S-8365AAABA-M5T1Y2 Datasheet, PDF (36/63 Pages) Seiko Instruments Inc – PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER

STEP-UP, SUPER-SMALL PACKAGE, 1.2 MHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8365/8366 Series
Rev.2.1_01
(5) Soft-start time (tSS) vs. Temperature (Ta)
10
9
8
7
6
VDD = 5.5 V
5
VDD = 3.6 V
4
VDD = 2.0 V
3
−40 −25
0
25 50
Ta [C]
75 85
(6) PWM / PFM switching duty ratio (PFMDuty) vs.
Temperature (Ta)
36
34
32
30
28
26
VDD = 5.5 V
24
VDD = 3.6 V
22
VDD = 2.0 V
20
−40 −25 0
25 50 75 85
Ta [C]
(7) High level input voltage (VSH) vs. Temperature (Ta)
0.8
0.7
VDD = 5.5 V
VDD = 3.6 V
0.6
VDD = 2.0 V
0.5
0.4
0.3
−40 −25
0
25 50
Ta [C]
75 85
(8) Low level input voltage (VSL) vs. Temperature (Ta)
0.8
0.7
VDD = 5.5 V
0.6
VDD = 3.6 V
VDD = 2.0 V
0.5
0.4
0.3
−40 −25
0
25 50
Ta [C]
75 85
(9) UVLO release voltage (VUVLO+) vs. Temperature (Ta)
1.80
1.75
1.70
1.65
1.60
1.55
1.50
1.45
1.40
−40 −25
0
25 50 75 85
Ta [C]
(10) UVLO hysteresis width (VUVLOHYS) vs. Temperature (Ta)
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
−40 −25 0
25 50 75 85
Ta [C]
(11) FB voltage (VFB) vs. Temperature (Ta)
0.62
0.61
0.60
VDD = 5.5 V
VDD = 3.6 V
VDD = 2.0 V
0.59
0.58
−40 −25
0
25 50
Ta [C]
75 85
(12) Short-circuit protection delay time (tPRO) vs.
Temperature (Ta)
CSP = 0.1 μF
80
70
VDD = 5.5 V
60
VDD = 3.6 V
VDD = 2.0 V
50
40
30
−40 −25
0
25 50
Ta [C]
75 85
36