| No. | Partie # | Fabricant | Description | Fiche Technique |
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Semtech |
Synchronous Buck Converter Features Less than 1mV Supply Ripple Output Voltage Regulated by Either the Switching Regulator or Linear Regulator Dynamic Handover Between Linear and Switching Regulator for Maximum Efficiency 2.7V to 5.5V Input Range 300mA Guaranteed Ou |
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Semtech Corporation |
PROGRAMMABLE/ HIGH PERFORMANCE MULTI-PHASE/ PWM CONTROLLER under-voltage lock-out with hysteresis and overcurrent protection. FEATURES • Allows use of small surface mount components • Ultra fast transient recovery time • Wide, High frequency operating range • Selectable 2, 3, 4 phase operation • Floating fe |
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SEMTECH ELECTRONICS |
NPN Silicon Epitaxial Planar Transistor O C C at VCE=6V, IC=150mA Collector Saturation Voltage at IC=100mA, IB=10mA Base Saturation Voltage at IC=100mA, IB=10mA Collector Cutoff Current at VCB=60V at VEB=5V Gain Bandwidth Product at VCE=10V, IC=1mA Output Capacitance at VCB=10V, f=1MHz |
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SEMTECH |
NPN Silicon Transistor e at IE=50µA Collector Cutoff Current at VCB=60V Emitter Cutoff Current at VEB=5V Collector Saturation Voltage at IC=50mA, IB=5mA Gain Bandwidth Product at VCE=12V, IC=2mA Output Capacitance at VCB=12V, f=1MHz COB 2 3.5 pF fT 180 MHz VCE(sat) 0.4 V I |
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Semtech Corporation |
Asynchronous Voltage Mode PWM Controller Low cost / small size Switch mode efficiency up to 95% 1% reference voltage accuracy Over current protection 500mA output drive SO-8 package SC1101 features include a temperature compensated voltage reference, triangle wave oscillator, c |
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SEMTECH |
NPN Silicon Transistor |
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SEMTECH |
Voltage Mode PWM Controller SC1105/6 Voltage Mode PWM Controller PRELIMINARY The SC1105 is an asynchronous voltage mode PWM controller for applications that require an option of two voltages. An input is provided to select either the input voltage (VIN) or a user programmed v |
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Semtech Corporation |
Synchronous PWM Controller The SC1109 was designed for the latest high speed motherboards. It combines a synchronous voltage mode controller (switching section) with two low-dropout linear regulator controllers. The voltage mode controller provides the power supply for the sy |
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Semtech Corporation |
0.8AMP POSITIVE VOLTAGE REGULATOR include temperature compensated voltage reference, triangle wave oscillator and current sense comparator circuitry, and allows the use of inexpensive N-channel power switches. The SC1110 operates at a fixed 250kHz, providing an optimum compromise bet |
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Semtech Corporation |
SINK AND SOURCE DC/DC CONTROLLER FOR TERMINATION POWER SUPPLY APPLICATIONS include temperature compensated voltage reference, triangle wave oscillator and current sense comparator circuitry, and allows the use of inexpensive N-channel power switches. The SC1110 operates at a fixed 250kHz, providing an optimum compromise bet |
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Semtech Corporation |
HIGH-EFFICIENCY STEP-UP DC-DC CONVERTER • 4V to 24V input voltage operation • Adjustable output voltage • Low quiescent current at 100µA • Pulse-skipping and pulse-frequency modulation • • • maintain high efficiency (max. 95%) 90kHz to 250kHz oscillator frequency Power-saving shutdown mode |
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SEMTECH |
NPN Silicon Transistor |
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Semtech Corporation |
PRECISION SHUNT VOLTAGE REFERENCE •= Trimmed bandgap design (0.8%, 0.32% for •= Wide operating current range 20µA to 20mA •= Low dynamic impedance (0.2Ω) •= SO-8 package APPLICATIONS •= •= •= •= Micropower circuitry Portable meters Battery powered systems Temperature sensors SC1004A |
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Semtech Corporation |
HIGH SPEED SYNCHRONOUS POWER MOSFET DRIVER Fast rise and fall times (15ns typical with 3000pf load) 3 Amp peak drive current 14ns max Propagation delay (BG going low) Adaptive Non-overlapping Gate Drives provide shoot-through protection Floating top drive switches up to 25V Under- |
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Semtech Corporation |
DUAL 150mA LDO REGULATOR WITH PROGRAMMABLE RESET •= Up to 150mA per regulator output •= Low quiescent current •= Low dropout voltage •= Wide selection of output voltages •= Stable operation with ceramic caps •= Tight load and line regulation •= Current and thermal limiting •= Reverse input polarity |
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Semtech Corporation |
200mA & 250mA SmartLDOs Glitch-free transition between input sources Internal logic selects input source Gate drive for external PMOS bypass switch 5V detection with hysteresis 1% regulated output voltage accuracy 200mA load current capability (250mA for SC1531A) Remote sen |
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Semtech Corporation |
MICROPOWER INVERTING DC-DC CONVERTER • 2.4V to 7V input voltage operation • Adjustable output voltage up to -40V • Low quiescent current at 80µA • Pulse frequency modulation maintains high • • • efficiency (max 87%) 70kHz to 160kHz switching frequency Power-saving shutdown mode (0.7µA t |
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Semtech Corporation |
Portable Pentium Dual Phase Power Supply Controller extended Intel Mobile Voltage Positioning (IMVP) to increase battery life by reducing the voltage at the processor when it is heavily loaded. It directly supports Intel’s SpeedStep™ requirements for even longer battery life. The SC1474 automatically |
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Semtech |
1.5A Synchronous Buck Converter Up to 93% efficiency 1.00V/1.05V/1.20V/1.80V selectable output voltage Output current — 1.5A Quiescent current — 17μA Input range — 2.7V to 5.5V Dynamic voltage positioning capability Fixed 1MHz frequency or 750kHz to 1.25M |
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Semtech |
500mA Synchronous Step Down DC-DC Regulator Input Voltage — 2.9V to 5.5V Output Voltage — 0.8V to 3.3V Output current capability — 500mA Efficiency up to 94% 15 Programmable output voltages Fast transient response Oscillator frequency — 3.5MHz 100% duty cycle capability |
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