LTM8023_15 Datasheet, PDF (1/24 Pages) Linear Technology – 2A, 36V DC/DC Step-Down Module Regulator

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 _{Programmable Soft-Start}
n _{SnPb (BGA) or RoHS Compliant (LGA and BGA)}
Finish
n _{Tiny, Low Profile, Surface Mount LGA (9mm ×}
11.25mm × 2.82mm) and BGA (9mm × 11.25mm ×
3.42mm) Packages
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
Step-Down µModule
Regulator
Description
The LTM^®8023 is a complete 2A, DC/DC step-down power
supply. 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
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 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, com-
pact and low profile over-molded land grid array (LGA)
and ball grid array (BGA) packages suitable for automated
assembly by standard surface mount equipment. The
LTM8023 is available with SnPb (BGA) or RoHS compli-
ant terminal finish.
L, LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode and µModule are registered
trademarks 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
SHARE
LTM8023
PGOOD
22µF
V_OUT
3.3V
2A
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
50
0.01 0.1
V_IN = 12V
V_OUT = 3.3V
0.2
f = 650 kHz ₀
1
10
LOAD CURRENT (A)
8023 TA01b
8023fi
For more information www.linear.com/LTM8023
1