MP3429GL datasheet(3/22 Pages) MPS

3 / 22 page

MP3429

– 21A, HIGH-EFFICIENCY, FULLY INTEGRATED, SYNC, BOOST CONVERTER

MP3429 Rev. 1.0

www.MonolithicPower.com

6/8/2017

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

ABSOLUTE MAXIMUM RATINGS (1)

SW ................................ -0.3V (-3.5V for <10ns)

to +18V (22V for <10ns)

VIN, EN, MODE, VOUT ............... -0.3V to +18V

BST .................................... -0.3V to VSW + 4.5V

All other pins............................... -0.3V to +4.5V

Continuous power dissipation (TA = +25°C)

(2)

................................................................ 4W

(5)

Junction temperature ............................... 150°C

Lead temperature .................................... 260°C

Storage temperature................ -65°C to +150°C

Recommended Operating Conditions

(3)

Start-up input voltage (VST) ............. 2.7V to 13V

Operation input voltage (VIN).......... 0.8V to 13V

Startup input voltage with VDD bias (VST2) .........

....................................................... 0.9V to 13V

Maximum external VDD bias voltage ..... 3.6V

(4)

Boost output voltage (VOUT) ............VIN to 16V

Operating junction temp. (TJ). .. -40°C to +125°C

Thermal Resistance

ΘJA

ΘJC

QFN-13 (3mmx4mm)

EV3429-L-00A

(5) .................. 31........ 4 .... °C/W

JESD51-7

(6) ......................... 48....... 11 ... °C/W

NOTES:

1) Exceeding these ratings may damage the device.

2) The maximum allowable power dissipation is a function of the

maximum junction temperature TJ (MAX), the junction-to-

ambient thermal resistance θ

JA, and the ambient temperature

TA. The maximum allowable continuous power dissipation at

any ambient temperature is calculated by PD (MAX) = (TJ

(MAX)-TA)/θJA. Exceeding the maximum allowable power

dissipation produces an excessive die temperature, causing

the regulator to go into thermal shutdown. Internal thermal

shutdown circuitry protects the device from permanent

damage.

3) The device is not guaranteed to function outside of its operating

conditions.

4) When the external VDD bias voltage is lower than the normal

VDD regulated voltage, the external power prevents current

from flowing out of VDD.

5) Measured on EV3429-L-00A, 4-layer 63mmx63mm PCB.

6) Measured on JESD51-7, 4-layer PCB.

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