LP6283 datasheet(7/10 Pages) POWER

7 / 10 page

LP6283–00

Version 0.0

Jul.-2016

Email: marketing@lowpowersemi.com

www.lowpowersemi.com

Page 7 of 10

Preliminary Datasheet

LP6283

Electrical Characteristics

(VIN = 12V, TA = 25°C unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

General

IN2, INVL Input Voltage Range

Quiescent Current into INVL

Q-IN

LX not switching

0.02

Under-Voltage Lockout Threshold

UVLO

VIN Rising

5.4

6.6

Falling Hystersis

0.1

0.5

Switching Frequency

FSW

FSEL = GND

500

kHz

FSEL = VIN

750

Maximum Duty-Cycle

DMAX

Thermal Shutdown Threshold

TSD

160

°C

Boost Regulator

Output Voltage Range

VAVDD

VIN

FB1 Reference Voltage

VFB1

1.2375

1.25

1.2625

FB Line Regulation

VIN= 10.8V to 13.2V

0.15

0.2

%/V

Transconductance

Gm1

ΔI = ±2.5μA at VCOMP = 1V

120

μA/V

Voltage Gain

FB to COMP

1250

V/V

Current Limit

ILIM1

On-Resistance

RDS(ON)

100

250

Current-Sense Transresistance

RCS

0.25

V/A

Soft-start Charge Current

ISS

μA

Internal Soft-Start

TSS1

C8 < 220pF

Reference

REF Output Voltage

VREF

No external load,

1.25

REF Load Regulation

0 < IREF < 50

μA

REF Sink Current

REF in Regulation

μA

Buck Regulator

FB2 Reference Voltage

VFB2

1.2375

1.25

1.2625

FB2 Reference Voltage

VFB2

0.2

DC Line Regulation

10.8V < VIN < 13.2V

0.1

%/V

LX2-IN2 Switch MOS

RDS(ON)

150

300

LX2-PGND Switch MOS

RDS(ON)

Current Limit

ILIM2

2.5

3.2

Error Amplifier Transconductance

Gm2

100

μA/V

Error Amplifier Voltage Gain

700

V/V

LP6283 Datasheet(PDF) 7 Page - Lowpower Semiconductor inc

LP6283 Datasheet(HTML) 7 Page - Lowpower Semiconductor inc

Html Pages

1 2 3 4 5 6 7 8 9 10

Datasheet Download

Link URL