S-8351A20MC-J2FT2X Datasheet, PDF (24/51 Pages) Seiko Instruments Inc – SWITCHING REGULATOR CONTROLLER

STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER
S-8351/8352 Series
Rev.3.0_01
 Standard Circuits
1. S-8351 Series
(1) A type
L
V_{IN +}
− ^CIN
CONT
SD
Protection
circuit
PFM control
circuit
V_REF
+
−
VOUT
+
−
C_L
ON / OFF
(2) B and C types
Figure 21
L
V_IN
+
−
C_IN
CONT
SD
Protection
circuit
PFM control
circuit
V_REF
+
−
VSS
VOUT
+
−
C_L
Figure 22
VSS
24