S-8353A20MC-IQFT2X Datasheet, PDF (10/49 Pages) Seiko Instruments Inc – BUILT-IN TRANSISTOR SWITCHING REGULATOR

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.0_01
 Electrical Characteristics
(1) 50 kHz Product (A and D Types)
Item
Output voltage
Input voltage
Operation start voltage
Oscillation start voltage
Operation holding voltage
Current consumption 1
Current consumption 2
Current consumption during
shutdown
(With shutdown function)
Switching current
Switching transistor leakage
current
Line regulation
Load regulation
Output voltage temperature
coefficient
Oscillation frequency
Maximum duty ratio
PWM / PFM switching duty
ratio (For S-8354 Series)
ON / OFF pin input voltage
(With shutdown function)
ON / OFF pin input current
(With shutdown function)
Soft start time
Efficiency
Symbol
VOUT
VIN
VST1
VST2
VHLD
ISS1
ISS2
Table 14
Condition
−
−
IOUT = 1 mA
No external parts, Voltage applied to VOUT
IOUT = 1 mA, Judged by decreasing VIN
voltage gradually
S-835xx15 to 19
S-835xx20 to 29
VOUT = VOUT(S) × 0.95
S-835xx30 to 39
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
S-835xx15 to 19
S-835xx20 to 29
VOUT = VOUT(S) + 0.5 V
S-835xx30 to 39
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
(Ta = 25°C unless otherwise specified)
Min. Typ. Max.
Unit
Measurement
circuit
VOUT(S) VOUT(S) VOUT(S)
× 0.976
× 1.024
V
2
−
−
10
V
2
−
−
0.9
V
2
−
−
0.8
V
1
0.7
−
−
V
2
− 10.8 18.0 μA
1
− 13.3 22.2 μA
1
− 18.7 31.1 μA
1
− 24.7 41.1 μA
1
− 31.0 51.6 μA
1
− 37.8 63.0 μA
1
−
4.8 9.5
μA
1
−
5.0 9.9
μA
1
−
5.1 10.2 μA
1
−
5.3 10.6 μA
1
−
5.5 10.9 μA
1
−
5.7 11.3 μA
1
ISSS
V_{ON/ OFF} = 0 V
−
−
0.5
μA
1
ISW
VCONT = 0.4 V
S-835xx15 to 19 80 128 −
mA
1
S-835xx20 to 24 103 165 −
mA
1
S-835xx25 to 29 125 200 −
mA
1
S-835xx30 to 39 144 231 −
mA
1
S-835xx40 to 49 176 282 −
mA
1
S-835xx50 to 59 200 320 −
mA
1
S-835xx60 to 65 215 344 −
mA
1
ISWQ
VCONT = VOUT = 10 V
−
−
0.5
μA
1
ΔVOUT1
ΔVOUT2
∆VOUT
∆Ta • VOUT
fOSC
MaxDuty
VIN = VOUT(S) × 0.4 to × 0.6
IOUT = 10 μA to VOUT(S) / 250 × 1.25
Ta = −40°C to +85°C
VOUT = VOUT(S) × 0.95
VOUT = VOUT(S) × 0.95
−
30 60
mV
2
−
30 60
mV
2
− ±50 − ppm / °C
2
42.5 50 57.5 kHz
1
75 83 90
%
1
PFMDuty
VIN = VOUT(S) − 0.1 V, No-load
10 15 24
%
1
VSH
Measured oscillation at CONT pin
0.75 −
−
V
1
VSL1
Judged oscillation stop at At VOUT≥1.5 V −
−
0.3
V
1
VSL2
CONT pin
At VOUT<1.5 V −
−
0.2
V
1
ISH
V_{ON/ OFF} = VOUT(S) × 0.95
− 0.1 −
0.1
μA
1
ISL
V_{ON/ OFF} = 0 V
− 0.1 −
0.1
μA
1
tSS
−
3.0 6.0 12.0 ms
2
EFFI
−
−
85
−
%
2
10