S-8365AAABA-M5T1Y2 Datasheet, PDF (3/63 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
Rev.2.1_01
S-8365/8366 Series
3. Without UVLO and short-circuit protection
L
SD
M1
EXT
IC Internal
Power Supply
Triangular Wave
Oscillation Circuit
PWM Comparator
PWM control, or
PWM / PFM
Switching Control
+
−
Circuit
Error
Amplifier
+
−
V_OUT
VDD
C_FB
FB
R_FB1
R_FB2
V_IN C_IN
ON/OFF
ON/OFF
Circuit
Reference Voltage
with Soft-Start Circuit
VSS
C_OUT
Figure 3
Caution To stabilize the output voltage and oscillation frequency of the S-8365/8366 Series, the input voltage of
1.8 V ≤ VDD ≤ 5.5 V is necessary. When connecting the VOUT output to the VDD pin, set the input voltage
(VOUT) as to satisfy the above range, including the spike voltage generated in VOUT.
3