CP3800
Switching Regulator Power Controller
Features
• Wide supply voltage operating range: 1.8 to13 V
• Low current consumption: Typically 5.5 mA
in operation, 1
µA
or less in stand-by
• High speed operation is possible: Maximum
1 MHz
• The error amplifier gain is set inside the IC,
so peripheral components are minimized.
• Incorporates a soft start circuit.
• Incorporates a timer-latch type short circuit
detection circuit (SCP).
• Totem-pole type output with adjustable on/off
current (for NPN transistors)
• Incorporates a stand-by function.
General Description
The
CP3800
is a single-channel switching
regulator control IC for low voltage applications
incorporating a soft start function and short circuit
detection function. The device has a low minimum
operating voltage of 1.8 V and is ideal for the
power supply of battery-operated electronic
equipment.
The
CP3800
can be operated on two types: non-
insulated input/output choppers (step-up, step-
down , and insulated input/output converters (fly-
back). The former type is used for DC/DC
converters and the latter type is used for DC/DC
converts and line-operation-type power supplies.
Applications
• Power source for battery-powered equipment
• Power source for cameras, camcorders, VCRs,
PDAs, electronic data banks, and hand-held
Communication equipment
Block Diagram
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 1 of 19
Rev 1.0 Mar.31,2003
Fax:886-3-3521052
CERAMATE [ CERAMATE TECHNICAL ]
