LV5068V: Non-Synchronous Buck Controller, Switching, 1-Channel
The LV5068V is a Non-Synchronous Buck Controller, designed to operate from a wide range of input voltages (4.5 V to 40 V) and to exhibit very low current consumption under light load (55 uA typ). The LV5068 is extremely flexible and allows the designer to set the switching frequency (300 kHz to 2.2 MHz), the current limit and a soft-start through an external capacitor. In addition, the device may be synchronised with an external signal. The LV5068V incorporates output voltage monitoring with a PowerGood pin, and rotection features include built-in overcurrent protection, input undervoltage lockout as well as thermal shutdown capability. The LV5068V is available in a 16-pin SSOP package.
Features- Maximum value of light load mode current is 80uA.
- Built-in OCP circuit with P-by-P method
- When P-by-P is generated continuously, it shifts to the HICCUP operation. If connect C-HICCUP to GND pin, then latch-off when over current.
- The oscillatory frequency can be set by the external pin. The oscillatory frequency is 300 kHz to 2.2MHz
- Built-in UVLO, TSD
- The device is capable of Synchronous operation with an external signal
| Benefits- Enhanced efficiency at lower output current
- Protects against over current conditions
- Allows for selectable protection
- Allows for design flexibility
- Protection feature
- Allows for frequency synchronization
|
Applications- Power Supply for standby uControllers
| End Products- Set-Top box, DVD players, HDD
- Printers
- LCD monitors and TV
|
Application Notes (1)
Package Drawings (1)
Data Sheets (1)
Evaluation Board Documents (4)
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description |
|---|
| LV5068VGEVB | Active | Pb-free | 1-Channel Step-Down Switching Regulator Evaluation Board |
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| LV5068V-MPB-H | Last Shipments | Pb-free
Halide free | SSOP-16 | 565AM | 3 | Fan-Fold | 90 | |
| LV5068V-TLM-H | Active | Pb-free
Halide free | SSOP-16 | 565AM | 3 | Tape and Reel | 2000 | $1.2396 |
Specifications
| Product | Topology | Phases | Control Mode | VCC Min (V) | VCC Max (V) | fSW Typ (kHz) | tres Typ (ns) |
|---|
| LV5068V-TLM-H | Step-Down | 1 | Current Mode | 4.5 | 40 | 330
300-2200 | |
