S1F81150 Series
System Power Suplly IC
DESCRIPTIONS
The S1F81150 is a System Power Supply IC. From the Li-Ion/Li-polymer battery, 6 channels of output voltage
are generated via external devices. The 6 channels are independent of each other.
On this series, an I2C controller (for the slave function), input and output voltage detecting functions and many
kinds of operation modes (Normal, Sleep, Deep Sleep, Ultra-Energy-Saving) are provided as well as three PWM
controller channels and three series regulator channel.
Table.1 Product list
Model
PKG
S1F81150F0C0000
S1F81150F5C0000
QFP12-48
QFN7-48
APPLICATIONS
Mobile/Portable products, etc.
~ Optimized for PXA27x processor’s Power Supply ~
FEATURES
The features of the S1F81150 include the following:
Input voltage:
Regulator:
VIN
6 channels
3.3V to 5.5V
CH-1 (VCC1): PWM controller
Fast synchronized rectification type PWM controller
(Connected to an external component to configure a switching regulator.)
Features include a fast response circuit using a current/voltage returning system, a short-circuit-proof
circuit, a soft-start system, more compact external components by a fast clock, and dynamic voltage
management system.
Output voltage:
0.80~1.55 V (0.05V step variable)
One of these values is to be selected via the I2C controller.
Accuracy:within +/- 5%
Output current:
In the sleep status: Off.
In the normal operation:
Max: 500mA
CH-2 (VCC2): PWM controller
Fast synchronized rectification type PWM controller
(Connected to an external component to configure a switching regulator.)
Features include a fast response circuit using a current/voltage returning system, a short-circuit-proof
circuit, a soft-start system and more compact external components by a fast clock.
Output voltage:
3.3 V
Accuracy:within +/- 5%
In the deep sleep status:
In the backup operation:
In the normal operation:
Output current:
Off.
Max:10mA
Max: 1A
SEIKO EPSON CORPORATION