ISL70003ASEH datasheet(13/36 Pages) INTERSIL

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ISL70003ASEH

FN8746.0

August 5, 2015

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ERROR AMPLIFIER

DC Gain

(Note 12)80

Gain-bandwidth Product

(Note 12)7

MHz

Maximum Output Voltage

VIN = 5.5V

3.5

4.2

Slew Rate

(Note 12)8.5

V/µs

Feedback (FB) Input Leakage Current

VFB = 0.6V, PVINx = 13.2V

250

Offset Voltage (VIO)

-3

POWER BLOCKS

CQFP Individual Upper FET rDS(ON)

PVINx = 3.0V, PVIN to LX

170

420

700

mΩ

PVINx = 5.5V, PVIN to LX

120

310

600

mΩ

CQFP Individual Lower FET rDS(ON)

PVINx = 3.0V, LX to GND

240

455

mΩ

PVINx = 5.5V, LX to GND

210

425

mΩ

LXx Output Leakage

EN = LXx = GND, single LXx output

µA

EN = GND, LXx = PVINx, Single LXx Output

µA

Dead Time

Within a single power block or between power

blocks (Note 12)

POWER-GOOD SIGNAL

Rising Threshold

VFB as a % of VREF

107

111

115

Rising Hysteresis

VFB as a % of VREF

3.5

Falling Threshold

VFB as a % of VREF

Falling Hysteresis

VFB as a % of VREF

3.5

Power-good Drive

PVIN = 3V, PGOOD = 0.4V, EN = GND

7.2

Power-good Leakage

PVIN = PGOOD = 13.2V

µA

PROTECTION FEATURES

Undervoltage Protection

Undervoltage Trip Threshold

VFB as a % of VREF, test mode

Undervoltage Recovery Threshold

VFB as a % of VREF, test mode

Overcurrent Protection

Overcurrent Accuracy

ROCSETA, B = 6kΩ (IOC = 0.6A/LX) VIN = 12V

0.43

0.6

0.77

A/LX

Electrical Specifications Unless otherwise noted, PVINx = AVDD = DVDD = 3V - 13.2V; GND = AGND = DGND = PGNDx = SGND = 0V;

POR_VIN = 0.65V; SYNC = LXx = Open Circuit; PGOOD is pulled up to VREFD with a 3k resistor; REF is bypassed to GND with a 220nF capacitor; SS is

bypassed to GND with a 100nF capacitor; IOUT = 0A; TA = TJ = +25°C. (Note 4). Boldface limits apply across the operating temperature range, -55°C to

+125°C; over a total ionizing dose of 100krad(Si) with exposure at a high dose rate of 50 to 300rad(Si)/s; or over a total ionizing dose of 50krad(Si) with

exposure at a low dose rate of <10mrad(Si)/s. (Continued)

PARAMETER

TEST CONDITIONS

MIN

(Note 13)TYP

MAX

(Note 13)UNIT

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