BH33RB1WGUT datasheet(2/9 Pages) ROHM

Part #	BH33RB1WGUT

Description	1ch 150mA CMOS LDO Regulators

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Manufacturer	ROHM [Rohm]

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BH□□RB1WGUT series

Technical Note

2/8

www.rohm.com

2011.01 - Rev.C

●

Absolute maximum ratings

Parameter

Symbol

Ratings

Unit

Applied supply voltage

VMAX

-0.3 to +6.5

V

Power dissipation

Pd

530

*1

mW

Operating temperature range

Topr

-40 to +85

°C

Storage temperature range

Tstg

-55 to +125

°C

*1: Reduce by 5.3 mW/

C over 25C, when mounted on a glass epoxy PCB (7 mm  7 mm  0.8 mm).

●

Recommended operating ranges (not to exceed Pd)

Parameter

Symbol

Ratings

Unit

Power supply voltage

VIN

2.5 to 5.5

V

Output current

IOUT

0 to 150

mA

●

Recommended operating conditions

Parameter

Symbol

Ratings

Unit

Conditions

Min.

Typ.

Max.

Input capacitor

CIN

0.7

*2

1.0

—

µF

The use of ceramic capacitors is

recommended.

Output capacitor

CO

0.7

*2

1.0

—

µF

The use of ceramic capacitors is

recommended.

*2: Make sure that the output capacitor value is not kept lower than this specified level across a variety of temperature, DC bias characteristic.

And also make sure that the capacitor value cannot change as time progresses.

●

Electrical characteristics

(Unless otherwise specified, Ta = 25°C, VIN = VOUT + 1.0 V

*5, STBY = 1.5 V, CIN = 1 µF, CO = 1 µF)

Parameter

Symbol

Limits

Unit

Conditions

Min.

Typ.

Max.

Output voltage 1

VOUT1

VOUT

 0.99

VOUT

 1.01

V

IOUT = 1 mA, Ta = 25°C,

BH25RB1WGUT or higher

VOUT

- 25 mV

VOUT

+ 25 mV

IOUT = 1mA, Ta = 25°C,

BH15, 18RB1WGUT

Output voltage 2

VOUT2

VOUT

 0.97

VOUT

 1.03

V

IOUT = 1 mA

Ta = -40°C to 85°C

*3

Circuit current

IGND

—

34

72

µA

IOUT = 0 mA

Ta = -40°C to 85°C

*3

Circuit current (STBY)

ICCST

—

1.0

µA

STBY = 0 V

Ripple rejection ratio

RR

—

63

—

dB

VRR = -20 dBV, fRR = 1 kHz,

IOUT = 10 mA

Dropout voltage

VSAT

—

100

150

mV

VIN = 0.98

 VOUT, IOUT = 100 mA

(Excluding BH15, 18RB1WGUT)

Line regulation

VDLI

—

2

20

mV

IOUT = 10 mA

VIN = VOUT + 0.5 V to 5.5 V

*4

Load regulation

VDLO

—

2

30

mV

IOUT = 1 mA to 100 mA

Overcurrent protection limit current

ILMAX

—

300

—

mA

VO = VOUT

 0.98

Short current

ISHORT

—

40

—

mA

VO = 0 V

STBY pin current

ISTBY

0.5

1.3

3.6

µA

Ta = -40°C to 85°C

*3

STBY control voltage

ON

VSTBH

1.2

—

VIN

V

Ta = -40°C to 85°C

*3

OFF

VSTBL

-0.2

—

0.2

V

Ta = -40°C to 85°C

*3

* This IC is not designed to be radiation-resistant.

*3: These specifications are guaranteed by design.

*4: For BH15, 18RB1WGUT, VIN = 3.0 V to 5.5 V.

*5: For BH15, 18RB1WGUT, VIN = 3.5 V.

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