参数资料
型号: LT3430IFE-1#PBF
厂商: Linear Technology
文件页数: 2/28页
文件大小: 0K
描述: IC REG BUCK ADJ 3A 16TSSOP
标准包装: 95
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 1.2 V ~ 54 V
输入电压: 5.5 V ~ 60 V
PWM 型: 电流模式
频率 - 开关: 100kHz
电流 - 输出: 3A
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: 16-TSSOP(0.173",4.40mm)裸露焊盘
包装: 管件
供应商设备封装: 16-TSSOP-EP
产品目录页面: 1331 (CN2011-ZH PDF)
LT3430/LT3430-1
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PACKAGE/ORDER INFORMATION
Input Voltage (V IN ) .................................................. 60V
BOOST Pin Above SW (Note 11) .............................. 35V
BOOST Pin Voltage ................................................. 68V
SYNC Voltage ............................................................. 7V
? S ? H ? D ? N Voltage ............................................................ 6V
BIAS Pin Voltage ..................................................... 30V
FB Pin Voltage/Current .................................. 3.5V/2mA
GND
SW
V IN
V IN
SW
BOOST
NC
1
2
3
4
5
6
7
TOP VIEW
17
16 GND
15 SHDN
14 SYNC
13 NC
12 FB
11 V C
10 BIAS
Operating Junction Temperature Range
GND
8
9
GND
LT3430EFE (Notes 8, 10) .................. –40°C to 125°C
LT3430IFE (Notes 8, 10) .................. –40°C to 125°C
Storage Temperature Range ................. –65°C to 150°C
FE PACKAGE
16-LEAD PLASTIC TSSOP
T JMAX = 125°C, θ JA = 45°C/W, θ JC = 10°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
Lead Temperature (Soldering, 10 sec) ................ 300°C
ORDER PART NUMBER
LT3430EFE
LT3430IFE
LT3430EFE-1
LT3430IFE-1
FE PART MARKING
3430EFE
3430IFE
3430EFE-1
3430IFE-1
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T J = 25°C. V IN = 15V, V C = 1.5V, ? S ? H ? D ? N = 1V, BOOST = Open Circuit,
SW = Open Circuit, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Reference Voltage (V REF )
FB Input Bias Current
Error Amp Voltage Gain
Error Amp g m
V OL + 0.2 ≤ V C ≤ V OH – 0.2
5.5V ≤ V IN ≤ 60V
(Note 2)
dl (V C ) = ±10μA
1.204
1.195
200
1650
1000
1.219
–0.2
400
2200
1.234
1.243
–1.5
3300
4200
V
μA
V/V
μMho
μMho
V C to Switch g m
3.4
A/V
EA Source Current
EA Sink Current
FB = 1V
FB = 1.4V
125
100
225
225
450
500
μA
μA
V C Switching Threshold
V C High Clamp
Switch Current Limit
Duty Cycle = 0
? S ? H ? D ? N = 1V
V C Open, Boost = V IN + 5V, FB = 1V
0.9
2.1
V
V
–40°C ≤ T J ≤ 25°C
T J = 125°C (Note 9)
3
2.5
5
4
6.5
5.5
A
A
Switch On Resistance
I SW = 2.5A, Boost = V IN + 5V (Note 7)
0.1
0.14
Ω
0.18
Ω
Maximum Switch Duty Cycle (LT3430)
FB = 1V
93
90
96
%
%
34301fa
2
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