MPI4040R3-2R2-R datasheet(7/40 Pages) TI1

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LM53602, LM53603

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SNVSAR0 – NOVEMBER 2016

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Electrical Characteristics (continued)

Limits apply to the recommended operating junction temperature range of –40°C to 150°C, unless otherwise noted. Minimum

and maximum limits are verified through test, design, or statistical correlation. Typical values represent the most likely

parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise stated the following conditions

apply: VIN = 13.5 V.

PARAMETER

TEST CONDITIONS

MIN(1)

TYP

MAX(1)

UNIT

IZC

Zero-cross current limit

FPWM = 0 V

–0.02

INEG

Negative current limit

FPWM = 3.3 V

–1.5

Rdson

Power switch on-resistance

High-side MOSFET resistance

135

290

mΩ

Low-side MOSFET resistance

125

FSW

Switching frequency

VIN = 3.8 V to 18 V

1.85

2.1

2.35

MHz

VIN = 36 V

1.2

FSYNC

Synchronizing frequency range

1.9

2.1

2.3

MHz

VCC

Internal VCC voltage

VBIAS = 3.3 V

3.15

TSD

Thermal shutdown thresholds

Rising

162

178

°C

Hysteresis, below

(1)

This parameter is valid once the input voltage has risen above VIN-operate and the device has started up.

(2)

Includes current into the EN pin, but does not include current due to the external resistive divider in adjustable output versions. See

Input Supply Current section.

7.6 System Characteristics

The following specifications apply only to the typical application circuit, shown in Figure 15 with nominal component values.

Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. The

parameters in this table are not ensured.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIN-MIN

Minimum input voltage for Vout to

stay within ±2% of regulation(1)

VOUT = 3.3 V, IOUT = 3 A

3.9

VOUT = 3.3 V, IOUT = 1 A

3.55

Regulation

Line Regulation

VOUT = 5 V, VIN = 8 V to 36 V, IOUT = 3 A

VOUT = 3.3 V, VIN = 6 V to 36 V, IOUT = 3

Load Regulation : Auto Mode

VOUT = 5 V, VIN = 12 V, IOUT = 10 µA to 3

VOUT = 3.3 V, VIN = 12 V, IOUT = 10 µA to

3 A

Load Regulation : FPWM Mode

VOUT = 5 V, VIN = 12 V, IOUT = 10 µA to 3

VOUT = 3.3 V, VIN = 12 V, IOUT = 10 µA to

3 A

ISUPPLY

Input supply current when in

regulation(2)

VIN = 13.5 V, VOUT = 3.3 V, IOUT = 0 A

µA

VIN = 13.5 V, VOUT = 5 V, IOUT = 0 A

VDROP

Dropout voltage (VIN – VOUT)

5-V Option:

VOUT = 4.95 V, IOUT = 3 A, FSW < 1.85

MHz

0.7

5-V Option:

VOUT = 5 V, IOUT = 3 A, FSW = 1.85 MHz

1.8

3.3-V Option:

VOUT = 3.27 V, IOUT = 3 A, FSW < 1.85

MHz

0.65

3.3-V Option:

VOUT = 3.3 V, IOUT = 3 A, FSW = 1.85

MHz

1.8

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