The MAX17024 pulse-width modulation (PWM) controller
provides high efficiency, excellent transient
response, and high DC-output accuracy needed for
stepping down high-voltage batteries to generate low-voltage
core or chipset/RAM bias supplies in notebook
computers. The output voltage can be controlled using
the dynamic REFIN, which supports input voltages
between 0 to 2V. The REFIN adjustability combined
with a resistive voltage-divider on the feedback input
allows the MAX17024 to be configured for any output
voltage between 0 to 0.9 x VIN.
Maxim's proprietary Quick-PWM™ quick-response, constant-on-time PWM control scheme handles wide input/output voltage ratios (low-duty-cycle applications) with ease and provides 100ns "instant-on" response to
load transients while maintaining a relatively constant
switching frequency. Strong drivers allow the MAX17024
to efficiently drive large synchronous-rectifier MOSFETs.
The controller senses the current across the sense
resistor series with the synchronous rectifier to achieve
highly accurate valley current-limit protection.
The MAX17024 includes a voltage-controlled soft-start
and soft-shutdown to limit the input surge current, provide
a monotonic power-up (even into a precharged
output), and provide a predictable power-up time. The
controller also includes output undervoltage and thermal-fault protection.
The MAX17024 is available in a tiny 14-pin, 3mm x
3mm TDFN package. For space-constrained applications,
refer to the MAX17016 single step-down with 26V
internal MOSFETs capable of supporting 10A continuous
load. The MAX17016 is available in a small 40-pin,
6mm x 6mm TQFN package.
Key Features
Applications/Uses
Quick-PWM with Fast Transient Response
Supports Any Output Capacitor
No Compensation Required with Polymers/Tantalum
Stable with Ceramic Output Capacitors Using External Compensation
Precision 2V ±10mV Reference
Dynamically Adjustable Output Voltage (0 to 0.9 x VIN Range)
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices:
1-2
of
2
MAX17024
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free? Materials Analysis
MAX17024ETD+T
TDFN-EP;14 pin;10 mm²
Outline Drawing: 21-0137 (PDF)
Land Pattern: 90-0062 (PDF)
Use pkgcode/variation: T1433+1*
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