S-8351A50MC-J3JT2G Datasheet, PDF (4/51 Pages) Seiko Instruments Inc – STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER

STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER
S-8351/8352 Series
Rev.3.0_00
„ Product Name Structure
The product types, output voltage, and packages for the S-8351/8352 Series can be selected at the user’s request.
Please refer to the “3. Product Name” for the definition of the product name, “4. Package” regarding the package
drawings and “5. Product Name List” for the full product names.
1. Function List
(1) Built-in Power MOS FET Type
Product Name
S-8351AxxMC
Duty
Controll
system
ratio
[%]
PFM 50 / 75
S-8351BxxMA
PFM 50 / 75
S-8351CxxMA
PFM
75
S-8351CxxUA
PFM
75
Switching
frequency
[kHz]
100
100
100
100
S-8351DxxMC
PFM 50 / 75
100
Table 1
Shutdown
function
V_DD / V_OUT
separate
type
Package
Yes
−
SOT-23-5
−
−
SOT-23-3
−
−
SOT-23-3
−
−
SOT-89-3
−
Yes
SOT-23-5
Application
Applications requiring shutdown
function
Applications not requiring
shutdown function
Applications not requiring
shutdown function
Applications not requiring
shutdown function
Applications in which output
voltage is adjusted by external
resistor
(2) External Power MOS FET Type
Product Name
S-8352AxxMC
Controll
System
Duty
Ratio
[%]
PFM 50 / 75
Switching
Frequency
[kHz]
100
S-8352BxxMA
PFM 50 / 75
100
S-8352CxxMA
PFM
75
100
S-8352CxxUA
PFM
75
100
S-8352DxxMC PFM 50 / 75
100
Table 2
Shutdown
Function
V_DD / V_OUT
Separate
Type
Package
Yes
−
SOT-23-5
−
−
SOT-23-3
−
−
SOT-23-3
−
−
SOT-89-3
−
Yes
SOT-23-5
Application
Applications requiring shutdown
function
Applications not requiring
shutdown function
Applications not requiring
shutdown function
Applications not requiring
shutdown function
Applications in which output
voltage is adjusted by external
resistor
4
Seiko Instruments Inc.