S-9365AAAAAI6TIG2 SII [Seiko Instruments Inc], S-9365AAAAAI6TIG2 Datasheet - Page 2

• 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]

2
S-8365/8366 Series
STEP-UP, SUPER-SMALL PACKAGE, 1.2 MHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
Block Diagram
1. With UVLO function and short-circuit protection
2. With UVLO function, without short-circuit protection
V
V
IN
IN
C
C
IN
IN
L
L
M1
M1
ON/OFF
ON/OFF
VDD
VDD
EXT
EXT
UVLO
UVLO
ON/OFF
ON/OFF
Circuit
Circuit
Switching Control
Switching Control
PWM control, or
PWM control, or
Seiko Instruments Inc.
Short-Circuit
PWM / PFM
PWM / PFM
Timer Latch
Protection
Circuit
Circuit
PWM Comparator
CSP
Figure 1
Figure 2
PWM Comparator
SD
SD
Oscillation Circuit
Oscillation Circuit
Triangular Wave
Triangular Wave
−
with Soft-Start Circuit
−
+
+
with Soft-Start Circuit
Reference Voltage
Reference Voltage
Error
Amplifier
Error
Amplifier
+
−
+
−
VSS
VSS
FB
FB
C
C
FB
FB
R
R
R
R
Rev.1.1
FB1
FB1
FB2
FB2
V
V
OUT
OUT
C
C
OUT
OUT
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