STOD1812 데이터 시트보기 (PDF) - STMicroelectronics
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STOD1812 Datasheet PDF : 19 Pages
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Electrical characteristics
4
Electrical characteristics
STOD1812
Table 6.
Symbol
Electrical characteristics
(TJ = -40 °C to 125 °C, VI = 3.6 V, CI = CO = 4.7 µF, L = 2.2 µH, IO = 80 mA, VEN = VI,
VO = 18 V, R1=270 kΩ, R2 = 20 kΩ unless otherwise specified).
Parameter
Test conditions
Min. Typ. Max. Unit
Supply section
VI
IO
UVLO_H
Supply input voltage
Load current
Under voltage lockout
HIGH
UVLO_L
Under voltage lockout
LOW
IQ
Quiescent current
VEN H
VEN L
IEN
Enable high threshold
Enable low threshold
Enable input current
Dynamic performance
IO=0 to 120mA
VI=2.5V to 5.5V
IO=120mA
No Load, Switching
VFB=VI - No Load, No Switching
VEN =GND
VI=2.5V to 5.5V
VI=2.5V to 5.5V
VEN=Vi
TON MAX
TSS
DMAX
TON max time
Soft-start time
Maximum duty cycle
ν
Efficiency
Step-up converter section
From enable to output regulation
IO=5 to 30mA
IO=30 to 120mA
VFB1
IFB
Feedback voltage
Feedback leakage
current
VO_MAX
ΔVO_SLI
ΔVO_SLO
ΔVO_LIT
Output voltage range
Static line regulation
Static load regulation
Line transient
regulation
ΔVO_LOT
Load transient
regulation
VI=2.5V to 5.5V
VI=2.5V to 5.5V
VI=2.5V to 5.5V; IO=0 to 120mA
VI=2.5V to 5.5V, IO1=120mA,
IO=0 to 120mA, VI=3.6V;
VI=2.5V to 3.0V, IO1=120mA,
TR=TF=50µs TA=25°C
IO=5 to 120mA and IO=120 to 5mA,
TR=TF=10µs TA=25°C, peak to peak
2.5
120
2.1
1.2
1.18
18
2.3
2.2
1.3
0.3
35
100
0.5
0.6
95
75
85
1.21
30
0.6
0.0016
80
250
5.5
2.4
50
300
0.4
500
1.24
100
V
mA
V
V
mA
mA
µA
nA
V
V
nA
µs
ms
%
%
%
V
nA
V
%/V
%/mA
mV
mV
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