S-8540 Datasheet, PDF (3/36 Pages) Seiko Instruments Inc – STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER

STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
Rev.3.2_00
S-8540/8541 Series
„ Product Name Structure
• The control types, product types, and output voltage for the S-8540/8541 series can be selected at the
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.
1. Product name
S-854X X XX FN - XXX T2 G
IC direction in tape specifications^*1
Product code^*2
Package code
FN: 8-Pin MSOP
Output voltage^*3
15 to 60
(e.g. When the output voltage is 1.5 V, it is expressed as 15.)
Product type
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
Control system
0: PWM control
1: PWM/PFM switching control
*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
Seiko Instruments Inc.
3