MP2119 – 2A, 6V SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR

MP2119 Rev. 0.94

www.MonolithicPower.com

3

4/22/2011

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© 2011 MPS. All Rights Reserved.

Parameters

Condition

Min

Typ

Max

Units

Supply Current

750

µA

Shutdown Current

1

µA

IN

Undervoltage

Lockout

Threshold

Rising Edge

2.59

2.69

V

IN

Undervoltage

Lockout

Hysteresis

210

mV

Regulated FB Voltage

0.776

0.800

0.824

V

FB Input Current

±50

nA

EN High Threshold

1.6

V

EN Low Threshold

0.4

V

Internal Soft-Start Time

120

µs

High-Side Switch On-Resistance

100

mΩ

Low-Side Switch On-Resistance

100

mΩ

SW Leakage Current

–10

10

µA

BS

Under

Voltage

Lockout

Threshold

1.8

V

High-Side Switch Current Limit

Sourcing

TBD

3.5

A

Low-Side Switch Current Limit

Sinking

3.5

A

Oscillator Frequency

1.2

1.5

1.8

MHz

Maximum Synch Frequency

2

MHz

Minimum Synch Frequency

1

MHz

Minimum On Time

50

ns

Maximum Duty Cycle

90

%

POK Upper Trip Threshold

FB respect to the nominal value

10

%

POK Lower Trip Threshold

FB respect to the nominal value

-10

%

POK Output Voltage Low

0.4

V

POK Deglitch Timer

30

µs

Thermal Shutdown Threshold

Hysteresis = 20°C

150

°C

Note:

5) Production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.