SI-8000TM Datasheet, PDF (1/15 Pages) Sanken electric – DC/DC Step-Down Converter IC

DC/DC Step-Down Converter IC
SI-8000TM Series
September 2005
■General Descriptions
SI-8000TM series has 300kHz oscillation frequency, so
it contributes miniaturization of a chalk coil.
Therefore, it realizes a compact and high efficient
power supply together with TO 252-5 package
(compatible:SC-63) .
SI-8000TM series has the function required for
switching regulators and protection circuits such as
over-current, and overheating.
With only four discrete components, it realizes a high
efficient switching regulator without adjustment.
1.5A output current by compact power surface mount
package.
■Package---TO252-5
■Applications
●DVD Recorder、FPD TV
●OA equipment, such as a printer
●On-board local power supply
■Key Specifications
■Features
●1.5A output current by compact power surface mount package.
● High Efficiency 81% (at VIN=15V, Io=0.5A,Vo=5V)
● Requires only four discrete components. (C3: required for soft
start.)
●Built-in Oscillation circuit
(oscillation frequency : 300kHz (TYP))
●Constant current type overcurrent protection and overheating
protection.
●Soft start function. (ON/OFF function available. Output OFF at
Low level.)
● Low consumption current at Output OFF.
Input
Voltage
Output
Current
Output
Voltage
Efficiency
(TYP)
SI-8008T
M
(ADJ Type)
0.8V
(REF Voltage)
81%
(5V Set-up)
Typical Connection
SI-8033T SI-8050T
M
M
43V
0 to 1.5A
3.3V
5.0V
76%
81%
SI-8120T
M
12.0V
87%
C1：220μF
C2：470μF
C3：1μF
(At the time of soft start functional use)
L1：47μH
Di：SFPB66(Sanken)
.
Sanken Electric Co.,Ltd.
http://www.sanken-ele.co.jp/en/
1/15
I02-001EA-050910