MP3900 – HIGH EFFICIENCY BOOST CONTROLLER

MP3900 Rev. 1.0

www.MonolithicPower.com

3

12/17/2013

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© 2013 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

Parameter

Symbol Condition

Min

Typ

Max

Units

VCC Undervoltage Lockout

(VCC UVLO Turn_On Threshold)

8.6

8.9

9.2

V

VCC On/Off Voltage Hysteresis

(VCC UVLO Turn_On/Off Hysteresis)

2.0

2.3

V

COMP Run Threshold

0.120

0.160

0.200

V

Shutdown Current

8

20

µA

Quiescent Current (Operation)

180

280

µA

Gate Driver Impedance (Sourcing)

16

Ω

Gate Driver Impedance (Sinking)

4.0

6.0

Ω

Error Amplifier Transconductance

0.26

0.36

0.46

mA/V

Maximum Comp Current

Sourcing and Sinking

40

µA

EA Translator Gain

(5)

0.28

0.32

0.36

V/V

Switching Frequency

270

330

390

KHz

Thermal Shutdown

(5)

150

°C

Maximum Duty Cycle

77

80

83

%

Minimum On Time

110

150

ns

ISENSE Limit

175

200

225

mV

FB Voltage

0.790

0.816

0.840

V

FB Bias Current

Current flowing out of part

50

nA

ISENSE Bias Current

(5)

Current flowing out of part

50

nA

Note:

5) Guaranteed by design.