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参数资料
| 型号： | DC1453A |
| 厂商： | Linear Technology |
| 文件页数： | 2/24页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL LTM4619 |
| 软件下载： | LTM4619 Spice Model |
| 设计资源： | DC1453A Design Files DC1453A Schematic |
| 标准包装： | 1 |
| 系列： | LTM®, uModule® |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 2，非隔离 |
| 输出电压： | 1.8V，3.3V |
| 电流 - 输出： | 4A |
| 输入电压： | 4.5 ~ 28 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 500kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | LTM4619 |
| 相关产品： | LTM4619IV#PBF-ND - IC SWIT REG BUCK 4A ADJ 144LGA LTM4619EV#PBF-ND - IC SWIT REG BUCK 4A ADJ 144LGA |
LTM4619
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
V IN ............................................................. –0.3V to 28V
INTV CC , PGOOD, RUN1, RUN2, EXTV CC ....... –0.3V to 6V
V FB1 , V FB2 ................................................. –0.3V to 2.7V
COMP1, COMP2 (Note 4) .......................... –0.3V to 2.7V
MODE/PLLIN, TK/SS1, TK/SS2,
FREQ/PLLFLTR ..................................... –0.3V to INTV CC
V OUT1 , V OUT2 .................................................. 0.8V to 5V
Internal Operating Temperature Range
(Note 2) .................................................. –40°C to 125°C
Maximum Reflow Body Temperature .................... 245°C
Storage Temperature Range .................. –55°C to 125°C
RUN2
EXTV CC
SW2
PGOOD
INTV CC
M
L
K
J
H
G
F
E
D
C
TK/SS2
V IN
V OUT2
V FB2
TOP VIEW
COMP2 COMP1
SGND
GND
V FB1
TK/SS1
V OUT1
FREQ/PLLFLTR
RUN1
SW1
MODE/PLLIN
B
A
1
2
3
4
5
6
7
8
9
10
11
12
LGA PACKAGE
144-LEAD (15mm × 15mm × 2.82mm)
T JMAX = 125°C, θ JA = 13°C/W, θ JP = 6°C/W
θ JA DERIVED FROM 95mm × 76mm PCB WITH 4 LAYERS
WEIGHT = 1.7g
ORDER INFORMATION
LEAD FREE FINISH
LTM4619EV#PBF
LTM4619IV#PBF
TRAY
LTM4619EV#PBF
LTM4619IV#PBF
PART MARKING*
LTM4619V
LTM4619V
PACKAGE DESCRIPTION
144-Lead (15mm × 15mm × 2.8mm) LGA
144-Lead (15mm × 15mm × 2.8mm) LGA
TEMPERATURE RANGE
–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 = 12V. Per typical application in Figure 18.
Specified as each channel. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V IN(DC)
V OUT1, 2(RANGE)
Input DC Voltage
Output Voltage Range
V IN ≤ 5.5V, Connect V IN and INTV CC Together
V IN = 5.5V to 26.5V
l
l
4.5
0.8
26.5
5.0
V
V
V OUT1, 2(DC)
Output Voltage
C IN = 10μF × 1, C OUT = 100μF Ceramic, 100μF POSCAP,
R SET = 28.0k?
V IN = 12V, V OUT = 2.5V, I OUT = 0A
V IN = 12V, V OUT = 2.5V, I OUT = 4A
l
2.483
2.470
2.52
2.52
2.557
2.570
V
V
Input Specifications
V IN(UVLO)
Undervoltage Lockout Thresholds V INTVCC Rising
V INTVCC Falling
2.00
1.85
2.2
2.0
2.35
2.15
V
V
4619fb
2
For more information www.linear.com/LTM4619
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