MIC2104 datasheet(4/38 Pages) MICREL

4 / 38 page

Micrel, Inc.

MIC2103/04

November 26, 2013

Revision 2.0

Absolute Maximum Ratings

(1)

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

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

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

VSW ...............................................(DC) −0.3V to (VIN +0.3V)

VSW ............................................ (Transient ) −5.0V <100ns

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 × 3mm MLF-16 (

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

3mm × 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

Feedback Reference Voltage

TJ = 25°C (±1.0%)

0.792

0.8

0.808

-40°C

≤ TJ ≤ 125°C (±2%)

0.784

0.8

0.816

FB Bias Current

VFB = 0.8V

500

Notes:

Exceeding the absolute maximum rating may damage the device.

Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k

Ω in series with 100pF.

The device is not guaranteed to function outside operating range.

Specification for packaged product only.

The application is fully functional at low VDD (supply of the control section) if the external MOSFETs have low voltage VTH.

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