S-9365AAAAAI6TIG2 SII [Seiko Instruments Inc], S-9365AAAAAI6TIG2 Datasheet - Page 10

• Manufacturer Part Number: S-9365AAAAAI6TIG2
• Description: STEP-UP, SUPER-SMALL PACKAGE, 1.2 MHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
• Manufacturer: SII [Seiko Instruments Inc]

*1. The S-8365/8366 Series steps up from V
*2. This is the guaranteed value measured with external parts shown in “Table 10 External Parts List” and with test
*3. V
*4. V
*5. The short-circuit protection time can be set by the external capacitor, and the maximum set value by the external
10
Input voltage
Operating start
voltage
Oscillation start
voltage
Operation holding
voltage
FB voltage
FB voltage temperature
coefficient
FB pin input current
Current consumption
at operation
Current consumption
at switching off
Current consumption
at shutdown
EXT pin output current
Oscillation frequency
Maximum duty ratio
PWM / PFM switching
Duty ratio
Short-circuit protection
delay time
UVLO release voltage
UVLO hysteresis width
High level input voltage V
Low level input voltage
High level input current I
Low level input current
Soft-start time
S-8365/8366 Series
STEP-UP, SUPER-SMALL PACKAGE, 1.2 MHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
Electrical Characteristics
1. 1.2 MHz product
the output voltage and oscillation frequency.
circuits shown in Figure 10. The operating start voltage varies largely depending on diode’s forward voltage.
Evaluate sufficiently with actual device.
V
capacitor is unlimited when an ideal case is assumed. But use CSP = approximately 0.47 µF as a target maximum
value due to the need to consider the discharge time of the capacitor.
FB(S)
OUT(S)
OUT(S)
*2
Item
*4
is a setting value for FB voltage.
*5
is a setting value for output voltage. V
can be set by using the rate of V
*3
*1
V
V
V
V
V
I
I
I
I
I
I
f
Max
Duty
PFM
Duty
t
V
V
V
I
t
Symbol
FB
SS1
SS2
SSS
EXTH
EXTL
osc
PRO
SH
SL
SS
∆V
∆Ta
DD
ST1
ST2
HLD
FB
UVLO +
UVLOHYS
SH
SL
FB
Product without UVLO function,
I
No external parts
for product without UVLO function,
Product without UVLO function,
I
V
Ta = −40°C to +85°C
V
At switching operation, no load
V
At switching stop, V
V
V
V
V
V
Product with short-circuit protection,
At CSP = 0.1 µF
Product with UVLO function
Product with UVLO function
V
V
Product without
V
Product with
V
V
OUT
OUT
DD
DD
FB
ON
EXT
EXT
FB
DD
DD
DD
DD
DD
DD
= 1.8 V to 5.5 V, FB pin
= V
/
= V
= 1.8 V to 5.5 V,
= 1.8 V to 5.5 V,
= 1.8 V to 5.5 V,
= 1.8 V to 5.5 V,
= 1.8 V to 5.5 V,
gradually
= V
= 1 mA
= 1 mA, Determined by decreasing
OFF
= V
= 0.4 V
Table 8 Electrical Characteristics
FB(S)
FB(S)
OUT(S)
FB
= 0 V
DD
DD
and the output voltage setting resistors (R
− 0.4 V
× 0.95
× 0.95
= 1.1 V, but set the input voltage as to 1.8 V ≤ V
OUT
Seiko Instruments Inc.
− 0.1 V, no load
ON/
Conditions
ON/
is the typical value of actual output voltage.
OFF
−
−
FB
−
−
OFF
ON/
ON/
ON/
ON/
ON/
pin pull-down,
= V
pin pull-down,
OFF
OFF
OFF
OFF
OFF
FB(S)
pin
pin
pin
pin
pin
× 1.5
(V
DD
= 3.3 V, Ta = 25°C unless otherwise specified)
0.588
－0.1
Min.
37.5
1.60
0.05
0.75
−0.1
−0.1
100
1.8
0.8
1.0
0.2
80
20
−
−
−
−
−
−
−
−
5
±100
−130
Typ.
1.70
0.10
500
200
0.6
1.2
1.0
70
85
28
50

FB1
−
−
−
−
−
−
−
−
−
7
, R
FB2
0.612
Max.
1.78
0.15
120
−60
5.5
1.1
1.0
0.1
1.0
1.4
0.3
0.1
2.5
0.1
90
36
75
10
).
−
−
−
−
−
DD
≤ 5.5 V for stabilizing
ppm/°C
MHz
Unit
mA
mA
ms
ms
µA
µA
µA
µA
µA
µA
µA
%
%
V
V
V
V
V
V
V
V
V
Rev.1.1
Circuit
Test
2
3
1
3
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
2
_00