LTC3773EG#TRPBF datasheet, PDF

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LTC3773EG#TRPBF: DescriptionIC REG CTRLR BUCK 36SSOP; CategoryPower/power management The power supply circuit; File Size431KB，7 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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LTC3773EG#TRPBF Overview

IC REG CTRLR BUCK 36SSOP

LTC3773EG#TRPBF 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, SSOP36,.3
Contacts	36
Manufacturer packaging code	G
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	36 V
Minimum input voltage	3.3 V
Nominal input voltage	5 V
JESD-30 code	R-PDSO-G36
JESD-609 code	e3
length	12.8 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	36
Maximum operating temperature	85 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	SSOP
Encapsulate equivalent code	SSOP36,.3
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	2 mm
surface mount	YES
Switch configuration	PHASE-SHIFT
Maximum switching frequency	700 kHz
technology	CMOS
Temperature level	OTHER
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	5.3 mm

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QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 913

POLYPHASE 3-OUTPUT STEP-DOWN SUPPLY WITH TRACKING

LTC3773EUHF

DESCRIPTION

Demonstration circuit 913 is a high efficiency and

high density supply featuring the 3-output, 3-phase

synchronous buck regulator LTC3773. The input

voltage range of the demo board is designed for 4.5V

to 13.5V, though the LTC3773 controller can take up

to 36V

MAX

Vin. The outputs of this board are

2.5V/15A,1.8V/15A and 1.2V/15A. To minimize input

ripple current and capacitor size, there is 120

phase

clock interleaving among every two phases. The

power up/down tracking of the three output voltages

is programmable. The supply can be synchronized

to an external clock signal.

The critical power components are on the top side of

the PC board and are within a 1.7” x 1.7” “drop-in”

layout area. The small signal components and IC are

on the bottom side of the PC board within a 1” x 1”

board area. The LTC3773EUHF regulator IC is in a

small 5mm x 7mm QFN package with exposed ther-

mal pad for low thermal impedance. An optional 5V

bias supply is stuffed on the board to power the

LTC3773.

Design files for this circuit board are available.

Call the LTC factory.

LTC and LT are registered trademarks of Linear Technology Corporation.

Table 1. Performance Summary (T

= 25°C)

PARAMETER

Input Voltage

Output Voltage V

OUT1

Output Voltage V

OUT2

Output Voltage V

OUT3

Maximum Output Current

Switching frequency

Full Load Efficiency

CONDITION

Typical

OUT1

= 0A to 15A

OUT2

= 0A to 15A

OUT3

= 0A to 15A

VIN = 4.5V-13.5V

4.5V-13.5Vin

= 12V, V

OUT1

= 2.5V, I

OUT1

= 15A

= 12V, V

OUT2

= 1.8V, I

OUT2

= 15A

= 12V, V

OUT3

= 1.2V, I

OUT3

= 15A

VALUE

4.5V-13.5V

2.5V ± 2%

1.8V ± 2%

1.2V ± 2%

15A Each Output

400kHz

90% Typical

88 % Typical

84.5 % Typical

(15V abs_max)

QUICK START PROCEDURE

Demonstration circuit 913 is easy to set up to evaluate the performance of the LTC3773EUHF. Refer to Figure 1

for proper measurement equipment setup and follow the procedure below:

LTC3773EG#TRPBF Related Products

	LTC3773EG#TRPBF	DC913A	LTC3773EUHF#TRPBF	LTC3773EG#PBF	LTC3773EUHF#PBF
Description	IC REG CTRLR BUCK 36SSOP	board eval for ltc3773euhf	IC REG CTRLR BUCK 38QFN	Output current: - Switching operating frequency: 220kHz ~ 560kHz Output type: Transistor Driver Number of output voltage channels: 3 Function type: Step-Down Output configuration: Positive Three outputs, synchronous, three-phase with power up/down tracking function DC/DC controller	Output current: - Switching operating frequency: 220kHz ~ 560kHz Output type: Transistor Driver Number of output voltage channels: 3 Function type: Step-Down Output configuration: Positive Three outputs, synchronous, three-phase with power up/down tracking function DC/DC controller
Brand Name	Linear Technology	-	Linear Technology	Linear Technology	Linear Technology
Is it Rohs certified?	conform to	-	conform to	conform to	conform to
Parts packaging code	SSOP	-	QFN	SSOP	QFN
package instruction	SSOP, SSOP36,.3	-	HVQCCN, LCC38,.2X.28,20	SSOP, SSOP36,.3	HVQCCN, LCC38,.2X.28,20
Contacts	36	-	38	36	38
Manufacturer packaging code	G	-	UHF	G	UHF
Reach Compliance Code	compliant	-	compliant	compliant	compliant
ECCN code	EAR99	-	EAR99	EAR99	EAR99
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER	-	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER
control mode	CURRENT-MODE	-	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION	-	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION
Maximum input voltage	36 V	-	36 V	36 V	36 V
Minimum input voltage	3.3 V	-	3.3 V	3.3 V	3.3 V
Nominal input voltage	5 V	-	5 V	5 V	5 V
JESD-30 code	R-PDSO-G36	-	R-PQCC-N38	R-PDSO-G36	R-PQCC-N38
JESD-609 code	e3	-	e3	e3	e3
length	12.8 mm	-	7 mm	12.8 mm	7 mm
Humidity sensitivity level	1	-	1	1	1
Number of functions	1	-	1	1	1
Number of terminals	36	-	38	36	38
Maximum operating temperature	85 °C	-	85 °C	85 °C	85 °C
Package body material	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SSOP	-	HVQCCN	SSOP	HVQCCN
Encapsulate equivalent code	SSOP36,.3	-	LCC38,.2X.28,20	SSOP36,.3	LCC38,.2X.28,20
Package shape	RECTANGULAR	-	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH	-	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, SHRINK PITCH	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260	-	260	260	260
Certification status	Not Qualified	-	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	2 mm	-	0.8 mm	2 mm	0.8 mm
surface mount	YES	-	YES	YES	YES
Switch configuration	PHASE-SHIFT	-	PHASE-SHIFT	PHASE-SHIFT	PHASE-SHIFT
Maximum switching frequency	700 kHz	-	700 kHz	700 kHz	700 kHz
technology	CMOS	-	CMOS	CMOS	CMOS
Temperature level	OTHER	-	OTHER	OTHER	OTHER
Terminal surface	Matte Tin (Sn)	-	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	GULL WING	-	NO LEAD	GULL WING	NO LEAD
Terminal pitch	0.65 mm	-	0.5 mm	0.65 mm	0.5 mm
Terminal location	DUAL	-	QUAD	DUAL	QUAD
Maximum time at peak reflow temperature	30	-	30	30	30
width	5.3 mm	-	5 mm	5.3 mm	5 mm

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