UCC2585D ,Low Voltage Synchronous Buck Controllerelectrical characteristics, these specifications hold for T = 0C to 85C for the UCC3585 andAT = − ..
UCC2626DW ,Brushless DC Motor Controllermaximum ratings over operating free-air temperature (unless otherwise noted)Supply voltage V . . . ..
UCC2626PW ,Brushless DC Motor ControllerFEATURESoscillator is easily synchronized to an external Two-Quadrant and Four-Quadrant Operationm ..
UCC2626PWG4 ,Brushless DC Motor Controller 28-TSSOP -40 to 85electrical characteristics over recommended operating conditions, VCC = 12 V; CT = 1 nF, R_TACH = 2 ..
UCC27200D ,120V Boot, 3-A Peak, High Frequency, High-Side/Low-Side Driver 8-SOIC -40 to 140 SLUS746C–DECEMBER 2006–REVISED APRIL 20165 Pin Configuration and FunctionsD PackageDDA Package8-Pi ..
UCC27200D ,120V Boot, 3-A Peak, High Frequency, High-Side/Low-Side Driver 8-SOIC -40 to 140Features 3 DescriptionThe UCC2720x family of high-frequency N-channel1• Drives Two N-Channel MOSFET ..
UP04213 ,Composite DeviceComposite TransistorsUP0421x SeriesSilicon NPN epitaxial planar typeUnit : mm+0.050.20(0.30) 0.10±0 ..
UP04214 ,Composite DeviceFeatures• Two elements incorporated into one package5˚123(Transistors with built-in resistor)(0.50) ..
UP04216 ,Composite DeviceFeatures• Two elements incorporated into one package5˚123(Transistors with built-in resistor)(0.50) ..
UP04313 ,Composite DeviceElectrical Characteristics T = 25°C ± 3°Ca• Tr1Parameter Symbol Conditions Min Typ Max UnitCollect ..
UP1B-100-R , Miniature surface mount design
UP1B-220-R , Miniature surface mount design
UCC2585D
Low Voltage Synchronous Buck Controller
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SLUS304F − JULY 1999 − REVISED JANUARY 2005
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FEATURES VOUT Resistor Programmable Down to 0.9 V 3.3-V or 5.0-V Input Supply 1% DC Accuracy High Efficiency Synchronous Switching Drives P-Channel (High Side) and N-Channel
(Low Side) MOSFETs Lossless Programmable Current Limit Logic Compatible Shutdown
APPLICATIONS Local Microprocessor Core Voltage Power
Supplies for Desktop and Notebook
Computers DSP Core or I/O Powering High-Speed GTL Bus Regulation
DESCRIPTIONThe UCC3585 synchronous buck controller
provides flexible high efficiency power conversion
for output voltages as low as 0.9 V with ensured
±1% dc accuracy. With an input voltage range of
3.0 V to 5.5 V, it is the ideal choice for 3.3 V only,
5.0 V only, or other low voltage systems. The fixed
frequency oscillator is capable of providing
practical PWM operation to 500 kHz.
The UCC3585 drives a complementary pair of
power MOSFET transistors. A P-channel on the
high side, and an N-channel on the low side step
down the input voltage at up to 90% efficiency.
A programmable two-level current limiting
function is provided by sensing the voltage drop
across the high side P-channel MOSFET. This
circuit can be configured to provide pulse-
by-pulse limiting, timed shutdown after seven
consecutive faults, or latch-off after fault detec-
tion, allowing maximum application flexibility. The
current limit threshold can be programmed over a
wide range with a single resistor. +
ENABLE
VIN
RTN RTN
UDG−01127
VOUT
VIN = 3.3 V
VOUT = 1.8 V
IOUT = 3 A (max)
2 kΩ
2 kΩ
14 kΩ
R3 100 kΩ
C5 0.1 µ F
C4 0.47 µ F
R2 10 kΩ
150 µ F
10 kΩ
0.47 µ F
150 µ F
10 µ F
C2 5600 pF
C3 47 pF
3.7 µ H
C6 470 pF
SI4562DY
UCC3585 Not Recommended for New Designs
