| Voltage Regulators - DC DC Switching Regulators | 1 | Unknown | |
ADP2116Configurable, Dual 3 A/Single 6 A, Synchronous, Step-Down DC-to-DC Regulator | Voltage Regulators - DC DC Switching Regulators | 1 | Active | The ADP2116 is a versatile, synchronous, step-down switching regulator that satisfies a wide range of customer point-of-load requirements. The two PWM channels can be configured to deliver independent outputs at 3 A and 3 A (or at 3 A and 2 A) or can be configured as a single interleaved output capable of delivering 6 A. The two PWM channels are 180° phase shifted to reduce input ripple current and input capacitance.The ADP2116 provides high efficiency and can operate at switching frequencies of up to 2 MHz. At light loads, the ADP2116 can be set to operate in pulse skip mode for higher efficiency or in forced PWM mode for noise sensitive applications.The ADP2116 is designed with an optimized slew rate to reduce EMI emissions, allowing the device to power sensitive, high perfor-mance signal chain circuits. The switching frequency can be set to 300 kHz, 600 kHz, or 1.2 MHz, or it can be synchronized to an external clock that minimizes the system noise. The bidirectional synchronization pin is also configurable as a 90° out-of-phase output clock, providing the possibility for a stackable multiphase power solution.The ADP2116 input voltage range is from 2.75 V to 5.5 V and can convert to a fixed output of 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, or 3.3 V that can be set independently for each channel using external resistors. If a resistor divider is used, the output voltage can be set as low as 0.6 V. The ADP2116 operates over the −40°C to +125°C junction temperature range.ApplicationsPoint-of-load regulationTelecommunications and networking systemsConsumer electronicsIndustrial and instrumentationMedical |
| PMIC | 6 | Active | |
ADP21192A, 1.2MHz Synchronous Step-Down DC-to-DC Regulator | PMIC | 7 | Active | The ADP2119 /ADP2120are low quiescent current, synchronous, step-down DC-to -DC regulators in a compact 3mm x 3mm LFCSP_WD package. Both Devices use current mode, constant frequency pulse-width modulation (PWM) control scheme for excellent stability and transient response. Under light load condition, they can be configured to operate in pulse frequency modulation (PFM) mode that reduces switching frequency to save power.The ADP2119 / ADP2120 can support input voltages from 2.3V to 5.5V. The output voltage can be adjusted from 0.6V to input voltage (VIN) for the adjustable version, while the fixed output version is available in preset output voltage options of 3.3V, 2.5V, 1.8V, 1.5V ,1.2V and 1.0V. The ADP2119 / ADP2120 require minimal external parts and provide a high efficiency solution with their integrated power switches, synchronous rectifier, and internal compensation. Each IC draws less than 3 μA current from the input source when it is disabled. Other key features include under voltage lockout(UVLO), integrated soft start to limit inrush current at startup, overvoltage protection (OVP), over current protection (OCP) and thermal shutdown (TSD).APPLICATIONSPoint of load conversionCommunications and networking equipmentIndustrial and instrumentationConsumer electronicsMedical appliances |
ADP21201.25A, 1.2MHz Synchronous Step-Down DC-to-DC Regulator | DC/DC & AC/DC (Off-Line) SMPS Evaluation Boards | 4 | Active | TheADP2119/ ADP2120 are low quiescent current, synchronous, step-down DC-to -DC regulators in a compact 3mm x3mm LFCSP_WD package. Both Devices use current mode, constant frequency pulse-width modulation (PWM) control scheme for excellent stability and transient response. Under light load condition, they can be configured to operate in pulse frequency modulation (PFM) mode that reduces switching frequency to save power.The ADP2119/ADP2120 can support input voltages from 2.3V to 5.5V. The output voltage can be adjusted from 0.6V to input voltage (VIN) for the adjustable version, while the fixed output version is available in preset output voltage options of 3.3V, 2.5V, 1.8V, 1.5V ,1.2V and 1.0V. The ADP2119/ADP2120 require minimal external parts and provide a high efficiency solution with their integrated power switches, synchronous rectifier, and internal compensation. Each IC draws less than 3 μA current from the input source when it is disabled. Other key features include under voltage lockout(UVLO), integrated soft start to limit inrush current at startup, overvoltage protection (OVP), over current protection (OCP) and thermal shutdown (TSD).APPLICATIONSPoint of load conversionCommunications and networking equipmentIndustrial and instrumentationConsumer electronicsMedical appliances |
| Integrated Circuits (ICs) | 3 | Obsolete | |
ADP2125Low Profile, 500 mA, 6 MHz, Synchronous Step-Down, DC-to-DC Converter | Power Management (PMIC) | 1 | Active | The ADP2125 is a high frequency, step-down, dc-to-dc converter optimized for portable applications in which board area and battery life are critical constraints. Fixed frequency operation at 6 MHz enables the use of tiny ceramic inductors and capacitors. Additionally, the synchronous rectification improves efficiency and results in fewer external components. Over all load currents, the device uses a voltage regulating pulse-width modulation (PWM) mode that maintains a constant frequency with excellent stability and transient response. The ADP2125 is enabled by a 6 MHz to 27 MHz external clock signal applied to the EXTCLK pin. When the external clock is not switching and in a low state (EXTCLK ≤ 0.5 V), the input is disconnected from the output and draws less than 0.3 μA (typical) from the source.The ADP2125 has an input voltage range of 2.1 V to 5.5 V, allowing the use of single Li+/Li polymer cell, three-cell alkaline, NiMH cell, and other standard power sources. The ADP2125 is internally compensated to minimize external components and can source up to 500 mA. Other key features such as cycle-by-cycle peak current limit, soft start, undervoltage lockout (UVLO), output-to-ground short-circuit protection, and thermal shutdown provide protection for internal and external circuit components.APPLICATIONSMobile phonesDigital still/video camerasDigital audioPortable equipmentCamera modulesImage stabilization systems |
| Power Management (PMIC) | 2 | Active | |
ADP2138Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter | Integrated Circuits (ICs) | 10 | Active | The ADP2138 andADP2139are high efficiency, low quiescent current, synchronous step-down dc-to-dc converters. The ADP2139 has the additional feature of an internal discharge switch. The total solution requires only three tiny external components. When the MODE pin is set high, the buck regulator operates in forced PWM mode, which provides low peak-to-peak ripple for power supply noise sensitive loads at the expense of light load efficiency. When the MODE pin is set low, the buck regulator automatically switches operating modes, depending on the load current level. At higher output loads, the buck regulator operates in PWM mode. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving light load efficiency.The ADP2138/ADP2139 operate on input voltages of 2.3 V to 5.5 V, which allows for single lithium or lithium polymer cell, multiple alkaline or NiMH cell, PCMCIA, USB, and other standard power sources. The maximum load current of 800 mA is achievable across the input voltage range.The ADP2138/ADP2139 are available in fixed output voltages of 3.3 V, 3.0 V, 2.8 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, 1.0 V, and 0.8 V. All versions include an internal power switch and synchronous rectifier for minimal external part count and high efficiency. The ADP2138/ADP2139 have internal soft start and they are internally compensated. During logic controlled shutdown, the input is disconnected from the output and the ADP2138/ADP2139 draw 0.2 μA (typical) from the input source.Other key features include undervoltage lockout to prevent deep battery discharge, and soft start to prevent input current overshoot at startup. The ADP2138/ADP2139 are available in a 6-ball wafer level chip scale package (WLCSP).ApplicationsPDAs and palmtop computersWireless handsetsDigital audio, portable media playersDigital cameras, GPS navigation units |
ADP2139Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter with an Internal Discharge Switch | DC/DC & AC/DC (Off-Line) SMPS Evaluation Boards | 7 | Active | TheADP2138and ADP2139 are high efficiency, low quiescent current, synchronous step-down dc-to-dc converters. The ADP2139 has the additional feature of an internal discharge switch. The total solution requires only three tiny external components. When the MODE pin is set high, the buck regulator operates in forced PWM mode, which provides low peak-to-peak ripple for power supply noise sensitive loads at the expense of light load efficiency. When the MODE pin is set low, the buck regulator automatically switches operating modes, depending on the load current level. At higher output loads, the buck regulator operates in PWM mode. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving light load efficiency.The ADP2138/ADP2139 operate on input voltages of 2.3 V to 5.5 V, which allows for single lithium or lithium polymer cell, multiple alkaline or NiMH cell, PCMCIA, USB, and other standard power sources. The maximum load current of 800 mA is achievable across the input voltage range.The ADP2138/ADP2139 are available in fixed output voltages of 3.3 V, 3.0 V, 2.8 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, 1.0 V, and 0.8 V. All versions include an internal power switch and synchronous rectifier for minimal external part count and high efficiency. The ADP2138/ADP2139 have internal soft start and they are internally compensated. During logic controlled shutdown, the input is disconnected from the output and the ADP2138/ADP2139 draw 0.2 μA (typical) from the input source.Other key features include undervoltage lockout to prevent deep battery discharge, and soft start to prevent input current overshoot at startup. The ADP2138/ADP2139 are available in a 6-ball wafer level chip scale package (WLCSP).ApplicationsPDAs and palmtop computersWireless handsetsDigital audio, portable media playersDigital cameras, GPS navigation units |
