DC1317A-D: Demo Board for LT1952 Single Switch Synchronous Forward Controller.

DC1331D: Demo Board for LTC6802-1 - Multicell Battery Stack Monitor

DC1335B-B: Demo Board for the LTC4269-1 - IEEE 802.3at PD with Synchronous No-Opto Flyback Controller

The ADP5074 is a high performance dc-to-dc inverting regulator used to generate negative supply rails.The input voltage range of 2.85 V to 15 V supports a wide variety of applications. The integrated main switch enables the generation of an adjustable negative output voltage down to 39 V below the input voltage.The ADP5074 operates at a pin selected 1.2 MHz/2.4 MHz switching frequency. The ADP5074 can synchronize with an external oscillator from 1.0 MHz to 2.6 MHz to ease noise filtering in sensitive applications. The regulator implements programmable slew rate control circuitry for the MOSFET driver stage to reduce electromagnetic interference (EMI).The ADP5074 includes a fixed internal or resistor programmable soft start timer to prevent inrush current at power-up. During shutdown, the regulator completely disconnects the load from the input supply to provide a true shutdown. A power good pin is available to indicate the output is stable.Other key safety features in the ADP5074 include overcurrent protection (OCP), overvoltage protection (OVP), thermal shutdown (TSD), and input undervoltage lockout (UVLO).The ADP5074 is available in a 16-lead LFCSP and is rated for a ?40?C to +125?C operating junction temperature range.Applications Bipolar amplifiers, ADCs, digital-to-analog converters (DACs), and multiplexers High speed converters Radio frequency (RF) power amplifier (PA) bias Optical modules

The ADP5133 combines two high performance buck regulators in a tiny, 16-ball, 2 mm ? 2 mm WLCSP to meet demanding performance and board space requirements.The high switching frequency of the buck regulators enables tiny multilayer external components and minimizes the board space. When the MODE pin is set high, the buck regulators operate in forced PWM mode. When the MODE pin is set low and the buck regulators operate in PWM mode, the load current is above a predefined threshold. When the load current falls below a predefined threshold, the regulators operate in power save mode (PSM), improving the light load efficiency.The two bucks operate out of phase to reduce the input capacitor requirement and noise.The regulators in the ADP5133 are activated through dedicated enable pins. The output voltages can be externally set through a resistor feedback network.Applications Power for processors, ASICs, FPGAs, and RF chipsets Portable instrumentation and medical devices Space constrained devices

The ADP5360 combines one high performance linear charger?for a single lithium-ion (Li-Ion)/lithium-polymer (Li-Poly)?battery with a programmable, ultralow quiescent current fuel?gauge and battery protection circuit, one ultralow quiescent?buck, one buck boost switching regulator, and a supervisory?circuit that can monitor output voltage.The ADP5360 charger operates at up to 6.8 V to prevent USB?bus spiking during disconnect or connect scenarios.The ADP5360 features an internal isolation field effect transistor?(FET) between the linear charger output and the battery node.?The full battery protection features are activated when the device is?in the battery overcharge and overdischarge fault conditions.The ADP5360 fuel gauge uses a voltage-based algorithm with?an adaptive filter limitation solution. The fuel gauge reports?real-time battery state of charge (SOC) for the rechargeable?Li-Ion battery with ultralow quiescent current.The ADP5360 buck regulator operates at 1.0 MHz switching?frequency in forced pulse-width modulation (FPWM) mode.?In hysteresis mode, the regulator achieves excellent efficiency at?a low output power.The ADP5360 buck boost regulator only operates in hysteresis?mode and outputs a voltage less than or greater than the battery?voltage.The ADP5360 supervisory circuits monitor the regulator output?voltage and provide a power-on reset signal to the system. A?watchdog timer and an external pushbutton can reset the?microprocessor.The I2C-compatible interface enables the programmability of all?battery charging parameters, the protection threshold, the buck?output voltage, and the status bit readback.The ADP5360 operates over the ?40?C to +85?C junction?temperature range and is available in a 32-ball, 2.56 mm נ2.56 mm wafer level chip scale package (WLCSP).Applications Rechargeable Li-Ion/Li-Poly battery-powered devices Portable consumer devices Portable medical devices Wearable devices

The ADP5587 is an I/O port expander and keypad matrix designed for QWERTY type phones that require a large keypad matrix and expanded I/O lines. I/O expander ICs are used in mobile platforms as a solution to the limited number of GPIOs available in the main processor.In its small 2 mm ? 2 mm package, the ADP5587 contains?enough power to handle all key scanning and decoding and to flag the processor of key presses and releases via the I2C interface and interrupt. The ADP5587 frees the main microprocessor from the need to monitor the keypad, thereby?minimizing current drain and increasing processor bandwidth. The ADP5587 is also equipped with a buffer/FIFO and key?event counter to handle and keep track of up to 10 unprocessed key or GPI events with overflow wrap and interrupt capability.The ADP5587 has keypad lock capability with an option to trigger or not trigger an interrupt at key presses and releases. All communication to the main processor is done using one interrupt line and two I2C-compatible interface lines. The ADP5587 can be configured as a keypad matrix of up to 8 rows ? 10 columns (a maximum of 80 keys).When the ADP5587 is used for smaller keypad matrices, unused row and column pins can be reconfigured to act as general-purpose inputs or outputs. R0 to R7 denote the row pins of the matrix, whereas C0 to C9 denote the column pins. At power-up, all rows and columns default to GPIs and must be programmed to function as part of the keypad matrix or as GPOs.Two options for I2C addresses exist for the LFCSP package to reduce the chance of port contention and allow up to two?ADP5587 ICs to operate on the same I2C bus (see the Ordering Guide).Applications Keypad and I/O expander designed for QWERTY type phones that require a large keypad matrix

The ADP7104 is a CMOS, low dropout linear regulator that operates from 3.3 V to 20 V and provides up to 500 mA of output current. This high input voltage LDO is ideal for regulation of high performance analog and mixed signal circuits operating from 19 V to 1.22 V rails. Using an advanced proprietary architecture, it provides high power supply rejection, low noise, and achieves excellent line and load transient response with just a small 1 ?F ceramic output capacitor.The ADP7104 is available in seven fixed output voltage options and an adjustable version, which allows output voltages that range from 1.22 V to VIN ? VDO via an external feedback divider.The ADP7104 output noise voltage is 15 ?V rms and is independent of the output voltage. A digital power-good output allows power system monitors to check the health of the output voltage. A user programmable precision undervoltage lockout function facilitates sequencing of multiple power supplies. The ADP7104 is available in 8-lead, 3 mm ? 3 mm LFCSP and 8-lead SOIC packages. The LFCSP offers a very compact solution and also provides excellent thermal performance for applications requiring up to 500 mA of output current in a small, low-profile footprint. APPLICATIONS Regulation to noise sensitive applications:?ADC, DAC circuits, precision amplifiers, high frequency oscillators, clocks, and PLLs Communications and infrastructure Medical and healthcare Industrial and instrumentation

The ADP7104 is a CMOS, low dropout linear regulator that operates from 3.3 V to 20 V and provides up to 500 mA of output current. This high input voltage LDO is ideal for regulation of high performance analog and mixed signal circuits operating from 19 V to 1.22 V rails. Using an advanced proprietary architecture, it provides high power supply rejection, low noise, and achieves excellent line and load transient response with just a small 1 ?F ceramic output capacitor.The ADP7104 is available in seven fixed output voltage options and an adjustable version, which allows output voltages that range from 1.22 V to VIN ? VDO via an external feedback divider.The ADP7104 output noise voltage is 15 ?V rms and is independent of the output voltage. A digital power-good output allows power system monitors to check the health of the output voltage. A user programmable precision undervoltage lockout function facilitates sequencing of multiple power supplies. The ADP7104 is available in 8-lead, 3 mm ? 3 mm LFCSP and 8-lead SOIC packages. The LFCSP offers a very compact solution and also provides excellent thermal performance for applications requiring up to 500 mA of output current in a small, low-profile footprint. APPLICATIONS Regulation to noise sensitive applications:?ADC, DAC circuits, precision amplifiers, high frequency oscillators, clocks, and PLLs Communications and infrastructure Medical and healthcare Industrial and instrumentation

The ADP7118 is a CMOS, low dropout (LDO) linear regulator that operates from 2.7 V to 20 V and provides up to 200 mA of output current. This high input voltage LDO is ideal for the regulation of high performance analog and mixed-signal circuits operating from 19 V down to 1.2 V rails. Using an advanced proprietary architecture, the device provides high power supply rejection, low noise, and achieves excellent line and load transient response with a small 2.2 ?F ceramic output capacitor. The ADP7118 regulator output noise is 11 ?V rms independent of the output voltage for the fixed options of 5 V or less.The ADP7118 is available in 16 fixed output voltage options. The following voltages are available from stock: 1.2 V (adjustable), 1.8 V, 2.5 V, 3.3 V, 4.5 V, and 5.0 V.Additional voltages available by special order are 1.5 V, 1.85 V, 2.0 V, 2.2 V, 2.75 V, 2.8 V, 2.85 V, 3.8 V, 4.2 V, and 4.6 V.Each fixed output voltage can be adjusted above the initial set point with an external feedback divider. This allows the ADP7118 to provide an output voltage from 1.2 V to VIN ? VDO with high PSRR and low noise. User programmable soft start with an external capacitor is available in the LFCSP and SOIC packages.The ADP7118 is available in a 6-lead, 2 mm ? 2 mm LFCSP making it not only a very compact solution, but it also provides excellent thermal performance for applications requiring up to 200 mA of output current in a small, low profile footprint. The ADP7118 is also available in a 5-lead TSOT and an 8-lead SOIC.Applications Regulation to noise sensitive applications ADC and DAC circuits, precision amplifiers, power for VCO VTUNE control Communications and infrastructure Medical and healthcare Industrial and instrumentation Supported by ADIsimPower too