DC1323A datasheet, PDF - EEWORLD Datasheet

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DC1323A: Descriptionboard eval for lt3686edd; CategoryDevelopment board/suite/development tools; File Size551KB，3 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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board eval for lt3686edd

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DEMO CIRCUIT 1323

LT3686

QUICK START GUIDE

LT3686EDD

37V, 1.2A, Buck Regulator

DESCRIPTION

Demo circuit 1323 is a current-mode PWM step-down

DC/DC regulator with an internal 1.2A power switch fea-

turing the LT3686. The demo circuit is designed for 3.3V

output from a 5V to 37V input. The wide input range of

the LT3686 allows a variety of input sources. The typical

sources are automotive batteries and industrial supplies.

Its high maximum frequency allows the use of tiny in-

ductors and capacitors. Operating frequency above the

AM band avoids interfering with radio reception, making

the LT3686 particularly suitable for automotive applica-

tions.

Cycle by cycle current limit and DA current sense provide

the protection against shorted outputs. Soft-start and

frequency foldback eliminate input current surge during

startup. An optional internal regulated active load at the

output via the BD pin keeps the LT3686 at full switching

frequency at light loads, resulting in low, predictable out-

put ripple above the audio and AM bands. Internal com-

pensation and an internal boost diode reduce external

component count.

The LT3686 datasheet gives a complete description of

the part, operation and application information. The data-

sheet must be read in conjunction with this quick start

guide for Demo Circuit 1323.

LT3686 is available in 3mmx3mm DFN package.

Design files for this circuit board are available. Call

the LTC factory.

, LTC, LTM, LT and uModule are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

Performance Summary ( TA = 25oC )

PARAMETER

Minimum Input Voltage

Maximum Input Voltage

Output Voltage V

OUT

Switching Frequency

Maximum Output Current

Efficiency

Voltage Ripple

CONDITION

VALUE

37V

3.3V ±3%

1MHz

1.2A

80.7%

20mV

=5~37V

=12V, I

OUT

=1.0A

=12V, I

OUT

=1.0A

DC1323A Related Products

	DC1323A	LT3686EDD#PBF	LT3686HDD#PBF	LT3686HDD#TRPBF	LT3686IDD#TRPBF	LT3686EDD#TRPBF	LT3686IDD#PBF
Description	board eval for lt3686edd	IC REG BUCK ADJ 1.2A 10DFN	IC REG BUCK ADJ 1.2A 10-DFN	IC REG BUCK ADJ 1.2A 10DFN	IC REG BUCK ADJ 1.2A 10DFN	IC REG BUCK ADJ 1.2A 10DFN	IC REG BUCK ADJ 1.2A 10DFN
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	-	DFN	DFN	DFN	DFN	DFN	DFN
package instruction	-	HVSON, SOLCC10,.12,20	HVSON, SOLCC10,.12,20	HVSON, SOLCC10,.12,20	HVSON, SOLCC10,.12,20	HVSON, SOLCC10,.12,20	HVSON, SOLCC10,.12,20
Contacts	-	10	10	10	10	10	10
Manufacturer packaging code	-	DD	DD	DD	DD	DD	DD
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
control mode	-	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE
Control Technology	-	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION
Maximum input voltage	-	37 V	37 V	37 V	37 V	37 V	37 V
Minimum input voltage	-	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V
Nominal input voltage	-	10 V	10 V	10 V	10 V	10 V	10 V
JESD-30 code	-	S-PDSO-N10	S-PDSO-N10	S-PDSO-N10	S-PDSO-N10	S-PDSO-N10	S-PDSO-N10
JESD-609 code	-	e3	e3	e3	e3	e3	e3
length	-	3 mm	3 mm	3 mm	3 mm	3 mm	3 mm
Humidity sensitivity level	-	1	1	1	1	1	1
Number of functions	-	1	1	1	1	1	1
Number of terminals	-	10	10	10	10	10	10
Maximum operating temperature	-	125 °C	150 °C	150 °C	125 °C	125 °C	125 °C
Minimum operating temperature	-	-	-40 °C	-40 °C	-40 °C	-	-40 °C
Maximum output current	-	2.65 A	2.65 A	2.65 A	2.65 A	2.65 A	2.65 A
Nominal output voltage	-	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
Package body material	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	-	HVSON	HVSON	HVSON	HVSON	HVSON	HVSON
Encapsulate equivalent code	-	SOLCC10,.12,20	SOLCC10,.12,20	SOLCC10,.12,20	SOLCC10,.12,20	SOLCC10,.12,20	SOLCC10,.12,20
Package shape	-	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE
Package form	-	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	-	260	NOT SPECIFIED	NOT SPECIFIED	260	260	260
Certification status	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	-	0.8 mm	0.8 mm	0.8 mm	0.8 mm	0.8 mm	0.8 mm
surface mount	-	YES	YES	YES	YES	YES	YES
Switch configuration	-	BUCK	BUCK	BUCK	BUCK	BUCK	BUCK
Maximum switching frequency	-	2500 kHz	2500 kHz	2500 kHz	2500 kHz	2500 kHz	2500 kHz
technology	-	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR
Temperature level	-	OTHER	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	OTHER	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	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	-	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm
Terminal location	-	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	-	30	NOT SPECIFIED	NOT SPECIFIED	30	30	30
width	-	3 mm	3 mm	3 mm	3 mm	3 mm	3 mm

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