S-8540 SII [Seiko Instruments Inc], S-8540 Datasheet - Page 3

• 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
• The control types, product types, and output voltage for the S-8540/8541 series can be selected at the
Product Name Structure
1.
user’s request. Please refer to the “1. Product name” for the definition of the product name and “2.
Product Name List” for the full product names.
STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-854X X XX FN - XXX T2 G
Product name
*1. Refer to the taping specifications at the end of this book.
*2. Refer to the “2. Product name list”.
*3. 00: Feed back type
_00
Product type
Control system
Seiko Instruments Inc.
IC direction in tape specifications
Product code
Output voltage
Package code
15 to 60
(e.g. When the output voltage is 1.5 V, it is expressed as 15.)
FN: 8-Pin MSOP
A: Fixed output voltage, fosc = 600 kHz
B: Feed back type, fosc = 600kHz
C: Fixed output voltage, fosc = 300 kHz
D: Feed back type, fosc = 300 kHz
0: PWM control
1: PWM/PFM switching control
*2
*3
*1
S-8540/8541 Series
3