ZSPM1000
True Digital PWM Controller
(Single-Phase, Single-Rail)
Datasheet
Brief Description
Benefits
The ZSPM1000 is a configurable true-digital single-
phase PWM controller for high-current, non-isolated
DC/DC supplies. It operates as a synchronous step-
down converter in a single-rail and single-phase con-
figuration.
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Fast configurability and design flexibility
Simplified design and integration
Reduced component count through system level
integration
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Simplified monitoring for system power and
thermal management
The ZSPM1000 integrates a digital control loop, opti-
mized for maximum flexibility and stability, as well as
load step and steady-state performance. In addition,
a rich set of protection and monitoring functions is
provided. On-chip, non-volatile memory (NVM) and
an I2C™ * interface facilitate configuration.
Higher energy efficiency across all output loading
conditions
Available Support
The PC-based IDT’s Pink Power Designer™ pro-
vides a user-friendly and easy-to-use interface to the
device for communication and configuration. It can
guide the user through the design of the digital com-
pensator and offers intuitive configuration methods
for additional features, such as protection and
sequencing.
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Evaluation Kit
PC-based Pink Power Designer™
Physical Characteristics
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Operation temperature: -40°C to +125°C**
VOUT max: 5V
Lead free (RoHS compliant) 24-pin QFN package
(4 mm x 4 mm)
Features
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Programmable digital control loop
Advanced digital control techniques
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Tru-sample Technology™
State-Law Control™ (SLC)
Sub-cycle Response™ (SCR)
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ZSPM1000 Typical Application Diagram
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Improved transient response and noise immunity
Protection features
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Over-current protection
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Over-voltage protection (VIN, VOUT)
Under-voltage protection (VIN, VOUT)
Overloaded startup
Restart and delay
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Support for SMOD and ZCD drivers
Fuse-based NVM for improved reliability
Operation from a single 5V or 3.3V supply
Optional PMBus™ address selection without
external resistors
*
I2C™ is a registered trademark of NXP.
** Subject to product type.
© 2016 Integrated Device Technology, Inc.
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January 27, 2016