Data Sheet
Rev. 2.10 / March 2015 ZSPM15xx
True-Digital PWM Controller (Single-Phase, Single-Rail) Power Management ICs Power and Precision ZSPM15xx
True-Digital PWM Controller (Single-Phase, Single-Rail) Brief Description
ZSPM15xx family ICs are controllers designed for high-current, non-isolated DC/DC step-down point of load (POL) converters. The ZSPM15xx has a digital control loop that is optimized for maximum stability as well as load step and steady-state performance. ZSPM15xx family ICs have a rich set of integrated fault protection features including over-voltage/ under-voltage, output over-current, and over-temperature protections. To facilitate ease of use, the ZSPM15xx is pre-programmed and available for common output voltages. To provide flexibility for the end-customer, the over-current protection threshold and the control loop compensation are selectable by the end-customer to match a number of selected power stages. ZSPM15xx family ICs have been optimized for maximum efficiency when used with ZMDI's DrMOS devices. Reference designs and application instructions enable a high performance turnkey solution without extensive engineering development. Benefits Factory pre-configured for industry standard output voltages and currents enabling fast time-to-market Simplified design and integration FPGA designer-friendly solution Highest power density with smallest footprint Higher energy efficiency across all output loading conditions Operation from a single 5V supply Available Support Reference designs Evaluation kits Physical Characteristics Features Advanced digital control techniques Tru-sample TechnologyTM State-Law ControlTM (SLC) Sub-cycle ResponseTM (SCR) Preconfigured compensation for selected inductance values. Improved transient response and noise immunity Protection features Configuration for over-current protection Over-voltage protection (VIN, VOUT) Under-voltage protection (VIN, VOUT) Over-temperature protection Overloaded startup Restart and delay Operation temperature: -40°C to +125°C VIN for POL application:10.8V to 13.2V VDD50 voltage supply: 4.75 to 5.25V Available Output Voltages: 0.85V, 1.0V, 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V, and 5.0V Lead free (RoHS compliant) 24-pin QFN package (4mm x 4mm) ZSPM15xx Typical Application Diagram
ZSPM15xx QFN 4x4 mm Current Sensing Digital Control Loop ZSPM90xx PQFN 6x6 mm Power Management
(Sequencing, Protection,.) Driver Driver Housekeeping and Communication For more information, contact ZMDI via PRODUCT@ZMDI.COM.
© 2015 Zentrum Mikroelektronik Dresden AG -Rev. 2.10 -March 9, 2015. All rights …
