Datasheet B4250CR-5.9, B4250CR-5.8, B4250CR-5.7, B4250CR-5.6, B4250CR-5.5 Datasheet (BAYLI)

Bay Linear, Inc

2418 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone] www.baylinear.com

250 mA CMOS Low Dr opout LDO

B4250

Pin Connection

Ordering Information

-40°°°°C to +125°°°°C

Package Part No.

SOT-23 B4250CK3 -X.X
SOT-89 B4250CR-X.X

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

Description

The B4250 series are a group of positive output voltage,
three-pin r egulators, which pr ovide a high current eve n
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 B4250 consists of a high-precision voltage
reference, an error correction circuit, and a current
limited output driver.

Available in SOT-23 (150mW) and SOT-89 (500mW)
packages minimizing the usage of board real state.

Features

• Maximum output current: 250 mA.

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

• CMOS low power consumption.

• Small input/output differential:

0.38V at 160mA (Vout=3.3V)

0.12V at 100mA (Vout=5V)

• Pin-to-Pin Improve XC62FP/XC6201

Applications

• Battery Powered Equipment

• Notebook PC, Palmtops, PDA

• Portable Cameras and Video Recorders

• Reference Voltage Sources

SOT-23-3 (K3)

Top View

V

out

V

in

V

ss

3

2

1

Top View

SOT-89 (R)

1

2

3

Vss Vin Vout

2

Vin

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Inspire the Linear Power

Bay Linear, Inc

2418 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone] www.baylinear.com

B4250

Absolute Maximum Ratings

Parameter Symbol Ratings Units

Input Voltage VIN 12 V
Output Current I

OUT

500 mA

Output Voltage V

OUT

V

SS

-0.3 to VIN 0.3 V
Continual Total
Power Dissipation

SOT-23
SOT-89

Pd

150
500

mW

Operating Ambient Temperature T

OPR

-30 to 80

°

C

Storage Temperature T

STG

-40 to 125

°C

Electrical Characteristics (Ta = 25

°°°°

C, V

IN

= V

OUT +

1V; unless otherwise noted)

Parameter Conditions MIN TYP MAX UNIT

3.3V IO = 40mA, VIN = 4.3V 3.234 3.300 3.366

Output Voltage

5.0V I

O

= 40mA, VIN = 6.0V 4.900 5.000 5.100

V

3.3V IO = 40mA, 4.3V<VIN<10V

Line Regula tion ∆V

OUT

/∆VIN-V

OUT

5.0V I

O

= 40mA, 6.0V<VIN<10V

0.2 0.3 %V

3.3V VIN 4.3V, 1mA < IO < 80mA 45 90

Load Regulation

5.0V VIN 6V, 1mA < I

O

< 100mA 40 80

mV

3.3V VIN = 4.3V 1.0 2.9

Current Consumption

5.0V V

IN

= 6.0V 2.0 4.5

µ

A

3.3V IO = 160 mA 0.4 0.7

0.12 0.3

Dropout Voltage

5.0V

I

O

= 100 mA

200 mA

0.38 0.6

V

Marking Format

SOT-23

SOT-89

CXWW

B4250

XZYWW

C = B4250

Variables

X = Voltage Codes

Z = Production

Code

Y = Year WW = Work Week Code

B = 2.0 F = 3.3

01 = 2001 SOT-23 = 01 to 99

C = 2.5 G = 3.5

02 = 2002 SOT-89 = 01 to 52

D = 2.8 H = 5.0

03 = 2004

E = 3.0

etc

Bay Linear, Inc

2418 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone] www.baylinear.com

B4250

Output Voltage vs. Output Current

B4250-3.0

Output Voltage vs. Input Voltage

B4250-3.0

Dropout Voltage vs. Output Current

B4250-3.0

Bay Linear, Inc

2418 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone] www.baylinear.com

B4250

Supply Current vs. Input Voltage (B4250-3.0)

Input Transient Response (B4250-3.0)

Load Transient Response (B4250-3.0) Ripple Rejection Ratio (B4250-3. 0)

Bay Linear, Inc

2418 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone] www.baylinear.com

B4250

STANDARD CIRCUIT

SOT-23

0.015 - 0.018

(0.381 - 0.457)

0.020 - 0.024

(0.508 - 0.610)

0.110 - 0.120

(2.794 - 3.048)

0.001 - 0.004

(0.025 - 0.102)

0.030 - 0.041

(0.762 - 1.041)

0.018 - 0.024

(0.457 - 0.610)

0.070 - 0.080

(1.778 - 2.032)

0.035 - 0.040

(0.889 - 1.016)

0.047 - 0.055

(1.194 - 1.397)

0.083 - 0.098

(2.108 - 2.489)

0.003 - 0.005

(0.076 - 0.127)

V

IN

C

IN

Tantanium

V

IN

V

SS

V

OUT

R

L

CL 1

µ

Tantanium

V

IN

C

IN

Tantanium

V

IN

V

SS

V

OUT

R

L

CL 1

µ

Tantanium

F

V

IN

C

IN

Tantanium

V

IN

V

SS

V

OUT

R

L

CL 1

µ

Tantanium

V

IN

C

IN

Tantanium

V

IN

V

SS

V

OUT

R

L

CL 1

µ

Tantanium

F

Bay Linear, Inc

2418 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone] www.baylinear.com

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.

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