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MIC2102YML 数据表(PDF) 4 Page - Micrel Semiconductor

部件名 MIC2102YML
功能描述  38V, Synchronous Buck Controllers Featuring Adaptive On-Time Control
PDF  37 Pages
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制造商  MICREL [Micrel Semiconductor]
网页  http://www.micrel.com
标志 MICREL - Micrel Semiconductor

MIC2102YML 数据表(HTML) 4 Page - Micrel Semiconductor

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Micrel, Inc.
MIC2101/02
August 2012
4
M9999-080712-A
Absolute Maximum Ratings
(1)
VIN ................................................................ 0.3V to +40V
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 46V
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, 10s)............................ 260°C
ESD Rating
(2)................................................. ESD Sensitive
Operating Ratings
(3)
Supply Voltage (VIN).......................................... 4.5V to 38V
Enable Input (VEN).................................................. 0V to VIN
VSW, VFREQ, 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 = 12V, VOUT =1.2V; 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
38
V
Quiescent Supply Current (MIC2101)
VFB = 1.5V
400
750
µA
Quiescent Supply Current (MIC2102)
VFB = 1.5V
2.1
3
mA
Shutdown Supply Current
SW unconnected, VEN = 0V
0.1
10
µA
VDD Supply
VDD Output Voltage
VIN = 7V to 38V, IDD = 10mA
4.8
5.2
5.4
V
VDD UVLO Threshold
VDD rising
3.8
4.2
4.6
V
VDD UVLO Hysteresis
400
mV
Load Regulation
IDD = 0 to 40mA
0.6
2
3.6
%
Reference
Feedback Reference Voltage
TJ = 25°C (±1.0%)
0.792
0.8
0.808
V
40°C ≤ TJ ≤ 125°C (±2%)
0.784
0.8
0.816
FB Bias Current
VFB = 0.8V
5
500
nA
Enable Control
EN Logic Level High
1.8
V
EN Logic Level Low
0.6
V
EN Hysteresis
200
mV
EN Bias Current
VEN = 12V
6
30
µA
Oscillator
Switching Frequency
VFREQ = VIN
400
600
750
kHz
VFREQ = 50%VIN
300
Maximum Duty Cycle
85
%
Minimum Duty Cycle
VFB > 0.8V
0
%
Minimum Off-Time
140
200
260
ns



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