MP2101 datasheet(5/12 Pages) MPS

Part #	MP2101

Description	1.6MHz Synchronous Step-Down plus 200mA LDO

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Manufacturer	MPS [Monolithic Power Systems]

Direct Link	http://www.monolithicpower.com

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MP2101 – 1.6MHz SYNCHRONOUS STEP-DOWN PLUS 200mA LDO

MP2101 Rev. 1.0

www.MonolithicPower.com

5

8/18/2006

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

TM

TYPICAL PERFORMANCE CHARACTERISTICS (continued)

VIN = 3.6V, VOUT1 = 1.8V, VOUT2 = 1.2V, CIN1 = 4.7µF, CIN2 = 1µF, CO1 = 10µF, CO2 = 1µF, L = 2.2µH,

TA = +25°C, unless otherwise noted.

EN

2V/div.

PWROK

2V/div.

VOUT1

1V/div.

VOUT2

1V/div.

EN

5V/div.

PWROK

5V/div.

VOUT1

1V/div.

VOUT2

1V/div.

Enable Turn On

EN = 3.6V, IOUT1 = 0.3A,

IOUT2 = 0.1A Resistive Load

Enable Turn Off

EN = 3.6V, IOUT1 = 0.3A,

IOUT2 = 0.1A Resistive Load

1.206

1.205

1.204

1.203

1.202

0

40

80

120

160

200

LOAD CURRENT (mA)

Output Voltage vs

Load Current

2.53

2.52

2.51

2.50

2.49

0

40

80

120

160

200

LOAD CURRENT (mA)

Output Voltage vs

Load Current

VOUT2 = 2.5V

1.56

1.54

1.52

1.50

1.48

0

40

80

120

160

200

LOAD CURRENT (mA)

Output Voltage vs

Load Current

VOUT2 = 1.5V

LDO

VIN=3.3V

VIN=1.8V

FB1

FB2

0.62

0.61

0.60

0.59

0.58

-40

-10 +20 +50 +80

+140

+110

TEMPERATURE (

°C)

Feedback Voltage vs

Temperature

0.5

0.4

0.3

0.2

0.1

0.0

0

50

100

150

200

250

LOAD CURRENT (mA)

LDO Dropout vs

Load Current

1.8

1.7

1.6

1.5

1.4

1.3

4.0

4.4

4.8

5.2

5.6

6.0

INPUT VOLTAGE (V)

Frequency vs

Input Voltage

100

90

80

70

60

50

40

30

20

10

0

10

100

1K

10K 100K

1M

FREQUENCY (Hz)

PSRR vs

Frequency

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