ZL2101

6A Digital Synchronous Step-Down DC/DC Converter with Auto Compensation

OVERVIEW

The ZL2101 is a 6A digital converter with auto compensation and integrated power management that combines an integrated synchronous step-down DC/DC converter with key power management functions in a small package, resulting in a flexible and integrated solution.

The ZL2101 can provide an output voltage from 0.54V to 5.5V (with margin) from an input voltage between 4.5V and 14V. Internal low rDS(ON) synchronous power MOSFETs enable the ZL2101 to deliver continuous loads up to 6A with high efficiency. An internal Schottky bootstrap diode reduces discrete component count. The ZL2101 also supports phase spreading to reduce system input capacitance.

Power management features such as digital soft-start delay and ramp, sequencing, tracking, and margining can be configured by simple pin-strapping or through an on-chip serial port. The ZL2101 uses the PMBus™ protocol for communication with a host controller and the Digital-DC bus for interoperability between other Zilker Labs devices.

KEY FEATURES

  • Integrated MOSFET Switches
  • 6A Continuous Output Current
  • ±1% Output Voltage Accuracy
  • Auto Compensation
  • Snapshot™ Parametric Capture
  • I2C/SMBus Interface, PMBus Compatible
  • Internal Non-Volatile Memory (NVM)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ZL2101
Basic Information
Production Status
Mass Production
Topology
Buck
# of Outputs
1
Input Voltage Min (V)
4.5
Input Voltage Max (V)
14
Output Voltage Min (V)
0.54
Output Voltage Max (V)
5.5
Output Current Max (A)
6
IQ
11 mA
Switching Freq. (max) (MHz)
1
Switching Freq. (min) (MHz)
0.2
Peak Efficiency (%)
91
POR
Yes
SYNCH Capability
Yes
Control Type
Digital
Qualification Level
Standard
Switching Frequency Range (MHz)
0.2 to 1.0
Temperature Range
-40 to +85

Confirm below disclaimers

Input Renesas account name and password