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ADP2114:  CONFIGURABLE, DUAL 2 A/SINGLE 4 A, SYNCHRONOUS STEP-DOWN DC-TO-DC REGULATOR

The ADP2114 is a highly versatile, synchronous step-down, switching regulator that can be configured to satisfy a wide range of customer point of load requirements. The two PWM channels can be configured to deliver independent outputs at 2 A and 2 A (or 3 A/1 A) or can be configured as a single interleaved output capable of delivering 4 A. The two PWM channels are 180º phase shifted to reduce ...More

ADP2114:  Configurable, Dual 2 A/Single 4 A, Synchronous Step-Down DC-to-DC Regulator

Product Description

The ADP2114 is a highly versatile, synchronous step-down, switching regulator that can be configured to satisfy a wide range of customer point of load requirements. The two PWM channels can be configured to deliver independent outputs at 2 A and 2 A (or 3 A/1 A) or can be configured as a single interleaved output capable of delivering 4 A. The two PWM channels are 180º phase shifted to reduce input ripple current and reduce input capacitance.

The ADP2114 provides high efficiency performance at full loads, enabling high switching frequencies at up to 1.2 MHz. At light loads, the ADP2114 can be set to operate in pulse skip mode for higher efficiency or in forced PWM mode to reduce EMI.

The device is designed with an optimized gate slew rate to reduce ENI emissions, allowing the device to supply sensitive, high performance signal chain applications. The frequency can be set to 300 kHz, 600 kHz and 1.2 MHz and can be synchronized to an external clock signal, minimizing the system noise between converters. The bidirectional synchronization pin is also configurable as a 90º out-of-phase output clock, providing the possibility for a stackable multiphase power solution. The ADP2114 input voltage range is from 2.75 V to 5.5 V, and it converts to fixed outputs 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. Using a resistor divider, it is also possible to set the output voltage as low as 0.6 V. The ADP2114 operates over the −40°C to +125°C junction temperature range.


Applications
  • Point-of-load regulation
  • Telecom and networking systems
  • Consumer electronics
  • Industrial and Instrumentation
  • Medical

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    • Configurable 3 A/1 A or 2 A/2 A dual output load combinations or 4 A combined single output
    • High efficiency: up to 95%
    • Input voltage VIN: 2.75 V to 5.5 V
    • Selectable fixed output: 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V or adjustable output voltage to 0.6 V minimum
    • ±1.5% accuracy reference voltage
    • Selectable fixed switching frequency: 300 kHz, 600 kHz, or 1.2 MHz
    • Optimized gate slew rate for reduced EMI
    • External synchronization or internal clock output
    • Dual-phase, 180° shifted PWM channels
    • Current mode for fast transient response, no current sense resistor required
    • Pulse-skip under light load or forced PWM operation
    • See data sheet for additonal features

    Functional Block Diagram for ADP2114

    Circuits from the Lab

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    *The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.