Overview
Description
The ZL2008 is a digital DC/DC controller with integrated MOSFET drivers. Current sharing allows multiple devices to be connected in parallel to source loads with very high current demands. Adaptive performance optimization algorithms improve power conversion efficiency. Zilker Labs Digital-DC™ technology enables a blend of power conversion performance and power management features. The ZL2008 is designed to be a flexible building block for DC power and can be easily adapted to designs ranging from a single-phase power supply operating from a 3. 3V input to a multi-phase supply operating from a 12V input. The ZL2008 eliminates the need for complicated power supply managers as well as numerous external discrete components. Key operating features can be configured by pin-straps, including compensation, current sharing and output voltage. The ZL2008 uses the I2C/SMBus™ with PMBus™ protocol for communication with a host controller and the Digital-DC bus for communication between Zilker Labs devices.
Features
- Power Conversion
- Efficient synchronous buck controller
- Adaptive light load efficiency optimization
- 3V to 14V input range
- 0.54V to 5.5V output range (with margin)
- POLA and DOSA voltage trim modes
- ±1% output voltage accuracy
- Internal 3A MOSFET drivers
- Fast load transient response
- Current sharing and phase interleaving
- Snapshot™ parameter capture
- RoHS compliant (6mmx6mm) QFN package Power Management
- Digital soft-start/stop
- Precision delay and ramp-up
- Power good/enable
- Voltage tracking, sequencing and margining
- Voltage, current and temperature monitoring
- I2C/SMBus interface, PMBus compatible
- Output voltage and current protection
- Internal non-volatile memory (NVM)
Comparison
Applications
Design & Development
Boards & Kits
Digital DC-DC Controller with Drivers and Pin-Strap Current Sharing Evaluation Board
The ZL2008EVAL1Z evaluation board provides the circuitry required to evaluate the features of the ZL2008 digital power controller. The ZL2008EVAL1Z platform is a 4-layer board used to demonstrate a 15A synchronous buck converter. Sequencing, tracking, margining, plus other features can be...
USB to SMBus Adapter and Cable
The USB to SMBus™ interface board allows communication between a Digital-DC™ evaluation board and a PC. This interface board has been designed to bridge PMBus™ commands from a PC application program to the SMBus. The PMBus command set is used to configure a Digital-DC device as well as monitor...
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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