The ADP1872 / ADP1873 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-sense gain, current-control scheme. In addition, these devices offer optimum performance at low duty cycles by utilizing valley current-mode control architecture. This allows the ADP1872 / ADP1873 to drive all N-channel power stages to regulate output voltages as low as 0.6 V.The ADP1873 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 (ADP1873) section for more information).Available in three frequency options (300 kHz, 600 kHz, and 1.0 MHz, plus the PSM option), the ADP1872 / ADP1873 are well suited for a wide range of applications. These ICs not only operate from a 2.75 V to 5.5 V bias supply, but also can accept a power input as high as 20 V.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 pre-charged 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 ADP1872 / ADP1873 operate over the −40°C to +125°C junction temperature range and are available in a 10-lead MSOP.APPLICATIONS Telecom and networking systems Mid to High End servers Set-top boxes DSP core power supplies

1 nV/Hz, Low Power, Rail-to-Rail Output Amplifiers Features: Low wideband noise   1 nV/√Hz   2.8 pA/√Hz Low 1/f noise   2.4 nV/√Hz @ 10 Hz Low distortion: −115 dBc @ 100 kHz, VOUT = 2 V p-p Low power: 3 mA/amp Low input offset voltage: 0.5 mV maximum High speed   230 MHz, −3 dB bandwidth       (G = +1)   120 V/μs slew rate   45 ns settling time to 0.1% Rail-to-rail output Wide supply range: 3 V to 10 V Disable feature (ADA4897-1)

OPERATIONAL AMPLIFIER;

LDO VOLTAGE REGULATORS;

MICROPROCESSOR SUPERVISORS / VOLTAGE DET;

TEMPERATURE SENSOR, -40 TO 150DEG C;

Synchronous Current-Mode Buck Controller with Constant On-time, 0.6 V Reference Voltage, and Power Saving Mode Features: Power input voltage as low as 2.75 V to 20 V Bias supply voltage range: 2.75 V to 5.5 V Minimum output voltage: 0.6 V 0.6 V reference voltage with ±1.0% accuracy Supports all N-channel MOSFET power stages Available in 300 kHz, 600 KHz, and 1.0 MHz options No current-sense resistor required Power saving mode (PSM) for light loads (ADP1873 only) Resistor Programmable Current Sense Gain Thermal overload protection Short-circuit protection See data sheet for additional features

High Speed, Dual, 2 A MOSFET Driver, inverting A & non-inverting B input pins Features: Industry-standard-compatible pinout High current drive capability Precise threshold shutdown comparator UVLO with hysteresis Overtemperature warning signal Overtemperature shutdown 3.3 V-compatible inputs Rise time and fall time: 10 ns typical at 2.2 nF load Fast propagation delay See Data Sheet for additional features

Differential Input, 1 MSPS, 12-BIT SAR ADC Features: Fast Throughput Rate: 1 MSPS Specified for VDD of 3 V and 5 V Low Power at max Throughput Rate: - 3.75 mW max at 833 kSPS with 3 V Supplies - 9 mW max at 1MSPS with 5 V Supplies Fully Differential Analog Input Flexible Power/Serial Clock Speed Management Variable Reference Input Wide Input Bandwidth: 70dB SINAD at 300kHz Input Frequency No Pipeline Delays High Speed Serial Interface - SPI®/QSPI™/MicroWire™/DSP Compatible Powerdown Mode: 1µA max

1.8 V to 5 V Auto-Zero, In-Amp with Shutdown Features: Low Offset Voltage: 20 µV max Low Input Offset Drift: 0.1 µV/°C High CMRR: 140 dB typ @ G=100 Non-Linearity 0.001% typ. @ G=100 Wide Gain Range: 0.1 to 10,000 Single Supply Operation: +1.8V to +5.5V Rail-to-Rail Output Shutdown capability