L6401EH4939MR datasheet, PDF - EEWORLD Datasheet

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L6401EH4939MR: DescriptionFixed Positive LDO Regulator, 2 Output, 4.9V1, 3.9V2, CMOS, PDSO6, SOT-26, 6 PIN; CategoryPower/power management The power supply circuit; File Size510KB，7 Pages; ManufacturerLRC; Websitehttp://www.lrc.cn

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L6401EH4939MR Overview

Fixed Positive LDO Regulator, 2 Output, 4.9V1, 3.9V2, CMOS, PDSO6, SOT-26, 6 PIN

L6401EH4939MR Parametric

Parameter Name	Attribute value
Objectid	7158368092
package instruction	LSSOP,
Reach Compliance Code	unknown
ECCN code	EAR99
Maximum drop-back voltage 1	0.3 V
Maximum drop-back voltage 2	0.3 V
Maximum input voltage	8 V
Minimum input voltage	5.4 V
JESD-30 code	R-PDSO-G6
length	2.9 mm
Number of functions	1
Output times	2
Number of terminals	6
Maximum output voltage 1	4.998 V
Minimum output voltage 1	4.802 V
Nominal output voltage 1	4.9 V
Maximum output voltage 2	3.978 V
Minimum output voltage 2	3.822 V
Nominal output voltage 2	3.9 V
Package body material	PLASTIC/EPOXY
encapsulated code	LSSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Regulator type	FIXED POSITIVE MULTIPLE OUTPUT LDO REGULATOR
Maximum seat height	1.3 mm
surface mount	YES
technology	CMOS
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Maximum voltage tolerance	2%
width	1.6 mm

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LESHAN RADIO COMPANY, LTD.

HIGH SPEED

LOW DROPOUT

MIDDLE CURRENT VOLTAGE REGULATORS

Dual 300mA High Speed Low Dropout CMOS Voltage Regulators

L6401 Series

DESCRIPTION

The L6401 series are highly accurate, Dual , low noise, CMOS LDO voltage regulators.

Performance features of the series includes low output noise, high ripple rejection ratio, low dropout and

very fast turn-on times.

The L6401 includes a reference voltage source, error amplifiers, driver transistors, current limiters

and phase compensators internally. The L6401’s current limiter’s foldback circuit also operates as a

short protect for the output current limiter. The output voltage for each regulator is set independently by

laser trimming. Voltages are selectable in 50mV steps within a range of 1.3V to 5.0V.

The EN function allows the output of each regulator to be turned off independently, resulting in

greatly reduced power consumption. The L6401 series is available in the SOT-26 and USP-6B.

FEATURES

Output Voltage Range

Highly Accurate

Dropout Voltage

High Ripple Rejection

Low Power Consumption

Maximum Output Current

Standby Current

Internal protector

Small packages

1.3V to 6.0V (selectable in 50mV steps)

± 2%

200mV @ 100mA (3.0V type)

70dB (1 kHz)

25μA (TYP.)

300mA

less than 0.1μA

current limiter and short protector

SOT-26 and other required

Portable games

Portable AV equipment

APPLICATIONS

Mobile phones

Cordless phones and radio communication

equipment

PDAs

Cameras, Video cameras

PACKAGE

SOT-26

USP-6B

BLOCK DIAGRAM

EN1

ON/OFF

Control

Error

Amp1

Current

Limit

OUT1

VR1

each

circuit

R11

R12

VR2

each

circuit

Voltage

Reference

Error

Amp2

Current

Limit

OUT2

R21

EN2

ON/OFF

Control

R22

1/7

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