BAYLI B4151CK5-4.1, B4151CK5-4.0, B4151CK5-3.9, B4151CK5-3.8, B4151CK5-3.7 Datasheet

Bay Linear

Inspire the Linear Power

			150 mA CMOS Low Dropout LDO				B4151
					ON/OFF
	Description				Features

The B4151 series are a group of positive output voltage, five-pin regulators, which provide a high current even when the input/output voltage differential is small. Low power consumption and high accuracy is achieved though CMOS and programmable fuse technologies. Output voltage: 2.0V to 6.0V in 0.1V increments.

The B4151 consists of a high-precision voltage reference, an error correction circuit, and a current limited output driver. Key features include a Shutdown Pin that reduces supply current. With good transient responses, output remains stable even during load changes.

The ON/OFF pin enables the output to be turned off, resulting in reduced power consumption. Provided in SOT-25 (150mW) packages minimizes the usage of board real state.

•Maximum output current: 150 mA.

•Highly accurate: Output voltage +/- 2%(1%)

•Shutdown Supply Current 1 A

•Ground Current of Less than 20 A

•CMOS low power consumption.

0.20V at 160mA

0.38V at 80mA

•Small input/output differential:

•Shut Down Mode for Power Savings

•Improve pin-to-pin XC62GR-XX

•Pin-to-Pin Low Power to Bipolar LDO’s

Applications

•Battery Powered Equipment

•Notebook PC, Palmtops, PDA

•Portable Cameras and Video Recorders

•Reference Voltage Sources

•Cellular / GSM / PCS Phones

Pin Connection								Ordering Information
									Package		Part No.
									SOT-25		B4151CK5 -X.X
									X.X = Fixed Output Voltages from 2.0V to 6.0V
		SOT-25 (K5)
	Vout				NC
	5				4
	1			2	3

VSS VIN ON/OFF

Top View

Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone]

www.baylinear.com

B4151

Absolute Maximum Ratings

Parameter

Symbol

Ratings

Units

Input Voltage

VIN

12

V

Output Current

IOUT

500

mA

Output Voltage

Vout

VSS -0.3 to VIN 0.3

V

CE Output Voltage

VOUT

VSS -0.3 to VIN 0.3

V

Continual Total Power Dissipation

SOT-25

Pd

300

mW

SOT-89

500

Operating Ambient Temperature

TOPR

-30 to 80

° C

Storage Temperature

TSTG

-40 to 125

° C

Electrical Characteristics (Ta = 25° C, VIN = VOUT + 0.5V; unless otherwise noted)

Parameter

Conditions

MIN

TYP

MAX

UNIT

Output Voltage Accuracy

IO = 1mA

-1.4%

-

+1.4%

V

IO = 0 to 40mA

-2%

-

+2%

Line Regulation

∆ VOUT/∆ VIN-VOUT

IO= 40mA,

0.2

0.3

%/V

(VOUT + 0.1V)<VIN<10V

Load Regulation

VIN=Vout+1V

0.04

%/mV

1mA < IO < 80mA COUT = 1 F

Maximum Output Current

150

mA

Current Limit

1000

CE input voltage High

1.5

V

CE input voltage Low

0.25

V

CE input voltage High

VCE=VIN

1.0

kA

CE input voltage Low

VCE=VSS

-0.2

-0.05

0

kA

Input Stability

∆

Vout/∆ Topr .. Vout

Iout=40mA, 4V≤ Vin≤ 10V

0.2

0.3

%/V

Input Voltage

10.0

V

Ground Pin Current

Vin=Vce=Vout+1V

19

A

Vin=Vout+1V, Vce=Vss

0.1

Dropout Voltage

IO = 100mA

200

395

mV

IO = 150 mA

380

770

Output Voltage Temp.

± 100

° C

Marking Format

SOT-25

SERIES

CE

VOLTAGE

OUTPUT

EXWW

B4151R

H

ON

L

OFF

E = B4151

B4151P

H

OFF

Variables

L

ON

X = Voltage Codes

WW = Work Week Code

B = 2.0

F =

3.3

SOT-25 = 01 to 99

C = 2.5

G =

3.5

D = 2.8

H =

5.0

E = 3.0

Bay Linear, Inc

2478 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone]

www.baylinear.com