DC1980A datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Development board/suite/development tools> DC1980A

DC1980A: Descriptioneval board buck reg lt3514; CategoryDevelopment board/suite/development tools; File Size308KB，6 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

Download Datasheet Compare View All

DC1980A Online Shopping

Suppliers	Part Number	Price	MOQ	In stock
	DC1980A	-	-	View	Buy Now

DC1980A Overview

eval board buck reg lt3514

Preview

Download Datasheet

View All

DEMO MANUAL DC1980A

LT3514

Triple Step-Down Switching Regulator

with 100% Duty Cycle Operation

Description

Demonstration circuit 1980A is a triple current mode PWM

step-down DC/DC converter featuring the

3514.

The

demo circuit is designed for 5V, 3.3V and 1.8V outputs

from a 5.4V to 36V input. The current capability of 5V

and 1.8V outputs is 1A and the 3.3V output is capable of

2A output. Individual soft-start and current limit for each

output as well as frequency synchronous function simplify

the complex design of triple-output power converters.

Each converter is synchronized to either a common ex-

ternal clock input or a resistor programmable 250kHz to

2.2MHz internal oscillator. Programmable frequency allows

optimization between efficiency and external component

size. Each output can be independently disabled using its

own RUN/SS pin.

The LT3514 data sheet gives complete description of the

device, operation and application information. The data

sheet must be read in conjunction with this quick start

guide for the demo circuit 1980A.

Design files for this circuit board are available at

http://www.linear.com/demo

LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

EFFICIENCY (%)

100

(V)

DC1980a F01

Figure 1. System Efficiency at f = 1MHz with I

OUT1

= I

OUT4

= 1A

and I

OUT3

= 2A

DC1980a F02

Figure 2. Thermal Image at V

= 12V, f = 1MHz with

OUT1

= I

OUT4

= 1A and I

OUT3

= 2A

performance summary

SYMBOL

OUT1

OUT3

OUT4

Frequency

OUT1

PARAMETER

Input Supply Range

Output Voltage 1

Output Voltage 3

Output Voltage 4

Switching Frequency

OUT1

Maximum Output Current

Specifications are at T

= 25°C

CONDITIONS

MIN

5.4

4.85

3.2

1.746

= 12V

= 5.4V ~ 36V

0.9

3.3

1.8

TYP

MAX

5.15

3.4

1.854

1.1

UNITS

MHz

dc1980af

DC1980A Related Products

	DC1980A	LT3514IFE#TRPBF	LT3514EUFD#TRPBF	LT3514IUFD#PBF	LT3514EUFD#PBF	LT3514EFE#PBF	LT3514IFE#PBF	LT3514IUFD#TRPBF	LT3514EFE#TRPBF
Description	eval board buck reg lt3514	IC REG BUCK ADJ 2A/1A 24TSSOP	IC REG BUCK ADJ 2A/1A TRPL 28QFN	IC REG BUCK ADJ 2A/1A TRPL 28QFN	IC REG BUCK ADJ 2A/1A TRPL 28QFN	IC REG BUCK ADJ 2A/1A 24TSSOP	IC REG BUCK ADJ 2A/1A 24TSSOP	IC REG BUCK ADJ 2A/1A TRPL 24QFN	IC REG BUCK ADJ 2A/1A 24TSSOP
Brand Name	-	-	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	-
Is it Rohs certified?	-	-	conform to	conform to	conform to	conform to	conform to	conform to	-
Maker	-	-	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	-
Parts packaging code	-	-	QFN	QFN	QFN	TSSOP	TSSOP	QFN	-
package instruction	-	-	HVQCCN,	HVQCCN,	HVQCCN,	HTSSOP,	HTSSOP,	HVQCCN,	-
Contacts	-	-	28	28	28	24	24	28	-
Manufacturer packaging code	-	-	UFD	UFD	UFD	FE	FE	UFD	-
Reach Compliance Code	-	-	compliant	compliant	compliant	compliant	compliant	compliant	-
ECCN code	-	-	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	-
Analog Integrated Circuits - Other Types	-	-	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	-
Maximum input voltage	-	-	36 V	36 V	36 V	36 V	36 V	36 V	-
Minimum input voltage	-	-	3.2 V	3.2 V	3.2 V	3.2 V	3.2 V	3.2 V	-
Nominal input voltage	-	-	12 V	12 V	12 V	12 V	12 V	12 V	-
JESD-30 code	-	-	R-PQCC-N28	R-PQCC-N28	R-PQCC-N28	R-PDSO-G24	R-PDSO-G24	R-PQCC-N28	-
JESD-609 code	-	-	e3	e3	e3	e3	e3	e3	-
length	-	-	5 mm	5 mm	5 mm	7.8 mm	7.8 mm	5 mm	-
Humidity sensitivity level	-	-	1	1	1	1	1	1	-
Number of functions	-	-	1	1	1	1	1	1	-
Number of terminals	-	-	28	28	28	24	24	28	-
Maximum operating temperature	-	-	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	-
Minimum operating temperature	-	-	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-
Maximum output current	-	-	4.2 A	4.2 A	4.2 A	4.2 A	4.2 A	4.2 A	-
Package body material	-	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-
encapsulated code	-	-	HVQCCN	HVQCCN	HVQCCN	HTSSOP	HTSSOP	HVQCCN	-
Package shape	-	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	-
Package form	-	-	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	-
Peak Reflow Temperature (Celsius)	-	-	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	-
Maximum seat height	-	-	0.8 mm	0.8 mm	0.8 mm	1.2 mm	1.2 mm	0.8 mm	-
surface mount	-	-	YES	YES	YES	YES	YES	YES	-
Switch configuration	-	-	BUCK	BUCK	BUCK	BUCK	BUCK	BUCK	-
Maximum switching frequency	-	-	2400 kHz	2400 kHz	2400 kHz	2400 kHz	2400 kHz	2400 kHz	-
Temperature level	-	-	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	-
Terminal surface	-	-	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	-
Terminal form	-	-	NO LEAD	NO LEAD	NO LEAD	GULL WING	GULL WING	NO LEAD	-
Terminal pitch	-	-	0.5 mm	0.5 mm	0.5 mm	0.65 mm	0.65 mm	0.5 mm	-
Terminal location	-	-	QUAD	QUAD	QUAD	DUAL	DUAL	QUAD	-
Maximum time at peak reflow temperature	-	-	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	-
width	-	-	4 mm	4 mm	4 mm	4.4 mm	4.4 mm	4 mm	-

Recommended Resources

LED voltage measurement circuit diagram

Switching circuit TDA4919 and its application circuit

Duplex Power Line Carrier Intercom

LB1403-13-23-33-43N power amplifier circuit

810 computer motherboard circuit diagram_31

5.1c amplifier system

Differential Probes: What is the principle of a differential probe? Can I DIY one?...; only5784 Test/Measurement

[Play with LaunchPad] Basic Input and Output - IO Operations: This series of documents would like to thank forum members wstt, david_lee, cat3902982, sugerlatu, zhangdaoyu and other friends for their strong support. They spent a lot of time and energy to organiz...; EEWORLD社区 Microcontroller MCU

Global semiconductor industry sales began to recover with a monthly growth rate of nearly 3%: The latest statistics released by the World Semiconductor Trade Statistics Organization (WSTS) show that global semiconductor sales in July 2008 reached 22.18 billion US dollars, up 2.8% from the prev...; 咖啡不加糖 Analog electronics

SM100-B and temperature transmitter connection test diagram: [b][color=#5E7384]This content is originally created by EEWORLD forum user [size=3]18757399889[/size]. If you want to reprint or use it for commercial purposes, you must obtain the author's consent an...; 18757399889 Industrial Control Electronics

ARM has two serial ports, one of which is used as a control serial port. Can it be used as a programming serial port?: From EEWORLD cooperation group: arm linux fpga embedded 0 (49900581) Group owner: wangkj...; 梦之路 MCU

Pull-up resistor application principles: [size=4]1. Considering power consumption and the current sinking capability of the chip, it should be large enough; the larger the resistance, the smaller the current. [/size] [size=4] [/size] [size=4...; Jacktang Analogue and Mixed Signal

Shortcut: 00 01 02 03 04 05 06 07 08 09 0A 0C 0F 0J 0L 0M 0R 0S 0T 0Z 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 1H 1K 1M 1N 1P 1S 1T 1V 1X 1Z 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 2G 2K 2M 2N 2P 2Q 2R 2S 2T 2W 2Z 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 3G 3H 3J 3K 3L 3M 3N 3P 3R 3S 3T 3V 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4M 4N 4P 4S 4T 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5E 5G 5H 5K 5M 5N 5P 5S 5T 5V 60 61 62 63 64 65 66 67 68 69 6A 6C 6E 6F 6M 6N 6P 6R 6S 6T 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7M 7N 7P 7Q 7V 7W 7X 80 81 82 83 84 85 86 87 88 89 8A 8D 8E 8L 8N 8P 8S 8T 8W 8Y 8Z 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9F 9G 9H 9L 9S 9T 9W

Popular Components