NCP6343: 3 A Processor - Memory Supply with Dynamic Voltage Scaling, I2C Programming. Transient load helper
The NCP6343 is a synchronous buck converter optimized to supply recent micro processors (ARM core processor, GPU), memories, that demand high power at low voltages of portable applications powered by one cell Li-ion or three cell Alkaline/NiCd/NiMH batteries. The device is able to deliver up to 3.0 A, with programmable output voltage from 0.6 V to 1.4 V. It could share the same output rail with another DCDC/LDO and works as a transient load helper. Operation at a 3 MHz switching frequency allows the use of small components. Synchronous rectification and automatic PWM/PFM transitions improve overall solution efficiency. The NCP6343 is in a space saving, low profile 1.99 x 1.34 mm CSP-15 package.
Features- 2.3 V to 5.5 V Input Voltage Range
- 3 MHz Switching Frequency
- DVS support through I2C
- Enabling with pins or I2C
- IC access in off mode
- Transient Load Helper
| Benefits- Support Latest Battery
- Reduced output inductor and capacitor size
- Optimizes processor power
- Flexible enabling and disabling
- Pre programming at low power
- Share the same output rail with another DCDC/LDO without sinking current on shared rail
|
Applications- Battery powered applications
- Power supply for processor with low core voltage
- LP-DDR Memory
| End Products- Cellular phones, smart phones, tablets
|
Package Drawings (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| NCP6343BFCCT1G | Active | Pb-free
Halide free | WLCSP-15 | 567GB | 1 | Die Surf Tape and Reel | 3000 | $0.27 |
Specifications
| Product | Topology | Control Mode | VCC Min (V) | VCC Max (V) | VO Typ (V) | IO Typ (A) | Efficiency (%) | fSW Typ (kHz) |
|---|
| NCP6343BFCCT1G | Step-Down | Voltage Mode | 2.3 | 5.5 | 1.225 | 3 | 93 | 3000 |
