SP435W
Dual OP AMP with Voltage Regulator
DESCRIPTION
The SP435W is a monolithic IC specifically designed to
control the output current and voltage levels of switch
mode battery chargers and power supplies.
The device contains two operational amplifiers and a
precision shunt regulator. Op Amp 1 is designed for
voltage control, whose non-inverting input internally
connects to the output of the shunt regulator. Op Amp 2
is for current control with both inputs uncommitted. The
IC offers the power converter designer a control
solution that features increased precision with a
corresponding reduction in system complexity and cost.
APPLICATIONS
Battery Power Equipment
Linear Regulators
Switch Power Supply
Cellular Phone
Digital Cameras
Computer Disk Drivers
Instrumentation
FEATURES
Input offset voltage: 0.5mV
Supply current: 250 uA per Op Amp at 5.0V
supply voltage
Unity gain bandwidth: 1MHz
Output voltage swing: 0 to (VCC- 1.5) V
Power supply range: 3 to 18V
Fixed output voltage reference: 2.5V
Voltage tolerance: 1%
Sink current capability from 0.2 to 80mA
PIN CONFIGURATION ( SOP-8 )
PART MARKING
2012/01/05
V.1
Page 1
SYNC-POWER [ SYNC POWER CROP. ]
