LTM8025_15 Datasheet, PDF (1/22 Pages) Linear Technology – 36V, 3A Step-Down Module Regulator

LTM8025
36V, 3A Step-Down
µModule Regulator
Features
n _{Complete Step-Down Switch Mode Power Supply}
n _{Wide Input Voltage Range: 3.6V to 36V}
n _{Up to 3A Output Current}
n _{Parallelable for Increased Output Current}
n _{0.8V to 24V Output Voltage}
n _{Selectable Switching Frequency: 200kHz to 2.4MHz}
n _{Current Mode Control}
n _{SnPb or RoHS Compliant Finish}
n _{Programmable Soft-Start}
n _{9mm × 15mm × 4.32mm LGA and 9mm × 15mm ×}
4.92mm BGA Packages
Applications
n _{Automotive Battery Regulation}
n _{Power for Portable Products}
n _{Distributed Supply Regulation}
n _{Industrial Supplies}
n _{Wall Transformer Regulation}
Description
The LTM^®8025 is a 36V_IN, 3A step down µModule^® (mi-
cromodule) converter. Included in the package are the
switching controller, power switches, inductor and all
support components. Operating over an input voltage
range of 3.6V to 36V, the LTM8025 supports an output
voltage range of 0.8V to 24V and a switching frequency
range of 200kHz to 2.4MHz, each set by a single resistor.
Only the bulk input and output filter capacitors are needed
to finish the design.
The LTM8025 is packaged in a thermally enhanced, com-
pact (9mm × 15mm) and low profile over-molded land
grid array (LGA) and ball grid array (BGA) packages suit-
able for automated assembly by standard surface mount
equipment. The LTM8025 is available with SnPb (BGA) or
RoHS compliant terminal finish.
L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule and Burst Mode are registered
trademarks of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
Typical Application
V_IN*
22V TO 36V
4.7µF
47.5k
V_IN
RUN/SS
V_OUT
AUX
LTM8025 BIAS
SHARE
PGOOD
RT
ADJ
SYNC GND
V_OUT
12V AT 3A
22µF
34.8k
*RUNNING VOLTAGE RANGE. PLEASE REFER TO
APPLICATIONS INFORMATION SECTION FOR START-UP DETAILS 8025 TA01a
100
V_IN = 24V
90
Efficiency
80
70
60
50
40
0 500 1000 1500 2000 2500 3000
OUTPUT CURRENT (mA)
8025 TA01b
For more information www.linear.com/LTM8025
8025fc
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