MP3431GL datasheet(6/25 Pages) MPS

6 / 25 page

MP3431

– 21A, HIGH-EFFICIENCY, SYNC, BOOST CONVERTER W/ PROG CURRENT LIMIT

MP3431 Rev. 1.0

www.MonolithicPower.com

6/8/2017

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

TYPICAL CHARACTERISTICS

VIN = VEN = 3.3V, VOUT = 9V, L = 1.5μH, TA = 25°C, unless otherwise noted.

NOTE:

13) When VIN is higher than 3.4V, VIN supplies power to VDD, so the IQ on VIN rises to higher when VIN > 3.4V. When VIN is 3V, the higher

voltage source of either VIN or VOUT supplies VDD, so the IQ on VOUT rises higher when VOUT > 3V and VIN = 3V.

100

200

300

400

500

600

Input Voltage(V)

IQ (VIN Pin) vs. Input Voltage

VOUT=9V (13)

100

200

300

400

500

600

Output Voltage (V)

IQ (VOUTPin) vs. Output Voltage

VIN=3V (13)

0.5

1.5

2.5

Input Voltage(V)

Shutdown Current vs. Input Votlage

100

150

200

250

ILIM Resistor(kΩ)

Input Current Limit vs. ILIM Resistor

VOUT=9V

Vin=3.3V

Vin=6.6V

10.5

11.5

12.5

13.5

Input Voltage(V)

Input Current Limit vs. Input Voltage

RILIM=22kΩ

Vout=15V

Vout=9V

10.5

11.5

12.5

13.5

Output Voltage(V)

Input Current Limit vs. Output Voltage

RILIM=22kΩ

Vin=3.3V

Vin=6.6V

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