NCP1595: Synchronous Buck Regulator, 1 MHz, 1.5 A
The NCP1595A is a current mode PWM buck converter with integrated power switch and synchronous rectifier. It can provide up to 1.5A output current with high conversion efficiency. High frequency PWM control scheme can provide a low output ripple noise. Thus, it allows the usage of small size passive components to reduce the board space. In a low load condition, the controller will automatically change to PFM mode which provides a higher efficiency at low load. The NCP1595A is pin to pin compatible to the 2A NCP1597A.
Features- High Efficiency
- Synchronous Rectification for Higher Efficiency in PWM Mode
- Integrated MOSFET
- Fully Internal Compensation
- High Switching Frequency, 1.0 MHz
- Low Output Ripple
- Current Mode Control
- Short Circuit Protection
- Built-in Slope Compensation for Current mode PWM converter
- + / - 1.5% Reference Voltage
- Thermal Shutdown with Hysteresis
- Ext. Adjustable Output Voltage
- Fast Transient Response
- Low Profile and Minimum External Components
- Designed for use with ceramic capacitor
- Compact 3x3 DFN Package
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Applications- Hard Disk Drive
- USB Power Devices
- Wireless and DSL Modems
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Data Sheets (1)
Evaluation Board Documents (4)
Package Drawings (1)
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description |
|---|
| NCP1595AGEVB | Active | Pb-free | Current Mode PWM Buck Converter Evaluation Board |
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| NCP1595AMNR2G | Active | Pb-free
Halide free | DFN-6 | 506AH | 1 | Tape and Reel | 3000 | $0.3733 |
| NCP1595AMNTWG | Active | Pb-free
Halide free | DFN-6 | 506AH | 1 | Tape and Reel | 3000 | $0.3733 |
| NCP1595MNR2G | Active | Pb-free
Halide free | DFN-6 | 506AH | 1 | Tape and Reel | 3000 | $0.3733 |
| NCP1595MNT2G | Last Shipments | Pb-free
Halide free | DFN-6 | 506AH | 1 | Tape and Reel | 3000 | |
Specifications
| Product | Topology | Control Mode | VCC Min (V) | VCC Max (V) | VO Typ (V) | IO Typ (A) | Efficiency (%) | fSW Typ (kHz) |
|---|
| NCP1595AMNR2G | Step-Down | Current Mode | 4 | 5.5 | 0.8 to 4.95 | 1.5 | 95 | Up to 1200 |
| NCP1595AMNTWG | Step-Down | Current Mode | 4 | 5.5 | 0.8 to 4.95 | 1.5 | 95 | Up to 1200 |
| NCP1595MNR2G | Step-Down | Current Mode | 4 | 5.5 | 0.8 to 4.95 | 1.5 | 95 | Up to 1200 |
