MP2101 datasheet(2/12 Pages) MPS

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MP2101 – 1.6MHz SYNCHRONOUS STEP-DOWN PLUS 200mA LDO

MP2101 Rev. 1.0

www.MonolithicPower.com

8/18/2006

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

PACKAGE REFERENCE

TOP VIEW

FB1

EN1

IN1

SW1

GND

FB2

EN2

PWROK

OUT2

IN2

EXPOSED PAD

ON BACKSIDE

Part Number*

Package

Temperature

MP2101DQ

QFN10

(3mm x 3mm)

–40

°C to +85°C

* For Tape & Reel, add suffix –Z (eg. MP2101DQ–Z)

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

MP2101DQ–LF–Z)

ABSOLUTE MAXIMUM RATINGS (1)

IN1, OUT1/2 to GND ................. –0.3V to + 6.5V

IN2 to GND ......................... –0.3V to VIN1 + 0.3V

SW1 to GND....................... –0.3V to VIN1 + 0.3V

PWROK to GND ......................... –0.3V to +6.5V

FB1/2, EN1/2 to GND ................. –0.3V to +6.5V

Operating Temperature .............–40°C to +85°C

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

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

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

Recommended Operating Conditions

(2)

Supply Voltage VIN1 ........................... 2.5V to 6V

Supply Voltage VIN2 ..........................1.2V to VIN1

Output Voltage VOUT1/2 ....................... 0.6V to 6V

Operating Temperature .............–40°C to +85°C

Thermal Resistance

(3)

θJA

θJC

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 (4)

VIN1/2 = VEN1/2 = 3.6V, TA = +25°C, unless otherwise noted.

Parameters

Condition

Min

Typ

Max

Units

VFB1/2 = 0.62V

400

550

µA

VEN1 = 0V, VEN2 = 3.6V

100

µA

No Load Supply Current

VEN1 = 3.6V, VEN2 = 0V

300

400

µA

Shutdown Current

VEN1/2 = 0V, VIN1/2 = 6V

0.01

µA

Thermal Shutdown Trip Threshold

Hysteresis = 20°C

150

°C

PWROK Upper-Trip Threshold

FB1/2 with respect to the Nominal Value

PWROK Lower-Trip Threshold

FB1/2 with respect to the Nominal Value

–10

PWROK Output Lower Voltage

ISINK = 5mA

0.3

PWROK Deglitch Timer (FB1)

Switching Regulator

PWROK Deglitch Timer (FB2)

LDO

150

µs

EN1/2 Trip Threshold

–40°C ≤ TA ≤ +85°C

0.3

0.96

1.5

EN1/2 Pull-Down Resistor

900

kΩ

Switching Regulator

IN1 Under Voltage Lockout Threshold Rising Edge

1.5

2.0

2.5

IN1 Under Voltage Lockout Hysteresis

100

TA = +25°C

0.588 0.600 0.612

Regulated FB1Voltage

–40°C ≤ TA ≤ +85°C

0.582

0.618

FB1 Input Bias Current

VFB1 = 0.62V

–50

–2

+50

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