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

Bay Linear, Inc

2478 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone] www.baylinear.com

150 mA CMOS Low Dropout LDO

B4151

ON/OFF

Pin Connection

Ordering Information

Package Part No.

SOT-25 B4151CK5 -X.X

X.X = Fixed Output Voltages from 2.0V to 6.0V

Description

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.

Features

• Maximum output current: 150 mA.

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

• Shutdown Supply Current 1µµµµA

• Ground Current of Less than 20µµµµA

• 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

Bay Linear

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Inspire the Linear Power

Ins

p

ire the Linear PowerInspire the Linear Power

Ins

p

ire the Linear Power

SOT-25 (K5)

Top View

ON/OFF

V

IN

V

SS

32

1

45

V

out

NC

SOT-25 (K5)

Top View

ON/OFF

V

IN

V

SS

32

1

45

V

out

NC

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 I

OUT

500 mA

Output Voltage V

out

VSS -0.3 to VIN 0.3 V

CE Output Voltage V

OUT

V

SS

-0.3 to VIN 0.3 V

Continual Total Power Dissipation SOT-25

SOT-89

Pd

300
500

mW

Operating Ambient Temperature T

OPR

-30 to 80

°

C

Storage Temperature T

STG

-40 to 125

°C

Electrical Characteristics (T

a

= 25

°°°°

C, V

IN

= V

OUT +

0.5V; unless otherwise noted)

Parameter Conditions MIN TYP MAX UNIT

IO = 1mA -1.4% - +1.4%

Output Voltage Accuracy

I

O

= 0 to 40mA -2% - +2%

V

Line Regulation ∆V

OUT

/∆VIN-V

OUT

I

O

= 40mA,

(V

OUT

+ 0.1V)<VIN<10V

0.2 0.3 %/V

Load Regulation

VIN=V

out

+1V

1mA < I

O

< 80mA C

OUT

= 1µF

0.04 %/mV

Maximum Output Current 150
Current Limit 1000

mA

CE input voltage High 1.5 V
CE input voltage Low

0.25 V

CE input voltage High VCE=V

IN

1.0

µ

kA

CE input voltage Low VCE=V

SS

-0.2 -0.05 0

µ

kA

Input Stability ∆V

out

/∆T

opr .

. V

out

I

out

=40mA, 4V≤V

in

≤

10V

0.2 0.3

%/V

Input Voltage 10.0 V
Ground Pin Cur rent

V

in=Vce=Vout

+1V

V

in=Vout

+1V, Vce=V

ss

19

0.1

µ

A

IO = 100mA 200 395

Dropout Voltage

I

O

= 150 mA

380 770

mV

Output Voltage Temp.

±

100

°

C

Marking Format
SOT-25

EXWW

E = B4151

Variables

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

SERIES CE VOLTAGE

OUTPUT

B4151R H L ON

OFF

B4151P H L OFF

ON

Bay Linear, Inc

2478 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone] www.baylinear.com

B4151

SOT-25 Packaging Outline

L

A1

C

A2

A

D

B (5 PLACES)

H

E

e1

e

MILLIMETERS

SYMBOL

0

0.90

0.30

0.80 REF

2.70

0.10

1.40

1.70

0.95 BSC.

MIN 0.2

2.50

MIN. MAX MIN. MAX.

A

A1

A2

B
C
D
E

e

e1

H
L

0

.035

.012

.0315 REF

.106

.004

.055

.066

.037 BSC.

MIN .0078

.098

0.10

1.30

0.50

3.10

0.35

1.80

2.10

3.00

.004

.051

.019

.122

.0137

.071

.082
.118

INCHES

NOTE:

1. REFER TO APPLICABLE

2. CONTROLLING DIMENTION : MILLIMETER

3. PACKAGE SURFACE FINISHING TO BE SMOOTH
FINISH.

Bay Linear, Inc

2478 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone] www.baylinear.com

B4151

STANDARD CIRCUIT

Advance Information

-

These data sheets contain descriptions of products that are in development. The specifications are based on the engineering calculations,

computer simulations and/ or initial prototype evaluation.

Preliminary Information

-

These data sheets contain minimum and maximum specifications that are based on the initial device characterizations. These limits are

subject to change upon the completion of the full characterization over the specified temperature and supply voltage ranges.

The application circuit examples are only to explain the representative applications of the devices and are not intended to guarantee any circuit
design or permit any industrial property right to other rights to execute. Bay Linear takes no responsibility for any problems related to any
industrial property right resulting from the use of the contents shown in the data book. Typical parameters can and do vary in different
applications. Customer’s technical experts must validate all operating parameters including “ Typical” for each customer application.

LIFE SUPPORT AND NUCLEAR POLICY

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implants into the body to support or sustain life, in aircraft, space equipment, submarine, or nuclear facility applications without
the specific written consent of Bay Linear President.

V

IN

C

IN

Tantanium

V

IN

CE

V

SS

V

OUT

R

L

CL 10µf
Tantanium

V

IN

C

IN

Tantanium

V

IN

CE

V

SS

V

OUT

R

L

CL 10µf
Tantanium