ZSPM15xx
True-Digital PWM Controller
(Single-Phase, Single-Rail)
Datasheet
Brief Description
Benefits
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.
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Factory pre-configured for industry standard
output voltages and currents enabling fast
time-to-market
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Simplified design and integration
FPGA designer-friendly solution
ZSPM15xx family ICs have a rich set of integrated
fault protection features including over-voltage/
under-voltage, output over-current, and over-temper-
ature 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.
Highest power density with smallest footprint
Higher energy efficiency across all output loading
conditions
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Operation from a single 5V supply
Available Support
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Reference designs
Evaluation kits
ZSPM15xx family ICs have been optimized for max-
imum efficiency when used with IDT’s DrMOS
devices. Reference designs and application instruc-
tions enable a high performance turnkey solution
without extensive engineering development.
Physical Characteristics
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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
Features
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Advanced digital control techniques
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Lead free (RoHS compliant) 24-pin QFN package
(4mm x 4mm)
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Tru-sample Technology™
State-Law Control™ (SLC)
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Preconfigured compensation for selected
inductance values.
ZSPM15xx Typical Application Diagram
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Improved transient response and noise immunity
Protection features
ZSPM15xx
ZSPM90xx
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Configuration for over-current protection
Over-voltage protection (VIN, VOUT)
Under-voltage protection (VIN, VOUT)
Over-temperature protection
Overloaded startup
QFN 4x4 mm
PQFN 6x6 mm
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Current Sensing
Digital Control Loop
Restart and delay
Power Management
Driver
Driver
(Sequencing, Protection,…)
Housekeeping
and
Communication
© 2016 Integrated Device Technology, Inc.
1
January 27, 2016