Datasheet Details
Part number:
S-8351
Manufacturer:
Seiko Instruments
File Size:
752.14 KB
Description:
SMALL PACKAGE PFM CONTROL STEP-UP SWITCHING REGULATOR
Features
* the small package and low current consumption, makes the S-8351 Series ideal for applications such as the power supply unit of portable equipment. The S-8352 Series, which features an external transistor, is suitable for applications requiring a high output current.
* Features
* Lo
S-8351, SMALL PACKAGE PFM CONTROL STEP-UP SWITCHING REGULATOR
Output voltage pin and IC power supply pin GND pin External inductor connection pin (Open-drain output) 2 Figure 7 3 Table 7 S-8352 Series B and C Types (Without shutdown function, VDD / VOUT non-separate type) Pin No.
1 2 3 Symbol VOUT VSS EXT Pin Description Output voltage pin and IC power supp
Rev.2.0_00 STEP-UP, SUPER-SMALL PACKAGE, PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER S-8351/8352 Series The S-8351/8352 Series is a CMOS step-up switching regulator controller which mainly consists of a reference voltage source, an oscillation circuit, a comparator and PFM control circuit.
The PFM control circuit allows the duty ratio to be automatically switched according to the load (at light load : 50%, at high output current : 75%), enabling products with a low ripple
S-8351 Distributor
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