ZL2004-01

Adaptive Digital DC-DC Controller with Current Sharing

OVERVIEW

The ZL2004-01 is specialized version of the ZL2004 DC/DC controller that has been optimized for high output accuracy within a given set of operating conditions. The
ZL2004-01 is otherwise identical to the ZL2004 in features and functionality. The
ZL2004-01 has been optimized for use with the ZL1505 MOSFET driver and discrete MOSFETs.

The ZL2004-01 integrates a proprietary Digital-DC communication bus for current sharing and inter device communication. Adaptive algorithms improve light load efficiency. All operating features can be configured by simple pinstrap selection, resistor selection or through the on-board serial port. The PMBus™-compliant ZL2004-01 uses the SMBus™ serial interface for communication with other Digital-DC products or a host controller.

KEY FEATURES

  • Power Conversion
  • Efficient synchronous buck controller
  • ± 0.2% VOUT set-point accuracy
  • 8.0V to 10.0V input range
  • 0.9V to 1.1V output range
  • Adaptive performance optimization algorithms
  • Fast load transient response
  • Active current sharing
  • DCR current sensing with digitally adjustable current sense range
  • RoHS compliant (5mmx5mm) QFN package
  • Power Management
  • Digital soft-start/stop
  • Precision delay and ramp-up
  • Power-good/enable
  • Voltage tracking, sequencing and margining
  • Voltage/current/temperature monitoring
  • SMBus communication (PMBus compliant)
  • Output voltage and current protection
  • Internal non-volatile memory (NVM)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ZL2004-01
Basic Information
Production Status
Mass Production
Input Voltage Min (V)
4.5
Input Voltage Max (V)
14
Output Voltage Min (V)
0.54
Output Voltage Max (V)
4
Output Current Max (A)
40
IQ
16 mA
Switching Freq. (min) (MHz)
0.2
Switching Freq. (max) (MHz)
1.4
Peak Efficiency (%)
94
Integrated MOSFET Driver (s)
No
Integrated Power Mgmt
Yes
Qualification Level
Standard
Switching Frequency Range (MHz)
0.2 to 1.4
Temperature Range
-40 to +85

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