LTM8023IV#PBF Linear Technology, LTM8023IV#PBF Datasheet

IC BUCK SYNC ADJ 2A 50LGA

LTM8023IV#PBF

Manufacturer Part Number
LTM8023IV#PBF
Description
IC BUCK SYNC ADJ 2A 50LGA
Manufacturer
Linear Technology
Series
µModuler
Type
Point of Load (POL) Non-Isolatedr
Datasheet

Specifications of LTM8023IV#PBF

Design Resources
LTM8023 Spice Model
Output
0.8 ~ 10 V
Number Of Outputs
1
Power (watts)
20W
Mounting Type
Surface Mount
Voltage - Input
3.6 ~ 36 V
Package / Case
50-LGA
1st Output
0.8 ~ 10 VDC @ 2A
Size / Dimension
0.44" L x 0.35" W x 0.11" H (11.25mm x 9mm x 2.82mm)
Power (watts) - Rated
20W
Operating Temperature
-40°C ~ 85°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3rd Output
-
2nd Output
-

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Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTM8023IV#PBFLTM8023IV
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LTM8023IV#PBF
Manufacturer:
ADI/亚德诺
Quantity:
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Company:
Part Number:
LTM8023IV#PBF
0
Company:
Part Number:
LTM8023IV#PBFLTM8023IVDC#PBF
Manufacturer:
LT
Quantity:
218
FEATURES
APPLICATIONS
n
n
n
n
n
n
n
n
n
n
n
n
n
n
TYPICAL APPLICATION
5.5V TO 36V
Complete Step-Down Switch Mode Power Supply
Wide Input Voltage Range: 3.6V to 36V
2A Output Current
0.8V to 10V Output Voltage
Selectable Switching Frequency: 200kHz to 2.4MHz
Current Mode Control
(e4) RoHS Compliant Package With Gold Pad Finish
Programmable Soft-Start
Tiny, Low Profi le (11.25mm × 9mm × 2.82mm)
Surface Mount LGA Package
Automotive Battery Regulation
Power for Portable Products
Distributed Supply Regulation
Industrial Supplies
Wall Transformer Regulation
5.5V
V
IN
*
IN
to 36V
*RUNNING VOLTAGE RANGE. PLEASE
REFER TO APPLICATIONS INFORMATION
FOR START-UP DETAILS
SELECTABLE
FREQUENCY
2.2μF
OPERATING
IN
, 3.3V/2A DC/DC μModule
49.9k
R
V
RUN/SS
T
IN
GND
LTM8023
SYNC
PGOOD
V
BIAS
8023 TA01
AUX
ADJ
OUT
®
Converter
154k
2.2μF
V
3.3V
2A
OUT
DESCRIPTION
The LTM
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
fi lter capacitors are needed to fi nish the design.
The low profi le 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 profi le (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, 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.
®
8023 is a complete 2A, DC/DC step-down power
90
85
80
75
70
65
60
55
50
0.01
Effi ciency and Power Loss
LOAD CURRENT (A)
0.1
2A, 36V DC/DC
1
V
V
f = 650 kHz
IN
OUT
µModule
= 12V
= 3.3V
LTM8023
8023 TA01b
10
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
8023ff
1

Related parts for LTM8023IV#PBF

LTM8023IV#PBF Summary of contents

Page 1

... The LTM8023 is RoHS compliant. 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. ...

Page 2

... ORDER INFORMATION LEAD FREE FINISH PART MARKING* LTM8023EV#PBF LTM8023V LTM8023IV#PBF LTM8023V LTM8023MPV#PBF LTM8023MPV Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. For more information on lead free part marking, go to: This product is only offered in trays ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T otherwise specifi ed. SYMBOL PARAMETER V Input DC Voltage IN V Output DC Voltage OUT R Minimum Allowable R ADJ(MIN) ADJ I Continuous Output DC Current OUT IQ V Quiescent ...

Page 4

LTM8023 TYPICAL PERFORMANCE CHARACTERISTICS Effi ciency (8V ) OUT 100 OUT 12V IN 30 24V IN 36V IN 20 0.01 0.1 1 OUTPUT CURRENT (A) 8023 G01 Minimum Required Input Voltage ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Output Short-Circuit Current vs Input Voltage 3200 3000 2800 2600 2400 2200 2000 1800 1600 INPUT VOLTAGE (V) 8023 G10 Load Current vs Input Voltage (5V 2500 2000 1500 1000 500 0 0 ...

Page 6

LTM8023 PIN FUNCTIONS V (Bank 1): The V pin supplies current to the LTM8023’ internal regulator and to the internal power switch. This pin must be locally bypassed with an external, low ESR capacitor of at least 2.2μF. ...

Page 7

BLOCK DIAGRAM V IN 0.1μF SHARE CURRENT MODE CONTROLLER RUN/SS SYNC 4.7μH GND R T LTM8023 V OUT 4.7pF 499k 10μF AUX BIAS PGOOD ADJ 8023 BD 8023ff 7 ...

Page 8

LTM8023 OPERATION The LTM8023 is a standalone nonisolated step-down switching DC/DC power supply. It can deliver output current with only bulk external input and output capacitors. This module provides a precisely regulated output voltage programmable ...

Page 9

APPLICATIONS INFORMATION Table 1. Recommended Compoment Values and Confi guration ( OUT IN 3.6V to 36V 0.82V 10μF 3.6V to 36V 1.00V 10μF 3.6V to 36V 1.20V 10μF 3.6V to 36V 1.50V 10μF 3.6V to 36V ...

Page 10

LTM8023 APPLICATIONS INFORMATION Ceramic capacitors are also piezoelectric. In Burst Mode operation, the LTM8023’s switching frequency depends on the load current, and can excite a ceramic capacitor at audio frequencies, generating audible noise. Since the LTM8023 operates at a lower ...

Page 11

APPLICATIONS INFORMATION that paralleled modules start up together, the RUN/SS pins may be tied together, as well. If the RUN/SS pins are not tied together, make sure that the same valued soft-start capacitors are used for each module. An example ...

Page 12

LTM8023 APPLICATIONS INFORMATION the peak start-up current can be reduced to the current that is required to regulate the output, with no overshoot. Choose the value of the resistor so that it can supply at least 20μA when the RUN/SS ...

Page 13

... LTM8023. However, these capacitors can cause problems if the LTM8023 is plugged into a live supply (see Linear Technology Application Note 88 for a complete discussion). The low loss ceramic capacitor combined with stray inductance in series with the power ...

Page 14

LTM8023 APPLICATIONS INFORMATION CLOSING SWITCH SIMULATES HOT PLUG + LOW STRAY IMPEDANCE INDUCTANCE ENERGIZED DUE TO 6 FEET 24V SUPPLY (2 METERS) OF TWISTED PAIR + 0.1μF + 22μF 35V AI.EI. Figure 6. A Well Chosen Input Network Prevents Input ...

Page 15

TYPICAL APPLICATIONS 0.82V Step-Down Converter 3.6V TO 15V BIAS 10μF RUN/SS LTM8023 SHARE PGOOD R GND SYNC T 105k *RUNNING VOLTAGE RANGE. PLEASE REFER TO APPLICATIONS INFORMATION FOR START-UP DETAILS 2.5V Step-Down Converter V * ...

Page 16

LTM8023 TYPICAL APPLICATIONS –5V Positive to Negative Converter 31V RUN/SS LTM8023 SHARE PGOOD 2.2μF R GND SYNC T 39.2k *RUNNING VOLTAGE RANGE. PLEASE REFER TO APPLICATIONS INFORMATION FOR START-UP DETAILS 6.5V TO 36V ...

Page 17

PACKAGE DESCRIPTION Z aaa Z Z bbb 4.445 3.175 1.905 0.635 0.000 0.635 1.905 3.175 4.445 LTM8023 0.3175 0.635 0.9525 8023ff 17 ...

Page 18

LTM8023 PACKAGE DESCRIPTION Table 3. Pin Assignment (Sorted by Pin Number) PIN SIGNAL DESCRIPTION ...

Page 19

... Added Note 5 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTM8023 PAGE NUMBER ...

Page 20

... LGA Package IN OUT 3.6V ≤ V ≤ 36V, 0.8V ≤ V ≤ 10V, 11.25mm × 9mm × 2.82mm LGA Package IN OUT www.linear.com ● V OUT 3.3V 2A 22μF ≤ 28V IN LT 0810 REV F • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2007 8023ff ...

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