BD9152MUV datasheet(4/17 Pages) ROHM

Part #	BD9152MUV

Description	Output 1.5A or Less High Efficiency Step-down Switching Regulator with Built-in Power MOSFET

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Manufacturer	ROHM [Rohm]

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BD9152MUV

Technical Note

4/16

www.rohm.com

2010.04 - Rev.C

○

c

●

Characteristics data

0

25

50

75

100

125

150

175

200

-40

-20

0

20

40

60

80

100

TEMPERATURE:Ta[℃]

0

10

20

30

40

50

60

70

80

90

100

10

100

1000

10000

OUTPUT CURRENT:IOUT[mA]

0.7

0.8

0.9

1

1.1

4.5

4.75

5

5.25

5.5

INPUT VOLTAGE:VCC[V]

Fig.10 VCC-Fosc

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

01

2

3

4

OUTPUT CURRENT:IOUT[A]

【

VOUT2=1.2V】

【

VOUT2=1.2V】

VCC=5V

Ta=25℃

Io=1.5A

VCC=5V

Ta=25℃

Io=0A

【

VOUT2=1.2V】

3.20

3.25

3.30

3.35

3.40

-40

-20

0

20

40

60

80

TEMPERATURE:Ta[℃]

VCC=5V

Io=0A

【

VOUT1=3.3V】

0.0

0.2

0.4

0.6

0.8

1.0

1.2

-40

-20

0

2040

6080

TEMPERATURE:Ta[℃]

VCC=5V

Fig.9 Ta- Fosc

Fig.8 Efficiency

Fig. 6 Ta-VOUT1

Fig.3 VCC – VOUT1,VOUT2

Fig.5 IOUT - VOUT

Fig.4 VEN - VOUT

Fig.11 Ta – RONN, RONP

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

01

2345

INPUT VOLTAGE:VCC[V]

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

012

345

EN VOLTAGE:VEN[V]

Fig. 7 Ta-VOUT2

【

VOUT2=1.2V 設定】

1.15

1.18

1.20

1.23

1.25

-40

-20

0

20

40

60

80

TEMPERATURE:Ta[℃]

VCC=5V

Ta=25℃

【

VOUT1=3.3V】

【

VOUT2=2.5V】

【

VOUT2=1.5V】

【

VOUT2=1.2V】

【

VOUT2=1.0V】

Ta=25℃

PMOS

NMOS

VCC=5V

【

VOUT1=3.3V】

【

VOUT1=3.3V】

【

VOUT1=3.3V】

【

VOUT2=1.2V】

VCC=5V

Io=0A

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

-40

-20

0

2040

6080

TEMPERATURE:Ta[℃]

0

100

200

300

400

500

600

-40

-20

0

2040

6080

TEMPERATURE:Ta[℃]

VCC=5V

Fig.12 Ta－EN1,EN2

Fig.13 Ta－Icc

VCC=5V

Fig.14 Soft start wave form

(Io=0mA)

EN1=E2

VOUT1

VOUT2

VCC=5V,Ta=25℃

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