BU6655NUX datasheet(10/22 Pages) ROHM

No. de pieza	BU6655NUX

Descripción Electrónicos	3ch CMOS LDO Regulators

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Fabricante Electrónico	ROHM [Rohm]

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10 / 22 page

Technical Note

10/21

www.rohm.com

2011.03 - Rev.E

BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX

Fig. 40 Output Voltage

Fig. 41 Line Regulation

Fig. 48 VOUT vs Temp

Fig. 49 Ripple Rejection VS Freq.

Fig. 50 Ripple Rejection VS VIN

Fig. 51 Output Noise Spectral

Density VS Freq.

●

Reference data Vo=2.8V (Ta=25ºC unless otherwise specified.)

Fig. 42 Circuit Current IGND

Fig. 44 STBY Input Current

Fig. 45 IOUT - IGND

Fig. 46 Load Regulation

Fig. 47 OCP Threshold

Fig. 43 Dropout Voltage

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

00.511.5

2

2.533.544.555.5

Vin Voltage (V)

Temp.=25°C

IO=0uA

IO=100uA

IO=50mA

IO=200mA

VIN = STBY

2.75

2.76

2.77

2.78

2.79

2.80

2.81

2.82

2.83

2.84

2.85

2.7

2.8

2.9

3

3.1

3.2

Vin Voltage (V)

Temp.=25°C

IO=0uA

IO=100uA

IO=50mA

IO=200mA

VIN = STBY

0

20

40

60

80

100

00.5 11.5 22.5 33.5 44.5 55.5

Vin Voltage (V)

Temp.=-40°C

Temp.=25°C

Temp.=85°C

IO=0uA

VIN = STBY

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0

0.05

0.1

0.15

0.2

Output Current (A)

VIN=0.98 x VOUT

STBY = 1.5V

Temp.=-40°C

Temp.=25°C

Temp.=85°C

0

2

4

6

8

10

00.5

1

1.5

22.5

33.5

4

4.5

55.5

STBY Voltage (V)

Temp.=85°C

Temp.=25°C

Temp.=-40°C

VIN = STBY

40

50

60

70

80

90

100

110

120

0

0.05

0.1

0.15

0.2

Output Currnt (A)

VIN = 3.8V

STBY = 1.5V

Temp.=85°C

Temp.=25°C

Temp.=-40°C

2.75

2.76

2.77

2.78

2.79

2.80

2.81

2.82

2.83

2.84

2.85

-40

-15

10

35

60

85

Temp. (°C)

VIN=3.8V

STBY=1.5V

Io=0.1mA

0

10

20

30

40

50

60

70

80

0.1

1

10

100

1000

Frequency (kHz)

Vin= 3.8V

Io=10mA

Ta = 25℃

0

10

20

30

40

50

60

70

80

2.8

3.8

4.8

Input Voltage VIN[V]

f=100kHz

f= 1 0 kHz

f=1kHz

f=0.1kHz

Co=1.0μF

Cin=none

Iout=10mA

temp=25℃

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

0.1

1

10

100

Frequency f [kHz]

Co=1.0μF

Cin=1.0μF

Iout=10mA

temp=25℃

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