S-8363B-I6T1U2 Datasheet, PDF (2/50 Pages) Seiko Instruments Inc – PWM/PFM SWITCHABLE SWITCHING REGULATOR

STEP-UP, SUPER-SMALL PACKAGE, 1.2 MHz PWM/PFM SWITCHABLE SWITCHING REGULATOR
S-8363 Series
Rev.2.0_01
 Block Diagram
ON/OFF
VIN
V_{IN CIN}
L = 2.2 μH
SD
V_IN
ON/OFF
Circuit
Start-up
Circuit
CONT
Oscillation
Circuit
VOUT
SLOPE
Compensation
Internal
Power Supply
Current
Limit Circuit
MUX
Switching
Control
Circuit
Σ
STU Mode
Circuit V_{OUT CFB}
Error Amplifier
FB
−
+
+
−
PWM
Reference
Comparator _Voltage
Source
VSS
V_OUT
R_FB1
C_OUT
10 μF
R_FB2
Figure 1
2