S-8363B-I6T1U2 Datasheet, PDF (31/50 Pages) Seiko Instruments Inc – PWM/PFM SWITCHABLE SWITCHING REGULATOR

STEP-UP, SUPER-SMALL PACKAGE, 1.2 MHz PWM/PFM SWITCHABLE SWITCHING REGULATOR
Rev.2.0_01
S-8363 Series
2. Examples of Major Temperature Characteristics (Ta = −40 to +85°C)
(1) Current consumption during operation (IIN1) vs.
Temperature (Ta)
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
−40 −25 0
VIN = 0.9 V
VIN = 1.8 V
VIN = 4.2 V
VIN = 4.5 V
25 50 75 85
Ta [C]
(2) Current consumption during operation (ISS1) vs.
Temperature (Ta)
1000
900
800
700
600
500
400
300
200
100
0
−40 −25
VOUT = 5.0 V
VOUT = 3.3 V
VOUT = 1.8 V
0
25 50
75 85
Ta [C]
(3) Current consumption during switching off (IIN2) vs.
Temperature (Ta)
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
−40 −25 0
VIN = 0.9 V
VIN = 1.8 V
VIN = 4.2 V
VIN = 4.5 V
25 50 75 85
Ta [C]
(4) Current consumption during switching off (ISS2) vs.
Temperature (Ta)
200
180
160
140
120
100
80
60
40
20
0
−40 −25 0
VOUT = 1.8 V
VOUT = 3.3 V
VOUT = 5.0 V
25 50 75 85
Ta [C]
(5) Current consumption during power-off (ISSS) vs. Temperature (Ta)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
−40 −25
VIN = VOUT = 4.5 V
0
25 50
75 85
Ta [C]
(6) Oscillation frequency (fOSC) vs. Temperature (Ta)
1.38
1.34
1.30
1.26
1.22
1.18
1.14
1.10
1.06
1.02
−40 −25 0
VOUT = 1.8 V
VOUT = 3.3 V
VOUT = 5.0 V
25 50 75 85
Ta [C]
(7) Start-up oscillation frequency (fST) vs. Temperature (Ta)
500
450
400
350
300
VIN = 0.9 V
250
200
150
100
−40 −25 0
25 50 75 85
Ta [C]
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