s-8460 Seiko Instruments Inc., s-8460 Datasheet - Page 6

• Manufacturer Part Number: s-8460
• Description: Step-up Or Down, Single-coil, Pwm Control Switching Regulator Controller
• Manufacturer: Seiko Instruments Inc.

6
STEP-UP OR DOWN, SINGLE-COIL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8460
Measurement Circuits
1.
2.
A
+
F93
47 μF
A
+
F93
47 μF
47 μF
0.1 μF
FDN337N
0.1 μF
FDN337N
4.7 μF
RB411D
4.7 μF
A
CSS
VL
ON/OFF
LX
BST
EXT1
LX
EXT2
VL
T
4700 pF
CPRO
Seiko Instruments Inc.
ON/OFF
CPRO
VSS DVSS
2200 pF
VIN
VIN
Figure 5
Figure 4
T
CDRH104R
22 μH
VSS DVSS
4700 pF
EXT1
EXT2
EXT3
EXT3
CSS
BST
FB
FB
FDN337N
MA2Q737
230 kΩ
100 kΩ
A
A
A
A
330 pF
F93
47 μ F
+
+
F93
47 μF
Rev.2.1
I
OUT
_00