Overview
The ADP2114ACPZ-R2, produced by Analog Devices Inc., is a high-efficiency, dual, fixed switching frequency, synchronous step-down DC-DC converter. This versatile component is designed to meet a wide range of customer point-of-load requirements. It features a flex mode architecture, allowing for adjustable output voltages and selectable switching frequencies. The ADP2114 is particularly suited for applications requiring high performance, low EMI, and robust protection features.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.75 V to 5.5 V | V |
| Output Voltage Options | Fixed: 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V; Adjustable: Minimum 0.6 V | V |
| Output Current | Dual 2 A/2 A or 3 A/1 A; Single combined 4 A | A |
| Switching Frequency | 300 kHz, 600 kHz, 1.2 MHz; Synchronized from 200 kHz to 2 MHz | kHz |
| Phase Shift Between Channels | 180 Degrees | Degrees |
| Efficiency | High Efficiency | % |
| Package Type | 32-lead 5 mm × 5 mm LFCSP | - |
| Operating Temperature Range | -40°C to +85°C | °C |
| Protection Features | Overcurrent, Thermal Overload, Input Undervoltage Lockout (UVLO) | - |
Key Features
- Dual-phase, 180° phase shifted PWM channels to reduce input ripple current and input capacitance.
- Selectable switching frequency: 300 kHz, 600 kHz, 1.2 MHz, or synchronized from 200 kHz to 2 MHz.
- Optimized gate slew rate for reduced EMI emissions.
- Pulse skip mode for higher efficiency at light loads or forced PWM mode to reduce EMI.
- Independent enable inputs and power good outputs.
- Externally programmable soft start.
- Current mode control for fast transient response.
- Bidirectional synchronization pin configurable as a clock output.
Applications
- Point of load regulation.
- Telecommunications and networking systems.
- Consumer electronics.
- Industrial and instrumentation systems.
- Medical devices.
Q & A
- What is the input voltage range of the ADP2114?
The input voltage range of the ADP2114 is from 2.75 V to 5.5 V.
- What are the output voltage options for the ADP2114?
The ADP2114 offers fixed output voltages of 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V, as well as an adjustable output voltage down to a minimum of 0.6 V.
- What are the switching frequency options for the ADP2114?
The ADP2114 can operate at switching frequencies of 300 kHz, 600 kHz, or 1.2 MHz, and can be synchronized to an external clock from 200 kHz to 2 MHz.
- How does the ADP2114 reduce EMI emissions?
The ADP2114 reduces EMI emissions through an optimized gate slew rate and the option to operate in forced PWM mode.
- What protection features does the ADP2114 include?
The ADP2114 includes overcurrent protection, thermal overload protection, and input undervoltage lockout (UVLO).
- Can the ADP2114 be configured for a single output?
Yes, the ADP2114 can be configured to deliver a single interleaved output capable of 4 A by combining the two PWM channels.
- How is the soft start time programmed on the ADP2114?
The soft start time is programmed by placing a capacitor from the SS pin to GND; the capacitor value determines the soft start period.
- What is the operating temperature range of the ADP2114?
The operating temperature range of the ADP2114 is from -40°C to +85°C.
- What package type is the ADP2114 available in?
The ADP2114 is available in a 32-lead 5 mm × 5 mm LFCSP package.
- Does the ADP2114 support external synchronization?
Yes, the ADP2114 supports external synchronization through a bidirectional synchronization pin.
