MP2362DF datasheet(2/11 Pages) MPS

2 / 11 page

MP2362 — DUAL 2A, 23V, 380KHZ STEP-DOWN CONVERTER

MP2362 Rev. 0.93

www.MonolithicPower.com

1/25/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

PACKAGE REFERENCE

Part Number*

Package

Temperature

MP2362DF

TSSOP20F

–40

°C to +85°C

* For Tape & Reel, add suffix –Z (eg. MP2362DF–Z)

For RoHS compliant packaging, add suffix –LF (eg.

MP2362DF–LF–Z)

ABSOLUTE MAXIMUM RATINGS (1)

Supply Voltage (INA, INB )................................ 25V

Switch Voltage (SWA, SWB).............................. 26V

Bootstrap Voltage (BSA, BSB) .................. VSW + 6V

Feedback Voltage (FBA, FBB) ............ –0.3V to +6V

Enable/UVLO Voltage (ENA, ENB) ..... –0.3V to +6V

Comp Voltage (COMPA, COMPB) .......... –0.3V to +6V

SYNC Voltage (SYNCA, SYNCB) ........... –0.3V to +6V

Junction Temperature.............................+150

°C

Lead Temperature ..................................+260

°C

Storage Temperature ..............–65°C to +150

°C

Recommended Operating Conditions

(2)

Supply Voltage (VIN) ...................... 4.75V to 23V

Operating Temperature.................–40

°C to +85°C

Thermal Resistance

(3)

θJA

θJC

TSSOP20F ............................. 40 ....... 6....

°C/W

Notes:

1) Exceeding these ratings may damage the device.

2) The device is not guaranteed to function outside of its

operating conditions.

3) Measured on approximately 1” square of 1 oz copper.

ELECTRICAL CHARACTERISTICS

VIN = 12V, TA = +25°C, unless otherwise noted.

Parameter

Symbol Condition

Min

Typ

Max

Units

Feedback Voltage

VFB

4.75V

≤ VIN ≤ 23V

1.198

1.222

1.246

Upper Switch-On Resistance RDS(ON)1

0.18

Ω

Lower Switch-On Resistance RDS(ON)2

Ω

Upper Switch Leakage

VEN = 0V, VSW = 0V

µA

Current Limit

(4)

2.4

3.4

Current Limit Gain

Output Current to Comp Pin

Voltage

GCS

1.95

A/V

Error Amplifier Voltage Gain

AVEA

400

V/V

Error Amplifier

Transconductance

GEA

∆IC = ±10 µA

500

770

1100

µA/V

Oscillator Frequency

fOSC

340

380

420

KHz

Short Circuit Frequency

fSC

VFB = 0V

KHz

SYNC Frequency

SYNC Drive = 0V to 2.7V

0.45

1.2

MHz

SYNCA

NC1

BSA

INA

SWA

PGA

SGA

FBB

COMPB

ENB

ENA

COMPA

FBA

SGB

PGB

SWB

INB

NC2

BSB

SYNCB

TOP VIEW

EXPOSED PAD

FOR TSSOP20F ONLY

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