BA3257FP datasheet, PDF - EEWORLD Datasheet

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BA3257FP: DescriptionFixed/Adjustable Positive LDO Regulator, 1.3V Dropout, BIPolar, PSSO4, TO-252, 5 PIN; CategoryPower/power management The power supply circuit; File Size213KB，2 Pages; ManufacturerROHM Semiconductor; Websitehttps://www.rohm.com/; Environmental Compliance

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BA3257FP Overview

Fixed/Adjustable Positive LDO Regulator, 1.3V Dropout, BIPolar, PSSO4, TO-252, 5 PIN

BA3257FP Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	ROHM Semiconductor
Parts packaging code	TO-252
package instruction	TO-252, 5 PIN
Contacts	4
Reach Compliance Code	compliant
ECCN code	EAR99
Adjustability	FIXED/ADJUSTABLE
Maximum drop-back voltage 1	1.3 V
Nominal dropback voltage 1	1.1 V
Maximum absolute input voltage	15 V
JESD-30 code	R-PSSO-G4
JESD-609 code	e3/e2
length	6.5 mm
Maximum grid adjustment rate	0.015%
Maximum grid regulation rate (%/V)	0.13
Maximum load regulation	0.02%
Maximum load regulation (%)	1.6%
Number of functions	1
Output times	2
Number of terminals	4
Maximum operating temperature	85 °C
Minimum operating temperature
Maximum output current 1	1 A
Nominal output voltage 1	3.3 V
Maximum output voltage 2	3.3 V
Minimum output voltage 2	1.25 V
Package body material	PLASTIC/EPOXY
encapsulated code	TO-252
Encapsulate equivalent code	SMSIP5H,.37,50TB
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Regulator type	FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	2.5 mm
surface mount	YES
technology	BIPOLAR
Terminal surface	TIN/TIN COPPER
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	SINGLE
Maximum time at peak reflow temperature	10
Maximum voltage tolerance	2%
width	5.5 mm

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Dual Low Drop Out Regulator

BA3257FP/HFP

Description

BA3257FP/HFP is a power supply IC in which

2-output series regulators are incorporated into

a power package (TO252-5/HRP-5). 2-outputs

are 3.3V and a variable output.(Above 1.5V can

be set.) Each current is 1A. Ceramic capacitor

is available for output.

Dimension (Unit : mm)

BA3257FP

1.5±0.2

6.5±0.2

+0.2

5.1

−0.1

2-C0.5

2.3±0.2

0.5±0.1

Ceramic Capacitor Available

5.5±0.2

1.5

0.8

0.5

1.27

0.5±0.1

1.0±0.2

1.017±0.2

Features

1) 3.3V/1A and Variable(1.25V standard)/1A

2) Output ceramic capacitor available

3) Output voltage accuracy :+/-2%

4) Built-in over-current and thermal protection circuit

5) TO252-5 package and HRP-5 package

TO252-5

BA3257HFP

9.39±0.125

8.82±0.1

(5.59)

1.905±0.1

(7.49)

2.5

1

2

3

4

5

9.5±0.5

2

3

4

5

Applications

HDD/DVD

1.2575

1

4.5°

+

5.5°

−

4.5°

+

0.1

0.27

−

0.05

S

0.08±0.05

1.72

0.73±0.1

D 0 .0 8 S

HRP-5

Absolute Maximum Ratings (Ta=25˚C)

Parameter

Power supply voltage

Power

dissipation

HRP-5

TO252-5

Symbol

V

CC

Pd

Topr

Tstg

0

-55

Limits

15

2300

1300

~

+85

+150

∗1

∗2

Unit

V

mW

Operating temperature range

Storage temperature range

∗1

Derating : 18.4mW/˚C for operation above Ta=25˚C PCB (70mmx70mm, t=1.6mm) glass epoxy mounting.

∗2

Derating : 10.4mW/˚C for operation above Ta=25˚C PCB (70mmx70mm, t=1.6mm) glass epoxy mounting.

˚C

Recommended Operating Conditions (Ta=25˚C)

Parameter

Symbol

V

CC

Min.

Power supply voltage

4.75

Typ.

-

Max.

14.0

Unit

V

0.835±0.2

1.523±0.15

10.54±0.13

8.0±0.13

BA3257FP Related Products

	BA3257FP	BA3257HFP
Description	Fixed/Adjustable Positive LDO Regulator, 1.3V Dropout, BIPolar, PSSO4, TO-252, 5 PIN	Fixed/Adjustable Positive LDO Regulator, 1.3V Dropout, BIPolar, PSSO5, HRP-5
Is it lead-free?	Lead free	Lead free
Is it Rohs certified?	conform to	conform to
Maker	ROHM Semiconductor	ROHM Semiconductor
Parts packaging code	TO-252	MODULE
package instruction	TO-252, 5 PIN	HRP-5
Contacts	4	5
Reach Compliance Code	compliant	compliant
ECCN code	EAR99	EAR99
Adjustability	FIXED/ADJUSTABLE	FIXED/ADJUSTABLE
Maximum drop-back voltage 1	1.3 V	1.3 V
Nominal dropback voltage 1	1.1 V	1.1 V
Maximum absolute input voltage	15 V	15 V
JESD-30 code	R-PSSO-G4	R-PSSO-G5
JESD-609 code	e3/e2	e3/e2
length	6.5 mm	9.39 mm
Maximum grid adjustment rate	0.015%	0.015%
Maximum grid regulation rate (%/V)	0.13	0.13
Maximum load regulation	0.02%	0.02%
Maximum load regulation (%)	1.6%	1.6%
Number of functions	1	1
Output times	2	2
Number of terminals	4	5
Maximum operating temperature	85 °C	85 °C
Maximum output current 1	1 A	1 A
Nominal output voltage 1	3.3 V	3.3 V
Maximum output voltage 2	3.3 V	3.3 V
Minimum output voltage 2	1.25 V	1.25 V
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
Encapsulate equivalent code	SMSIP5H,.37,50TB	SMSIP5H,.41,67TB
Package shape	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260	260
Certification status	Not Qualified	Not Qualified
Regulator type	FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	2.5 mm	2.005 mm
surface mount	YES	YES
technology	BIPOLAR	BIPOLAR
Terminal surface	TIN/TIN COPPER	TIN/TIN COPPER
Terminal form	GULL WING	GULL WING
Terminal pitch	1.27 mm	1.72 mm
Terminal location	SINGLE	SINGLE
Maximum time at peak reflow temperature	10	10
Maximum voltage tolerance	2%	2%
width	5.5 mm	8 mm

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