参数资料
型号: LT3653IDCB#TRPBF
厂商: Linear Technology
文件页数: 2/12页
文件大小: 0K
描述: IC REG BUCK ADJ 1.2A 8DFN
标准包装: 2,500
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 4.8 V ~ 6 V
输入电压: 7.5 V ~ 30 V
PWM 型: 电流模式
频率 - 开关: 1.5MHz
电流 - 输出: 1.2A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 8-DFN(3x2)
LT3653
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Voltage (V IN ) (Note 3) ......................................60V
PIN CONFIGURATION
TOP VIEW
Boost Pin Voltage (BOOST).......................................50V
V IN 1
8 SW
Boost Pin Above SW Pin ...........................................25V
HVOK, V OUT , I SENSE Pins .............................................6V
V C Pin .........................................................................3V
HVOK 2
V C 3
I LIM 4
9
7 BOOST
6 I SENSE
5 V OUT
Operating Junction Temperature Range (Notes 2, 5)
LT3653E ............................................. –40°C to 125°C
LT3653I .............................................. –40°C to 125°C
Storage Temperature.............................. –65°C to 150°C
ORDER INFORMATION
DCB PACKAGE
8-LEAD (2mm 3mm) PLASTIC DFN
θ JA = 64°C/W, θ JC = 10°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
LEAD FREE FINISH
LT3653EDCB#PBF
LT3653IDCB#PBF
TAPE AND REEL
LT3653EDCB#TRPBF
LT3653IDCB#TRPBF
PART MARKING*
LDJN
LDJN
PACKAGE DESCRIPTION
8-Lead (2mm × 3mm) Plastic DFN
8-Lead (2mm × 3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges. *The temperature grade is identi?ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based ?nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS
The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C; V IN = 12V, V BOOST = 17V, V SW = 0V, R ILIM = 33.2k, unless otherwise noted.
PARAMETER
V IN Operating Range
V IN Undervoltage Lockout
CONDITIONS
Rising
l
MIN
7.5
6.5
TYP
7
MAX
30
7.5
UNITS
V
V
V IN Undervoltage Hysteresis
500
mV
V IN Overvoltage Lockout
Rising
30
33
36
V
V IN Overvoltage Lockout Hysteresis
1
V
V IN Supply Current
V OUT Reverse Leakage Current
V OUT Nominal Set Point
V OUT Current Limit Range
Not Switching
V IN = 0V, V OUT = 4.8V
V IN = Open, V OUT = 4.8V
V C Pin = Open
l
0.4
2.8
4.8
3.4
1
1
5
1.2
mA
μA
μA
V
A
V OUT Current Limit
Operating Frequency
R ILIM = 33.2k
l
l
0.85
0.80
1350
1
1
1500
1.15
1.2
1650
A
A
kHz
V C Source Current
V C Sink Current
V C Switching Threshold
V OUT = 0V, V C = 1.5V
V OUT = 5V, V C = 1.5V
I OUT = 0mA
12
10
1.1
μA
μA
V
3653f
2
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