ADP2118 3 A, 1.2 MHz/600 kHz High Efficiency Synchronous Step-Down DC-to-DC Regulator
The ADP2118 is a low quiescent current, synchronous, step-down, dc-to-dc regulator in a compact 4mm × 4mm LFCSP_WQ package. It uses a current mode, constant frequency pulse-width modulation (PWM) control scheme for excellent stability and transient response. Under light loads, the ADP2118 can be configured to operate in pulse frequency modulation (PFM) mode that reduces switching frequency to save power.
Applications
Point of load conversion
Communications and networking equipments
Industrial and instrumentation
Consumer electronics
Medical appliances
The ADP2118 runs from input voltages of 2.3 V to 5.5 V. The output voltage of the ADP2118ACPZ-R7 is adjustable from 0.6 V to input voltage (VIN), and the ADP2118ACPZ-x.x-R7 are available in preset output voltage options of 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, and 1.0 V. The ADP2118 requires minimal external parts and provides a high efficiency solution with its integrated power switch, synchronous rectifier, and internal compensation. The IC draws less than 3 μA from the input source when it is disabled. Other key features include undervoltage lockout (UVLO), integrated soft start to limit inrush current at startup, overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown (TSD).
Features and Benefits- 3A continuous output current
- 75 mΩ and 40 mΩ integrated FET
- ±1.5 % Output Accuracy
- Input voltage range from 2.3 V to 5.5 V
- Output Voltage from 0.6V to VIN
- 600kHz or 1.2MHz fixed switching frequency
- Synchronizable between 600kHz and 1.4MHz
- Selectable Synchronize Phase Shift: 0° or 180°
- Selectable PWM or PFM Mode operation
- Current Mode Architecture
- Precision enable input
- See data sheet for additional features
| Design Tools |
Data Sheets
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| ADP2118ACPZ-1.0-R7 Last Time Buy | 16 ld LFCSP (4x4mm, 2.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 1.43 | Y |
| ADP2118ACPZ-1.2-R7 Production | 16 ld LFCSP (4x4mm, 2.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 1.43 | Y |
| ADP2118ACPZ-1.5-R7 Last Time Buy | 16 ld LFCSP (4x4mm, 2.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 1.43 | Y |
| ADP2118ACPZ-1.8-R7 Last Time Buy | 16 ld LFCSP (4x4mm, 2.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 1.43 | Y |
| ADP2118ACPZ-2.5-R7 Last Time Buy | 16 ld LFCSP (4x4mm, 2.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 1.43 | Y |
| ADP2118ACPZ-3.3-R7 Production | 16 ld LFCSP (4x4mm, 2.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 1.43 | Y |
| ADP2118ACPZ-R2 Production | 16 ld LFCSP (4x4mm, 2.5mm exposed pad) | REEL 250 | -40 to 125C | 2 | 2 | Y |
| ADP2118ACPZ-R7 Production | 16 ld LFCSP (4x4mm, 2.5mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 1.43 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| ADP2118-EVALZ | Evaluation Board | 60 | Y |
