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MAX15020ATP+ Datasheet(PDF) 1 Page - Maxim Integrated Products

Part # MAX15020ATP+
Description  2A, 40V Step-Down DC-DC Converter with Dynamic Output-Voltage Programming
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX15020ATP+ Datasheet(HTML) 1 Page - Maxim Integrated Products

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General Description
The MAX15020 high-voltage step-down DC-DC con-
verter operates over an input voltage range of 7.5V to
40V. The device integrates a 0.2Ω high-side switch and
is capable of delivering 2A load current with excellent
load and line regulation. The output is dynamically
adjustable from 0.5V to 36V through the use of an exter-
nal reference input (REFIN). The MAX15020 consumes
only 6µA in shutdown mode.
The device utilizes feed-forward voltage-mode architec-
ture for good noise immunity in the high-voltage switch-
ing environment and offers external compensation for
maximum flexibility. The switching frequency is selec-
table to 300kHz or 500kHz and can be synchronized to
an external clock signal of 100kHz to 500kHz by using
the SYNC input. The IC features a maximum duty cycle
of 95% (typ) at 300kHz.
The device includes configurable undervoltage lockout
(UVLO) and soft-start. Protection features include
cycle-by-cycle current limit, hiccup-mode for output
short-circuit protection, and thermal shutdown. The
MAX15020 is available in a 20-pin TQFN 5mm x 5mm
package and is rated for operation over the
-40°C to +125°C temperature range.
Applications
Printer Head Driver Power Supply
Automotive Power Supply
Industrial Power Supply
Step-Down Power Supply
Features
o Wide 7.5V to 40V Input Voltage Range
o 2A Output Current, Up to 96% Efficiency
o Dynamic Programmable Output Voltage (0.5V to
36V)
o Maximum Duty Cycle of 95% (typ) at 300kHz
o 100kHz to 500kHz Synchronizable SYNC
Frequency Range
o Configurable UVLO and Soft-Start
o Low-Noise, Voltage-Mode Step-Down Converter
o Programmable Output-Voltage Slew Rate
o Lossless Constant Current Limit with Fixed
Timeout to Hiccup Mode
o Extremely Low-Power Consumption (< 6µA typ) in
Shutdown Mode
o 20-Pin (5mm x 5mm) Thin QFN Package
2A, 40V Step-Down DC-DC Converter with
Dynamic Output-Voltage Programming
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
MAX15020
ON/OFF
IN
DVREG
VOUT
(0.5V TO 36V)
LX
REFOUT
REFIN
EP
SS
PWM
INPUT
VIN
(7.5V TO 40V)
BST
FB
COMP
SYNC GND FSEL PGND
REG
Typical Operating Circuit
19-0811; Rev 0; 4/07
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
+
Denotes a lead-free package.
*
EP = Exposed pad.
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX15020ATP+
-40°C to +125°C
20 TQFN-EP*
(5mm x 5mm)
T2055-5
Pin Configuration appears at end of data sheet.
EVALUATION
KIT
AVAILABLE


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