 3.6V

3.0



PSRR

Power Supply Rejection Ratio

100Hz

Output Voltage Temperature Coefﬁcient

PPM/°C

Logic

VEN(L)

ON Input Low Voltage

0.4

VEN(H)

ON Input High Voltage

2.4V < VIN ≤ 4.2V

2.0

4.2V < VIN < 5.5V

2.4

IEN

ON Input Leakage

VEN = 5.5V or 0V

0.5

2.0

μA

tAUTO

Auto-Restart Time

tBLANK

Over-Current Blanking Time

tRESP

Current Limit Response Time

VIN = 5V

0.4

μs

tON

Load Switch Turn On Time

VIN = 5V; RO = 10; CO = 1μF18

μs

tOFF

Load Switch Turn Off Time

VIN = 5V; RO = 10; CO = 1μF3

μs

TSD

Over-Temperature Shutdown Threshold

140

°C

THYS

Over-Temperature Shutdown Hysteresis

°C

1. The AAT4702 is guaranteed to meet performance over the -40oC to +85oC operating temperature range and is assured by design, characterization, and correlation with sta-

tistical process controls.

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