FUJITSU SEMICONDUCTOR
DATA SHEET
ASSP For Power Supply Applications (General Purpose DC/DC Converter)
1-ch DC/DC Converter IC
for low voltage
MB39A105
■DESCRIPTION
The MB39A105 is 1-channel DC/DC converter IC using pulse width modulation (PWM). This IC is ideal for up conversion.
The minimum operating voltage is low (1.8 V) , and the MB39A105 is best for built-in power supply such as LCD monitors. Also the short-circuit protection detection output function prevents input/output short on a chopper type up-converter.
This product is covered by US Patent Number 6,147,477.
■FEATURES
•Power supply voltage range : 1.8 V to 6 V
•Reference voltage accuracy : ± 1 %
•High-frequency operation capability : 1 MHz (Max)
•Built-in standby function: 0 ∝A (Typ)
•Built-in timer-latch short-circuit protection circuit
•Built-in short-circuit protection detection output function
•Built-in soft-start circuit independent of loads
•Built-in totem-pole type output for Nch MOS FET
•Package : TSSOP-8P (Thickness 1.1 mm Max)
■PACKAGE
8-pin plastic TSSOP
