DATA SHEET
Bi
CMOS INTEGRATED CIRCUIT
µ PC1933
DC-DC CONVERTER CONTROL IC
DESCRIPTION
The µ PC1933 is an IC that controls a low-
voltage input DC-DC converter.
This IC is suitable for an operation with3-V, 3.
3-V input or a lithium ion secondary battery input, because the minimum operating supply
voltage is 2.
5 V.
Because of its wide operating
voltage range, it can also be used to control DC-DC converters that use an AC adapter for input.
FEATURES
• Low supply
voltage: 2.
5 V (MIN.
) • Operating
voltage range: 2.
5 to 20 V (breakdown
voltage: 30 V) • Timer latch circuit for short-circuit protection.
• Ceramic capacitor with low capacitance (0.
1 µ F) can be used for short-circuit protection.
•...