LR1801L-25-SH2-R datasheet(4/5 Pages) UTC

Part #	LR1801L-25-SH2-R

Description	1A FAST ULTRA LOW DROPOUT LINEAR REGULATOR

Download	5 Pages

Scroll/Zoom	100%

Manufacturer	UTC [Unisonic Technologies]

Direct Link	http://www.utc-ic.com

Logo

4 / 5 page

LR1801

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 5

www.unisonic.com.tw

QW-R502-A03.d



ELECTRICAL CHARACTERISTICS (Cont.)

PARAMETER

SYMBOL TEST CONDITIONS

MIN

TYP

MAX

UNIT

ON/OFF Pin Input Current “H”

ISH

VIN=VOUT(S)+1V,VON/OFF=5.5V

-0.1

0.1

uA

ON/OFF Pin Input Current “L”

ISL

VIN=VOUT(S)+1V,VON/OFF=0V

-0.1

0.1

uA

Ripple Rejection

|RR|

VIN=VOUT(S)+1V,

f=1khz,

△

Vrip=0.5Vrms,

IOUT=100mA

1.2V≤VOUT(S)<3.0V

65

dB

3.0V≤VOUT(S) ≤3.5V

60

Thermal Shutdown detection

temperature

TSD

Junction temperature

150

°C

Thermal Shutdown release

temperature

TSR

Junction temperature

120

°C

Notes: 1. The LR1801 output must be diode-clamped to ground. If used in a dual-supply system where the regulator

load is returned to a negative supply.

2. Between the VIN and VOUT terminals the output PMOS structure contains a diode. This diode is reverse

biased normally. If the voltage at the output terminal is forced to be higher than the voltage at the input

terminal this diode will get forward biased. This diode can withstand 1Amp of peak current and 200mA of

DC current typically.

3. Devices must be derated based on package thermal resistance at elevated temperatures.

4. VOUT(S): Specified output voltage

VOUT(E): Actual output voltage

Output voltage when fixing IOUT(=100ma) and inputting VOUT(S)+1.0V

5. Vdrop=VIN1-(VOUT3×0.98)

VOUT3 is the output voltage when VIN=VOUT(S)+1.0V and IOUT=300mA, 1000mA.

6. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the

output current.

7.The change in temperature [mV/°C] is calculated using the following equation.

()

/

1000

OUT

OUT S

AA

OUT

VV

mV

C

V

ppm

C

TT

V













 







 





 

8.The output current can be at least this value.

Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be

paid to the power dissipation of the package when the output current is large.

This specification is guaranteed by design.

Similar Part No. - LR1801L-25-SH2-R

Manufacturer	Part #	Datasheet	Description
Unisonic Technologies	LR1801	371Kb / 11P	1.0A FAST ULTRA LOW DROPOUT LINEAR REGULATOR
Unisonic Technologies	LR1801	371Kb / 11P	1.0A FAST ULTRA LOW DROPOUT LINEAR REGULATOR

More results

Similar Description - LR1801L-25-SH2-R

Manufacturer	Part #	Datasheet	Description
Unisonic Technologies	LR1108	141Kb / 6P	1A FAST ULTRA LOW DROPOUT LINEAR REGULATOR
	LR1108	250Kb / 6P	1A FAST ULTRA LOW DROPOUT LINEAR REGULATOR
	LR2126	210Kb / 7P	1A FAST ULTRA LOW DROPOUT LINEAR REGULATOR
	LR2126	267Kb / 7P	1A FAST ULTRA LOW DROPOUT LINEAR REGULATOR
BCD Semiconductor Manuf...	AZ2940	200Kb / 18P	1A ULTRA LOW DROPOUT LINEAR REGULATOR
BCD Semiconductor Manuf...	AZ2940	179Kb / 18P	1A ULTRA LOW DROPOUT LINEAR REGULATOR
Intersil Corporation	ISL80121-5	493Kb / 11P	1A Ultra Low Dropout Linear Regulator
HTC Korea TAEJIN Techno...	TJ4940	178Kb / 8P	1A Ultra Low Dropout Linear Regulator
HTC Korea TAEJIN Techno...	TJ3964	336Kb / 11P	1A Ultra Low Dropout Linear Regulator
Eutech Microelectronics...	EUP7961	344Kb / 12P	1A Ultra Low-Dropout Linear Regulator

More results

LR1801L-25-SH2-R Datasheet(PDF) 4 Page - Unisonic Technologies

LR1801L-25-SH2-R Datasheet(HTML) 4 Page - Unisonic Technologies

Similar Part No. - LR1801L-25-SH2-R

Similar Description - LR1801L-25-SH2-R

Html Pages

1 2 3 4 5

Datasheet Download

Link URL