S-8540 SII [Seiko Instruments Inc], S-8540 Datasheet - Page 9

• Manufacturer Part Number: S-8540
• Description: STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
• Manufacturer: SII [Seiko Instruments Inc]

Rev.3.2
1.
2.
3.
4.
Measurement Circuits
STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
V
V
ON/OFF
ON/OFF
R
R
_00
SS
SS
A
A
A
C
C
C
SS
SS
FB
A
R
C
+
C
FB2
+
OUT
OUT
R
C
SENSE
FB
R
A
R
FB2
FB1
R
FB1
A
ON/OFF
VOUT
SENSE
ON/OFF
VOUT
SENSE
R
SENSE
ON/OFF
VOUT
FB
SENSE
ON/OFF
VOUT
FB
SENSE
Seiko Instruments Inc.
VSS
VSS
Figure 5
Figure 6
Figure 7
Figure 8
VSS
VSS
CVREF
EXT
VIN
CVREF
CVREF
EXT
VIN
CVREF
EXT
VIN
EXT
VIN
R
C
b
b
L
A
R
C
b
b
A
A
L
SD
A
A
SD
P
A
SW
C
IN
S-8540/8541 Series
C
P
IN
SW
C
C
IN
+
IN
V
+
I N
V
C
IN
VL
C
VL
C
VL
C
VL
9