LTC3707EGN#PBF datasheet, PDF - EEWORLD Datasheet

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LTC3707EGN#PBF: DescriptionIC REG CTRLR BUCK 28SSOP; CategoryPower/power management The power supply circuit; File Size565KB，6 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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LTC3707EGN#PBF Overview

IC REG CTRLR BUCK 28SSOP

LTC3707EGN#PBF Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	conform to
Maker	Linear ( ADI )
Parts packaging code	SSOP
package instruction	SSOP, SSOP28,.25
Contacts	28
Manufacturer packaging code	GN
Reach Compliance Code	compliant
ECCN code	EAR99
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER
control mode	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	28 V
Minimum input voltage	4.5 V
Nominal input voltage	15 V
JESD-30 code	R-PDSO-G28
JESD-609 code	e3
length	9.893 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	28
Maximum operating temperature	85 °C
Minimum operating temperature
Maximum output current	3 A
Nominal output voltage	3.35 V
Package body material	PLASTIC/EPOXY
encapsulated code	SSOP
Encapsulate equivalent code	SSOP28,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.75 mm
surface mount	YES
Switch configuration	PHASE-SHIFT
Maximum switching frequency	360 kHz
technology	CMOS
Temperature level	OTHER
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.635 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	3.899 mm

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QUICK START GUIDE FOR DEMONSTRATION CIRCUIT DC455

HIGH EFFICIENCY DUAL PHASE 2-OUTPUT POWER SUPPLY

LTC3707EGN

DESCRIPTION

Demonstration circuit DC455 is a dual output, step-

down, synchronous buck converter featuring the 150kHz

to 300kHz LTC3707EGN controller. This controller can

operate with input voltages from 7V to 21V. Output 1 is

Table 1. Performance Summary

PARAMETER

Minimum Input Voltage

Maximum Input Voltage

OUT1

OUT2

Switching Frequency

= 7V to 21V, I

OUT1

= 0A to 5A

= 7V to 24V, I

OUT1

= 0A to 5A

Jumper selectable

CONDITION

VALUE

21V

5V%

3.3V%

150kHz–300kHz

5V with loads up to 5A and output 2 is 3.3V with loads

up to 5A.

Design files for this circuit board are avail-

able. Call the LTC factory.

QUICK START PROCEDURE

Demonstration circuit DC455 is easy to set up to

evaluate the performance of the LTC3707EGN. Refer to

Figure 1 for proper measurement equipment setup and

follow the procedure below:

NOTE:

When measuring the input or output voltage rip-

Switch on the Vout1 channel by removing the RUN1

jumper. Vout1 should be 5V ±0.1V.

Increase the load current of Vout1 to 5A. At 7V in-

ple, care must be taken to avoid a long ground lead on

the oscilloscope probe. Measure the input or output

voltage ripple by touching the probe tip directly across

the Vin or Vout and GND terminals. See Figure 2 for

proper scope probe technique.

With the power off, place the jumpers as shown in

put voltage, the input current should be less than

4A. Slowly increase the input voltage up to 21V. At

21V input voltage, the input current should be less

than 1.5A.

Decrease Vout1 load current to 0A. Reduce the in-

put voltage to 7V. Switch on the Vout2 channel by

removing the RUN2 jumper. The output voltage of

Vout2 should be 3.3V ±0.05V.

Increase the load current of Vout2 to 5A. At 7V in-

Figure 1.

Connect the desired loads to Vout1 and Vout2. The

loads can be as high as 5A for Vout1 and 5A for

Vout2. Pre-set the load current to 0A.

Set Vin to 7V (recommended). The rated input volt-

put, the input current should be less than 3A.

Slowly increase the input voltage to 21V. At 21V in-

put, the input current should be less than 1.0A.

age range is 7V to 21V.

LTC3707EGN#PBF Related Products

	LTC3707EGN#PBF	LTC3707EGN#TR	DC455A	LTC3707IGN#TRPBF	LTC3707IGN#PBF	LTC3707EGN#TRPBF
Description	IC REG CTRLR BUCK 28SSOP	IC reg ctrlr buck pwm CM 28-ssop	board eval for ltc3707egn	IC REG CTRLR BUCK 28SSOP	IC REG CTRLR BUCK 28SSOP	IC REG CTRLR BUCK 28SSOP
Brand Name	Linear Technology	Linear Technology	-	Linear Technology	Linear Technology	Linear Technology
Is it Rohs certified?	conform to	incompatible	-	conform to	conform to	conform to
Maker	Linear ( ADI )	Linear ( ADI )	-	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )
Parts packaging code	SSOP	SSOP	-	SSOP	SSOP	SSOP
package instruction	SSOP, SSOP28,.25	SSOP, SSOP28,.25	-	SSOP, SSOP28,.25	SSOP, SSOP28,.25	SSOP, SSOP28,.25
Contacts	28	28	-	28	28	28
Manufacturer packaging code	GN	GN	-	GN	GN	GN
Reach Compliance Code	compliant	_compli	-	compliant	compliant	compliant
ECCN code	EAR99	EAR99	-	EAR99	EAR99	EAR99
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER	SWITCHING CONTROLLER	-	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER
control 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
Maximum input voltage	28 V	28 V	-	28 V	28 V	28 V
Minimum input voltage	4.5 V	4.5 V	-	4.5 V	4.5 V	4.5 V
Nominal input voltage	15 V	15 V	-	15 V	15 V	15 V
JESD-30 code	R-PDSO-G28	R-PDSO-G28	-	R-PDSO-G28	R-PDSO-G28	R-PDSO-G28
JESD-609 code	e3	e0	-	e3	e3	e3
length	9.893 mm	9.893 mm	-	9.893 mm	9.893 mm	9.893 mm
Humidity sensitivity level	1	1	-	1	1	1
Number of functions	1	1	-	1	1	1
Number of terminals	28	28	-	28	28	28
Maximum operating temperature	85 °C	85 °C	-	85 °C	85 °C	85 °C
Maximum output current	3 A	3 A	-	3 A	3 A	3 A
Nominal output voltage	3.35 V	3.35 V	-	3.35 V	3.35 V	3.35 V
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SSOP	SSOP	-	SSOP	SSOP	SSOP
Encapsulate equivalent code	SSOP28,.25	SSOP28,.25	-	SSOP28,.25	SSOP28,.25	SSOP28,.25
Package shape	RECTANGULAR	RECTANGULAR	-	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH	-	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260	235	-	260	260	260
Certification status	Not Qualified	Not Qualified	-	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.75 mm	1.75 mm	-	1.75 mm	1.75 mm	1.75 mm
surface mount	YES	YES	-	YES	YES	YES
Switch configuration	PHASE-SHIFT	PHASE-SHIFT	-	PHASE-SHIFT	PHASE-SHIFT	PHASE-SHIFT
Maximum switching frequency	360 kHz	360 kHz	-	360 kHz	360 kHz	360 kHz
technology	CMOS	CMOS	-	CMOS	CMOS	CMOS
Temperature level	OTHER	OTHER	-	INDUSTRIAL	INDUSTRIAL	OTHER
Terminal surface	Matte Tin (Sn)	Tin/Lead (Sn/Pb)	-	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	GULL WING	GULL WING	-	GULL WING	GULL WING	GULL WING
Terminal pitch	0.635 mm	0.635 mm	-	0.635 mm	0.635 mm	0.635 mm
Terminal location	DUAL	DUAL	-	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	30	20	-	30	30	30
width	3.899 mm	3.899 mm	-	3.899 mm	3.899 mm	3.899 mm

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