The ADP1762 is a low noise, low dropout (LDO) linear regulator. It is designed to operate from a single input supply with an input voltage as low as 1.10 V, without the requirement of an external bias supply, to increase efficiency and provide up to 2 A of output current.The low 62 mV typical dropout voltage at a 2 A load allows the ADP1762 to operate with a small headroom while maintaining regulation and providing better efficiency.The ADP1762 is optimized for stable operation with small 10 ?F ceramic output capacitors. The ADP1762 delivers optimal transient performance with minimal board area.The ADP1762 is available in fixed output voltages ranging from 0.9 V to 1.5 V. The output of the adjustable output model can be set from 0.5 V to 1.5 V through an external resistor connected between VADJ and ground.The ADP1762 has an externally programmable soft start time by connecting a capacitor to the SS pin. Short-circuit and thermal overload protection circuits prevent damage in adverse conditions. The ADP1762 is available in a small 16-lead LFCSP package for the smallest footprint solution to meet a variety of applications.APPLICATIONS Regulation to noise sensitive applications such as radio frequency (RF) transceivers, analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuits, phase-locked loops (PLLs), voltage controlled oscillators (VCOs) and clocking integrated circuits Field-programmable gate array (FPGA) and digital signal processor (DSP) supplies Medical and healthcare Industrial and instrumentation?

The ADP1763 is a low noise, low dropout (LDO) linear regulator. Itis designed to operate from a single input supply with an inputvoltage as low as 1.10 V without the requirement of an external biassupply to increase efficiency and provide up to 3 A of output current.The low 95 mV typical dropout voltage at a 3 A load allows theADP1763 to operate with a small headroom while maintainingregulation and providing better efficiency.The ADP1763 is optimized for stable operation with small 10 ?Fceramic output capacitors. The ADP1763 delivers optimaltransient performance with minimal board area.The ADP1763 is available in fixed output voltages ranging from0.9 V to 1.5 V. The output of the adjustable output model can beset from 0.5 V to 1.5 V through an external resistor connectedbetween VADJ and ground.The ADP1763 has an externally programmable soft start time byconnecting a capacitor to the SS pin. Short-circuit and thermaloverload protection circuits prevent damage in adverse conditions.The ADP1763 is available in a small 16-lead LFCSP package for thesmallest footprint solution to meet a variety of applications.APPLICATIONS Regulation to noise sensitive applications such as RF transceivers, analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuits, phase-locked loops (PLLs), voltage controlled oscillators (VCOs) and clocking integrated circuits Field-programmable gate array (FPGA) and digital signal processor (DSP) supplies Medical and healthcare Industrial and instrumentation Automotive

The ADP1764 is a low noise, low dropout (LDO) linear regulator. It is designed to operate from a single input supply with an input voltage as low as 1.10 V without the requirement of an external bias supply to increase efficiency and provide up to 4 A of output current (IOUT).The low 47 mV typical dropout voltage at a 4 A load allows theADP1764 to operate with a small headroom while maintainingregulation and providing better efficiency.The ADP1764 is optimized for stable operation with small 22 ?F ceramic output capacitors. The ADP1764 delivers optimal transientperformance with minimal printed circuit board (PCB) area.The ADP1764 is available in fixed output voltages ranging from 0.55 V to 1.5 V. The output voltage (VOUT) of the adjustableoutput model can be set from 0.5 V to 1.5 V through an external resistor connected between VADJ and ground.The ADP1764 has an externally programmable soft start time by connecting a capacitor to the SS pin. Short-circuit and thermaloverload protection circuits prevent damage in adverse conditions.The ADP1764 is available in a small, 16-lead LFCSP package forthe smallest footprint solution to meet a variety of applications.Applications Regulation to noise sensitive applications such as radio frequency (RF) transceivers, analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuits, phase-locked loops (PLLs), voltage controlled oscillators (VCOs) and clocking integrated circuits Field-programmable gate array (FPGA) and digital signal processor (DSP) supplies Medical and healthcare Industrial and instrumentation

The ADP1853 is a wide range input, dc-to-dc, synchronousbuck controller capable of running from commonly used 3.3 Vto 12 V (up to 20 V) voltage inputs. The device nominallyoperates in current mode with valley current sensing providingthe fastest step response for digital loads. It can also beconfigured as a voltage mode controller with low noise andcrosstalk for sensitive loads.The ADP1853 can be used as a master synchronization clockfor the power system and for convenient synchronizationbetween controllers. The CLKOUT signal can synchronizeother devices in the ADP185x family such that slave devicesare phase-shifted from the master to reduce the input ripplecurrent, improve EMI, and reduce the size of the input bulkcapacitance. The ADP1853 can also be configured as a slavedevice for current sharing. Additionally, the ADP1853 includesaccurate tracking, precision enable, and power good functionsfor sequencing. The ADP1853 provides a high speed, high peakcurrent gate driving capability to enable energy efficient powerconversion. The device can be configured to operate in powersaving mode by skipping pulses, reducing switching losses andimproving efficiency at light load and standby conditions.The accurate current limit allows design within a narrowerrange of tolerances and can reduce overall converter size andcost. The ADP1853 can regulate down to 0.6 V output using ahigh accuracy reference with ?1% tolerance over thetemperature range from ?40?C to 125?C.With a wide range input voltage, the ADP1853 is designed toprovide the designer with maximum flexibility for use in avariety of system configurations; loop compensation, soft start,frequency setting, power saving mode, current limit, andcurrent sense gain can all be programmed using externalcomponents. In addition, the external RAMP resistor allowschoosing optimal slope and VIN feedforward in both currentand voltage mode for excellent line rejection. The linearregulator and the boot strap diode for the high-side driver areinternal.Protection features include undervoltage lock out, overvoltage,overcurrent/short circuit, and overtemperature.Applications Intermediate bus and POL systems requiring sequencing and tracking, including Telecom base station and networking Industrial and Instrumentation Medical and healthcare

The ADP1864 is a compact, inexpensive, constant-frequency current-mode step-down dc-to-dc controller. The ADP1864 drives a P-channel MOSFET that regulates an output voltage as low as 0.8 V with ?2% accuracy, for up to 5 A load currents, from input voltages as high as 14 V.The ADP1864 provides system flexibility by allowing accurate setting of the current limit with an external resistor, and the output voltage is easily adjustable using two external resistors. The ADP1864 includes an internal soft start to allow quick power-up while preventing input inrush current. Additional safety features include short-circuit protection, output overvoltage protection, and input undervoltage protection. Current-mode control provides fast and stable load transient performance, while the 580 kHz operating frequency allows a small inductor to be used in the system. To further the life of a battery source, the controller turns on the external P-channel MOSFET 100% of the duty cycle during dropout.The ADP1864 operates over the ?40?C to +125?C temperature range and is available in a small, low profile, 6-lead TSOT package.APPLICATIONS Wireless devices 1- to 3-cell Li-Ion battery-powered applications Set-top boxes Processor core power supplies Hard disk drives

The ADP1870 / ADP1871?are versatile current-mode, synchronous step-down controllers that provide superior transient response, optimal stability, and current-limit protection by using a constant on-time, pseudo-fixed frequency with a programmable current limit, current-control scheme. In addition, these devices offer optimum performance at low duty cycles by utilizing valley current-mode control architecture. This allows the ADP1870 / ADP1871 to drive all N-channel power stages to regulate output voltages as low as 0.6 V.The ADP1871 is the power saving mode (PSM) version of the device and is capable of pulse skipping to maintain output regulation while achieving improved system efficiency at light loads (see the Power Saving Mode (PSM) Version (ADP1871) section for more information).Available in three frequency options (300 kHz, 600 kHz, and 1.0 MHz, plus the PSM option), the ADP1870 / ADP1871 are well suited for a wide range of applications that require a single-input power supply range from 2.95 V to 20 V. Low voltage biasing is supplied via a 5 V internal LDO.In addition, an internally fixed soft start period is included to limit input in-rush current from the input supply during startup and to provide reverse current protection during soft start for a precharged output. The low-side current-sense, current-gain scheme and integration of a boost diode, along with the PSM/forced pulse width modulation (PWM) option, reduce the external part count and improve efficiency.The ADP1870 / ADP1871 operate over the -40?C to +125?C junction temperature range and are available in 10-lead MSOP package.

Demonstration circuit 1128A is a dual channel synchronous, 2.25MHz Step-Down DC/DC Regulator featuring the LTC3419. The DC1128A has an input voltage range of 2.5V to 5.5V. Both jumper selectable 3.3V/2.5V and 1.2V/1.5V/1.8V outputs are capable of delivering up to 600mA of output current. The device also features independent internal soft-start for each channel.

DC1133A-A: Demo Board for the LTC2242-12 12-Bit, 250Msps ADC.

DC1147A-E: Demo Board for the LTC6403-1 200MHz, Low Noise, Low Power Fully Differential Input/Output Amplifier/Driver

Demonstration circuit DC1154 is a Telecom non isolated DC/DC converter featuring the LTC3873 constant frequency current mode flyback controller. The DC1154 converts 36V to 72V input voltage to an isolated 3A of output current at 3.3V. The 200kHz constant frequency operation is maintained down to very light load to reduce low frequency noise generated over a wide range of load current. The DC1154 also provides an isolated design by installing the optocoupler and LTC4430 related circuitry. The demonstration circuit can be easily modified to generate different output voltages up to 15V. As output voltage is increased, the maximum output current must be reduced to limit the output power to no more than 10W.