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| MIC2103 Datasheet, PDF (4/36 Pages) Micrel Semiconductor – 75V, Synchronous Buck Controllers featuring Adaptive On-Time Control | |||
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Micrel, Inc.
MIC2103/04
Absolute Maximum Ratings(1)
VIN ................................................................ â0.3V to +76V
VDD, VPVDD........................................................ â0.3V to +6V
VSW, VFREQ, VILIM, VEN............................ ï0.3V to (VIN +0.3V)
VBST to VSW ........................................................ ï0.3V to 6V
VBST ................................................................ ï0.3V to 82V
VPG ..................................................... ï0.3V to (VDD + 0.3V)
VFB . .................................................... ï0.3V to (VDD + 0.3V)
PGND to AGND ........................................... ï0.3V to +0.3V
Junction Temperature .............................................. +150°C
Storage Temperature (TS).........................ï65ï°C to +150ï°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) ........................ ï40ï°C to +125ï°C
Junction Thermal Resistance
3mm x 3mm MLF-16 (ï±JA) ....................................50.8°C/W
3mm x 3mm MLF-16 (ï±JC) ....................................25.3°C/W
Electrical Characteristics(4)
VIN = 48V, VOUT = 5V, VBST â VSW = 5V; TA = 25°C, unless noted. Bold values indicate ï40°C ⤠TJ ⤠+125°C.
Parameter
Condition
Min
Typ
Power Supply Input
Input Voltage Range (VIN)(5)
Quiescent Supply Current (MIC2103)
Quiescent Supply Current (MIC2104)
Shutdown Supply Current
VDD Supply
VDD Output Voltage
VDD UVLO Threshold
VDD UVLO Hysteresis
Load Regulation
Reference
Feedback Reference Voltage
FB Bias Current
Enable Control
EN Logic Level High
EN Logic Level Low
EN Hysteresis
EN Bias Current
VFB = 1.5V
VFB = 1.5V
SW unconnected, VEN = 0V
VIN = 7V to 75V, IDD = 10mA
VDD rising
IDD = 0 to 40mA
TJ = 25°C (±1.0%)
-40°C ⤠TJ ⤠125°C (±2%)
VFB = 0.8V
VEN = 48V
4.5
400
2.1
0.1
4.8
5.2
3.8
4.2
400
0.6
2
0.792
0.8
0.784
0.8
5
1.8
200
23
Max
Units
75
V
750
µA
3
mA
10
µA
5.4
V
4.6
V
mV
3.6
%
0.808
V
0.816
500
nA
V
0.6
V
mV
40
µA
August 2012
4
M9999-080712-A
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