s-8337aaca-t8t1g Seiko Instruments Inc., s-8337aaca-t8t1g Datasheet - Page 8

• Manufacturer Part Number: s-8337aaca-t8t1g
• Description: Step-up, 1.2 Mhz High-frequency, Pwm Control Switching Regulator Controller
• Manufacturer: Seiko Instruments Inc.

8
STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8337/8338 Series
External Parts When Measuring Electrical Characteristics
Inductor
Diode
Output capacitor
Transistor
Oscillation frequency setting resistor
Maximum duty ratio setting resistor
Short-circuit protection delay time
setting capacitor
Output voltage setting resistor 1
Output voltage setting resistor 2
FB pin capacitor
Phase compensation resistor
Phase compensation capacitor
Element Name
Seiko Instruments Inc.
Table 6 External Parts
Symbol
ROSC
RDuty
RFB1
RFB2
CSP
CFB
SD
M1
RZ
CZ
CL
L
Sanyo Electric Co., Ltd.
TDK Corporation
Rohm Co., Ltd.
Manufacturer
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
LDR655312T 4.7 μH
RB491D
Ceramic 10 μF
MCH3406
200 kΩ (when f
300 kΩ (when MaxDuty = 77%)
0.1 μF (when t
8.2 kΩ (when V
1.0 kΩ (when V
180 pF
200 kΩ
0.01 μF
Part Number
PRO
OSC
OUT
OUT
= 50 ms)
= 700 kHz)
= 9.2 V)
= 9.2 V)
Rev.3.1
_00