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参数资料
| 型号： | DC1385A |
| 厂商： | Linear Technology |
| 文件页数： | 2/20页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL LTM4614 |
| 软件下载： | LTM4614 |
| 设计资源： | DC1385A Design Files DC1385A Schematic |
| 标准包装： | 1 |
| 系列： | µModule® |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 2，非隔离 |
| 输出电压： | 1.2V，1.8V |
| 电流 - 输出： | 4A，4A |
| 输入电压： | 2.375 ~ 5.5V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 1.25MHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | LTM4614 |
| 相关产品： | LTM4614IV#PBF-ND - IC UMODULE DC/DC DUAL 4A 144LGA LTM4614EV#PBF-ND - IC UMODULE DC/DC DUAL 4A 144LGA |
LTM4614
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
(See Pin Functions, Pin Configuration Table)
FB1
V IN1 , V IN2 , PGOOD1, PGOOD2...................... –0.3V to 6V
COMP1, COMP2, RUN/SS1, RUN/SS2
FB1, FB2,TRACK1, TRACK2 ......................... –0.3V to V IN
SW1, SW2, V OUT1 , V OUT2 .............. –0.3V to (V IN + 0.3V)
Internal Operating Temperature Range
(Notes 2, 3) ............................................ –40°C to 125°C
Storage Temperature Range .................. –55°C to 125°C
Body Temperature, Solder Reflow ......................... 245°C
V IN1
SW1
RUN/SS1
M
L
K
J
H
G
PGOOD1
TRACK1 COMP1
TOP VIEW
GND1
V OUT1
F
V IN2
SW2
E
D
C
B
A
GND2
V OUT2
1
2
3
4
5
6
7
8
9
10
11
12
RUN/SS2
PGOOD2
TRACK2
COMP2
FB2
LGA PACKAGE
144-LEAD (15mm × 15mm × 2.82mm)
T JMAX = 125°C, θ JCbottom = 2-3°C/W, θ JA = 15°C/W, θ JCtop = 25°C/W, θ Values Determined
Using a 4-Layer 95mm × 76mm PCB, Weight = 1.7g
ORDER INFORMATION
LEAD FREE FINISH
LTM4614EV#PBF
LTM4614IV#PBF
TRAY
LTM4614EV#PBF
LTM4614IV#PBF
PART MARKING*
LTM4614V
LTM4614V
PACKAGE DESCRIPTION
144-Lead (15mm × 15mm × 2.82mm) LGA
144-Lead (15mm × 15mm × 2.82mm) LGA
TEMPERATURE RANGE (Note 2)
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
This product is only offered in trays. For more information go to: http://www.linear.com/packaging/
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full internal
operating temperature range (Note 2), otherwise specifications are at T A = 25°C. V IN = 5V unless otherwise noted. Refer to Figure 1.
Specified as each channel (Note 5).
SYMBOL
V IN(DC)
PARAMETER
Input DC Voltage
CONDITIONS
l
MIN
2.375
TYP
MAX
5.5
UNITS
V
V OUT(DC)
V IN(UVLO)
Output Voltage
Undervoltage Lockout Threshold
C IN = 22μF, C OUT = 100μF, R FB = 5.76k
V IN = 2.375V to 5.5V, I OUT = 0A to 4A (Note 4)
0°C ≤ T J ≤ 125°C
I OUT = 0A
l
1.460
1.45
1.6
1.49
1.49
2
1.508
1.512
2.3
V
V
V
I INRUSH(VIN)
Input Inrush Current at Start-Up
I OUT = 0A, C IN = 22μF, C OUT = 100μF, V OUT = 1.5V
V IN = 5.5V
0.35
A
I Q(VIN)
Input Supply Bias Current
V IN = 2.375V, V OUT = 1.5V, Switching Continuous
V IN = 5.5V, V OUT = 1.5V, Switching Continuous
Shutdown, RUN = 0, V IN = 5V
20
35
7
12
mA
mA
μA
4614fb
2
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