LTM8023 Datasheet, PDF (1/20 Pages) Linear Technology – 2A, 36V DC/DC μModule

FEATURES
n _{Complete Step-Down Switch Mode Power Supply}
n _{Wide Input Voltage Range: 3.6V to 36V}
n _{2A Output Current}
n _{0.8V to 10V Output Voltage}
n _{Selectable Switching Frequency: 200kHz to 2.4MHz}
n _{Current Mode Control}
n _{(e4) RoHS Compliant Package with Gold}
Pad Finish
n _{Programmable Soft-Start}
n _{Tiny, Low Profile (11.25mm × 9mm × 2.82mm)}
Surface Mount LGA Package
APPLICATIONS
n _{Automotive Battery Regulation}
n _{Power for Portable Products}
n _{Distributed Supply Regulation}
n _{Industrial Supplies}
n _{Wall Transformer Regulation}
LTM8023
2A, 36V DC/DC
µModule
DESCRIPTION
The LTM^®8023 is a complete 2A, DC/DC step-down power
supply. Included in the package are the switching control-
ler, power switches, inductor, and all support components.
Operating over an input voltage range of 3.6V to 36V, the
LTM8023 supports an output voltage range of 0.8V to 10V,
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 low profile package (2.82mm) enables utilization of
unused space on the bottom of PC boards for high density
point of load regulation.
The LTM8023 is packaged in a thermally enhanced, compact
(11.25mm × 9mm) and low profile (2.82mm) over-molded
Land Grid Array (LGA) package suitable for automated
assembly by standard surface mount equipment. The
LTM8023 is RoHS compliant.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
μModule is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
5.5V_IN to 36V_IN, 3.3V/2A DC/DC μModule™ Converter
V_IN*
5.5V TO 36V
2.2μF
V_IN
RUN/SS
V_OUT
AUX
BIAS
2.2μF
V_OUT
3.3V
2A
LTM8023
PGOOD
SELECTABLE
OPERATING R_T
FREQUENCY
49.9k
ADJ
GND SYNC
8023 TA01
154k
*RUNNING VOLTAGE RANGE. PLEASE
REFER TO APPLICATIONS INFORMATION
FOR START-UP DETAILS
Efficiency and Power Loss
90
1.8
85
1.6
80
1.4
1.2
75
1.0
70
0.8
65
0.6
60
0.4
55
V_IN = 12V
V_OUT = 3.3V
0.2
50
f = 650 kHz ₀
0.01 0.1
1
LOAD CURRENT (A)
10
8023 TA01b
8023fb
1