Data Sheet

LT7826

analog.com

Rev. 0

4 of 19

SPECIFICATIONS

Table 1. Electrical Characteristics

(TA = 25°C, VVHIGH = 8V, VRUN = 4V, VMODE = 4V, unless otherwise specified.)

PARAMETER

SYMBOL

CONDITIONS

COMMENTS MIN

TYP

MAX UNITS

VHIGH Voltage Range

VVHIGH

0

17

V

VLOW Voltage Range

VVLOW

0

8.5

V

VHIGH Supply Current

IQ

VRUN = 0V

4

A

Undervoltage

Lockout Threshold

VUVLO

VINTVCC Falling

VINTVCC Rising

3.15

3.45

V

On-Resistance from

VHIGH to SWH

RON1

15

mΩ

On-Resistance from

SWH to VLOW, and

from VLOW to SWL

RON2,3

10

mΩ

On-Resistance from

SWL to PGND

RON4

12

mΩ

RUN Pin ON

Threshold

VRUN

VRUN rising

-40°C ≤ TJ ≤

125°C

1.1

1.2

1.35

V

RUN Pin ON

Hysteresis

VRUN_ hys

45

mV

RUN Pin Pull-Up

Current

IRUN

VRUN = 0V

0.55

µA

VCC LDO Voltage

No Load

VINTVCC

4

V

Standby Mode

Threshold

VMODE

VMODE Falling

VMODE Rising

1

1.2

V

PWM Frequency for

Synchronization

fSYNC

100

kHz

PWM Amplitude for

Synchronization

VSYNC

2.6

V

MODE Pin Pull-low

Impedance

RMODE

VMODE = 2.6V

1.6

MΩ

MODE Pin Max

Pull-Low current

IMODE_MAX

VMODE = 4V

1.86

A

Switching frequency

in Full-Power

Switching Mode

fS

500

kHz

FAULT Open-Drain

Pull-Down Resistance

R

FAULT

330

