SM8120A
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
250
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
Pin
Symbol
Condition
Supply voltage
VDD
Standby current
VDD
Quiescent current
VDD
SW-Tr ON resister
SW
SW-Tr leak current
SW
Maximum switching frequency
SW
Duty
SW
Input voltage
CE
CE
Input current
FB
Soft-start time
SW
FB voltage
FB
V DD
I STB
I DD
RON
I LEAK
f OSC
Duty
VIH
VIL
ICE
IFB
T SS
V FB
VCE = 0V
VFB = 1.0V
ISW = 100mA, VDD = 3.6V
VSW = VDD
VFB = 0V
VFB = 0V
VCE = 3.6V
VFB = 0.5V
Rating
Unit
min
typ
max
2.4
3.6
5.5
V
–
–
1.0
µA
–
80
120
µA
–
2.0
3.0
Ω
–
–
1.0
µA
450
500
550
kHz
53
60
67
%
2.0
–
–
V
–
–
0.6
V
–
5.0
10
µA
–1.0
–
1.0
µA
–
500
–
µs
0.49
0.50
0.51
V
NIPPON PRECISION CIRCUITS INC.—3