MIC2104YML datasheet(4/36 Pages) MICREL

4 / 36 page

Micrel, Inc.

MIC2103/04

August 2012

M9999-080712-A

Absolute Maximum Ratings

(1)

VIN ................................................................ –0.3V to +76V

VDD, VPVDD........................................................ –0.3V to +6V

VSW, VFREQ, VILIM, VEN............................ 0.3V to (VIN +0.3V)

VBST to VSW ........................................................ 0.3V to 6V

VBST ................................................................ 0.3V to 82V

VPG .....................................................0.3V to (VDD + 0.3V)

VFB . ....................................................0.3V to (VDD + 0.3V)

PGND to AGND ...........................................

0.3V to +0.3V

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

Storage Temperature (TS).........................65C to +150C

Lead Temperature (soldering, 10sec)........................ 260°C

ESD Rating

(2)................................................. ESD Sensitive

Operating Ratings

(3)

Supply Voltage (VIN).......................................... 4.5V to 75V

Enable Input (VEN).................................................. 0V to VIN

VSW, VFEQ, VILIM, VEN ............................................... 0V to VIN

Junction Temperature (TJ) ........................ 40C to +125C

Junction Thermal Resistance

3mm x 3mm MLF-16 (

JA) ....................................50.8°C/W

3mm x 3mm MLF-16 (

JC) ....................................25.3°C/W

Electrical Characteristics

(4)

VIN = 48V, VOUT = 5V, VBST – VSW = 5V; TA = 25°C, unless noted. Bold values indicate 40°C ≤ TJ ≤ +125°C.

Parameter

Condition

Min

Typ

Max

Units

Power Supply Input

Input Voltage Range (VIN)

(5)

4.5

Quiescent Supply Current (MIC2103)

VFB = 1.5V

400

750

µA

Quiescent Supply Current (MIC2104)

VFB = 1.5V

2.1

Shutdown Supply Current

SW unconnected, VEN = 0V

0.1

µA

VDD Supply

VDD Output Voltage

VIN = 7V to 75V, IDD = 10mA

4.8

5.2

5.4

VDD UVLO Threshold

VDD rising

3.8

4.2

4.6

VDD UVLO Hysteresis

400

Load Regulation

IDD = 0 to 40mA

0.6

3.6

Reference

TJ = 25°C (±1.0%)

0.792

0.8

0.808

Feedback Reference Voltage

-40°C ≤ TJ ≤ 125°C (±2%)

0.784

0.8

0.816

FB Bias Current

VFB = 0.8V

500

Enable Control

EN Logic Level High

1.8

EN Logic Level Low

0.6

EN Hysteresis

200

EN Bias Current

VEN = 48V

µA

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