Linear Technology DC2194A, Демонстрационное руководство

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dc2194af
DEMO MANUAL DC2194A
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.
schematic Diagram
5 5
4 4
3 3
2 2
1 1
D
D
C
C
B
B
A
A
OPTIONAL JUMPER FOR DUAL PHASE SINGLE OUTPUT CONFIGURATION
VOUT1
Load Transient Circuit
VOUT2
2
LT
GL
m
DUTY CYCLE 5% MAX
IOSTEP
10mV / A
INTVCC
VOUT2
VOUT1
VOUT1
VOUT2
RUN1
RUN2
VFB2
VOUT2
VOUT1
SIZE DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
Thursday, January 28, 2016
22
HIGH DENSITY, DUAL 4A STEP-DOWN
N/A
LTM4642IY
DEMO CIRCUIT 2194A
MODULE REGULATOR
SIZE DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
Thursday, January 28, 2016
22
HIGH DENSITY, DUAL 4A STEP-DOWN
N/A
LTM4642IY
DEMO CIRCUIT 2194A
MODULE REGULATOR
SIZE DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
Thursday, January 28, 2016
22
HIGH DENSITY, DUAL 4A STEP-DOWN
N/A
LTM4642IY
DEMO CIRCUIT 2194A
MODULE REGULATOR
R29 10K
IOSTEP CLK
E17
R25 OPT
C18 OPT
C16 1uF
R28 OPT 2010
Q1
RJK0305DPB
3
2
4
5
1
J1
C17 1uF
GND
E18
R35 OPT 2512
R27
0 Ohm 2010
J9
R26
OPT
C19 1uF 0805
J2
R30 0.010 1W 2512