SM8121A Просмотр технического описания (PDF) - Nippon Precision Circuits
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SM8121A Datasheet PDF : 19 Pages
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SM8121A
SPECIFICATIONS
Absolute Maximum Ratings
Parameter
Supply voltage range
Input voltage range
SW output voltage range
SW input current
Power dissipation
Operating temperature range
Storage temperature range
Symbol
Rating
Unit
V DD
−0.3 to 6.5
V
V IN
VSS – 0.3 to VDD + 0.3
V
V SW
–0.3 to 27
V
I SW
500
mA
PD
250 (Ta = 25°C)
mW
Topr
–40 to 85
°C
T stg
−55 to 125
°C
Electrical Characteristics
VDD = 3.6V, VSS = 0V, Ta = 25°C unless otherwise noted
Parameter
Supply voltage
Maximum output voltage
Standby current
Quiescent current
SW-Tr ON resister
SW-Tr leak current
Switching frequency
Maximum duty
Input voltage
Input current
Soft-start time
FB voltage
Coil inductance
Pin
Symbol
Condition
VDD
V DD
SW
VOUT
VDD
I STB
VCE = 0V
VFB = 1.0V
VDD
I DD
VFB = 0V
SW
RON ISW = 100mA, VDD = 3.6V
SW
ILEAK VSW = VDD
SW
fOSC VFB = 0V
SW
Duty VFB = 0V
VIH
CE
VIL
CE
ICE
VCE = 3.6V
FB
IFB
VFB = 0.5V
SW
T SS
FB
V FB
SW
L SW
Rating
Unit
min
typ
max
2.3
3.6
5.5
V
–
–
25
V
–
–
1.0
µA
–
150
300
µA
–
400
800
µA
–
2.0
3.0
Ω
–
–
1.0
µA
0.9
1.0
1.1
MHz
65
75
85
%
2.0
–
–
V
–
–
0.6
V
–
5.0
10
µA
–1.0
–
1.0
µA
–
500
–
µs
0.49
0.50
0.51
V
–
–
10
µH
NIPPON PRECISION CIRCUITS INC.—4
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