MIC2800-ADJSLASH1.2SLASH3.3YML datasheet(9/20 Pages) MICREL

Part #	MIC2800-ADJ/1.2/3.3YML

Description	Digital Power Management IC 2MHz, 600mA DC/DC w/Dual 300mA/300mA Low VIN LDOs

PDF	20 Pages

Scroll/Zoom	100%

Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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9 / 20 page

Micrel, Inc.

MIC2800

September 2007

M9999-090507-C

Typical Characteristics (DC/DC LowQ Mode)

Power Supply Rejection Ratio

(Input Voltage)

FREQUENCY (kHz)

0.1

0.01

100 1,000

4.2V

3.6V

IOUT = 50mA

VOUT = 1.8V

COUT = 2.2µF

/LowQ = GND

Power Supply Rejection Ratio

(Output Current)

FREQUENCY (kHz)

0.1

0.01

100 1,000

100µA

0µA

50mA

VIN = 3.6V

VOUT = 1.8V

COUT = 2.2µF

/LowQ = GND

100

2.7

SUPPLY VOLTAGE (V)

2.7

LDO Current Limit

3.4

4.8

5.5

4.1

vs. Supply Voltage

/LowQ = GND

COUT = 2.2µF

1.84

1.85

1.86

1.87

1.88

1.89

1.90

10 20 30 40 50 60 70 80 90

OUTPUT CURRENT (mA)

LDO Output Voltage

VIN = 3.6V

VOUT = 1.87V

/LowQ = GND

COUT = 2.2µF

vs. Output Current

0.001

0.01

0.1

DC/DC LowQ Mode

Output Noise Spectral Density

FREQUENCY (kHz)

0.1

0.01

10 100 1,000 10,000

VIN = 4.2V

VOUT = 1.87V

COUT = 2.2µF

/LowQ = GND

MIC2800-ADJ/1.2/3.3YML Datasheet(PDF) 9 Page - Micrel Semiconductor

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