MP3429

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

MP3429 Rev. 1.0

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5

6/8/2017

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otherwise noted.

Parameter

Symbol

Condition

Min

Typ

Max

Units

Power Switch

Low-side switch on resistance

6.5

mΩ

High-side synchronous switch

on resistance

10

mΩ

Low-side switch leakage

current

0.15

μA

High-side switch leakage

current

0.15

μA

BST Power

BST voltage

3.3

V

Current Limit

Switching current limit

19

21.5

23.5

A

Protection

Output OVP threshold

16.5

V

Output OVP hysteresis

0.2

V

Thermal Protection

150

C

Thermal shutdown hysteresis

(9)

25

C

NOTES:

7)

Guaranteed by over-temperature correlation, not tested in production.

8)

VDD regulation voltage from 2.7V. VIN is higher than the VDD UVLO rising threshold in each unit, which can guarantee that the IC starts

up with 2.7V VIN.

9)

Guaranteed by sample characterization, not tested in production.

10) Guaranteed by design, not tested in production.

11) Add an external voltage within this range or float MODE for USM.

12) The HS-FET ZCD is lower than -2A in USM and FCCM.