MP2108 datasheet(2/10 Pages) MPS

2 / 10 page

MP2108 – 2A, 6V, 720KHz SYNCHRONOUS BUCK CONVERTER

INITIAL RELEASE – SPECIFICATIONS SUBJECT TO CHANGE

MP2108 Rev. 0.93

www.MonolithicPower.com

2/28/2006

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

PACKAGE REFERENCE

Part Number*

Package

Temperature

MP2108DK

MSOP10

–40

°C to +85°C

* For Tape & Reel, add suffix –Z (eg. MP2108DK–Z)

For Lead Free, add suffix –LF (eg. MP2108DK–LF–Z)

Part Number**

Package

Temperature

MP2108DQ

QFN10

(3mm x 3mm)

–40

°C to +85°C

** For Tape & Reel, add suffix –Z (eg. MP2108DQ–Z)

For Lead Free, add suffix –LF (eg. MP2108DQ–LF–Z)

ABSOLUTE MAXIMUM RATINGS

(1)

Input Supply Voltage VIN ............................. 6.5V

LX Voltage VLX ..................... –0.3V to VIN + 0.3V

BST to LX Voltage .........................–0.3V to +6V

Voltage on All Other Pins............... –0.3V to +6V

Storage Temperature...............–55

°C to +150°C

Recommended Operating Conditions

(2)

Input Supply Voltage VIN ...................... 2.6V to 6

Output Voltage VOUT...........................0.9V to 5V

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

°C to +85°C

Thermal Resistance

(3)

θJA

θJC

MSOP10 ................................ 150 ..... 65...

°C/W

QFN10 (3mm x 3mm)............. 50 ...... 12...

°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 = 5.0V, TA = +25°C, unless otherwise noted.

Parameter

Symbol Condition

Min

Typ

Max

Units

Input Voltage Range

VIN

2.6

Input Undervoltage Lockout

2.2

Input Undervoltage Lockout

Hysteresis

100

Shutdown Supply Current

VRUN ≤ 0.3V

0.5

1.0

µA

Operating Supply Current

VRUN > 2V, VFB = 1.1V

1.2

1.8

VREF Voltage

VREF

VIN = 2.6V to 6V

2.4

RUN Input Low Voltage

VIL

0.4

RUN Input High Voltage

VHL

1.5

RUN Hysteresis

100

RUN Input Bias Current

µA

BST

VIN

PGND

SGND

RUN

VREF

COMP

TOP VIEW

MP2108_PD01-MSOP10

MP2108_PD02-QFN10

TOP VIEW

BST

VIN

PGND

SGND

RUN

VREF

COMP

EXPOSED PAD

ON BACKSIDE

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