MP2459 datasheet(2/13 Pages) MPS

2 / 13 page

MP2459 – 0.5A, 55V, 480kHz, STEP-DOWN CONVERTER IN A TSOT23-6

MP2459 Rev. 1.0

www.MonolithicPower.com

3/4/2013

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

ORDERING INFORMATION

Part Number*

Package

Top Marking

MP2459GJ

TSOT23-6

AEQ

* For Tape & Reel, add suffix –Z (eg. M2459GJ–Z);

PACKAGE REFERENCE

BST

GND

TOP

VIEW

ABSOLUTE MAXIMUM RATINGS

(1)

Supply Voltage VIN ........................ −0.3V to 60V

VSW ........................................−0.3V to VIN+0.3V

VBS .......................................................VSW + 6V

All Other Pins................................ −0.3V to +6V

Continuous Power Dissipation (TA = +25°C)

(2)

TSOT23-6..............................................0.568W

Junction Temperature .............................. 150°C

Lead Temperature ................................... 260°C

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

Recommended Operating Conditions

(3)

Supply Voltage VIN .......................... 4.5V to 55V

Output Voltage VOUT............... 0.81V to 0.95×VIN

Operating Junction Temp........ −40°C to +125°C

Thermal Resistance

(4)

θJA

θJC

TSOT23-6 .............................. 220 ... 110 °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 θJA, 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

will cause excessive die temperature, and the regulator will go

into thermal shutdown. Internal thermal shutdown circuitry

protects the device from permanent damage.

3) The device function is not guaranteed outside of the

recommended operating conditions.

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

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