MIC3975 데이터 시트보기 (PDF) - Micrel
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MIC3975 Datasheet PDF : 12 Pages
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MIC3975
Absolute Maximum Ratings (Note 1)
Supply Voltage (VIN) .......................................–20V to +20V
Enable Voltage (VEN) .................................................. +20V
Storage Temperature (TS) ........................ –65°C to +150°C
Lead Temperature (soldering, 5 sec.)........................ 260°C
ESD, Note 3
Micrel
Operating Ratings (Note 2)
Supply Voltage (VIN)................................... +2.25V to +16V
Enable Voltage (VEN) .................................................. +16V
Maximum Power Dissipation (PD(max)) ..................... Note 4
Junction Temperature (TJ) ........................ –40°C to +125°C
Package Thermal Resistance
MSOP-8 (θJA) ...................................................... 80°C/W
Electrical Characteristics(Note 12)
VIN = VOUT + 1V; VEN = 2.25V; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C; unless noted
Symbol
Parameter
Condition
Min
VOUT
ΔVOUT/ΔT
ppm/°C
Output Voltage
Line Regulation
Load Regulation
Output Voltage Temp. Coefficient,
Note 5
10mA
–1
10mA ≤ IOUT ≤ 750mA, VOUT + 1V ≤ VIN ≤ 8V –2
IOUT = 10mA, VOUT + 1V ≤ VIN ≤ 16V
VIN = VOUT + 1V, 10mA ≤ IOUT ≤ 750mA,
VDO
Dropout Voltage, Note 6
IOUT = 100mA, ΔVOUT = –1%
IGND
Ground Current, Note 7
IOUT(lim)
Current Limit
Enable Input
VEN
Enable Input Voltage
IEN
Enable Input Current
IOUT = 500mA, ΔVOUT = –1%
IOUT = 750mA, ΔVOUT = –1%
IOUT = 100mA, VIN = VOUT + 1V
IOUT = 500mA, VIN = VOUT + 1V
IOUT = 750mA, VIN = VOUT + 1V
VOUT = 0V, VIN = VOUT + 1V
logic low (off)
logic high (on)
VEN = 2.25V
2.25
1
VEN = 0.8V
Flag Output
IFLG(leak)
Output Leakage Current
VOH = 16V
VFLG(do)
Output Low Voltage
VIN = 2.250V, IOL, = 250µA, Note 9
VFLG
Low Threshold
% of VOUT
93
High Threshold
% of VOUT
Hysteresis
Typ
0.06
0.2
40
140
225
300
400
4
7.5
1.8
15
0.01
210
1
Max Units
1
%
2
%
0.5
%
1
%
100
200 mV
250 mV
mV
500 mV
µA
mA
15
mA
2.5
A
0.8
V
V
30
µA
75
µA
2
µA
4
µA
1
µA
2
µA
300 mV
400 mV
%
99.2
%
%
February 2005
3
MIC3975
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