参数资料
型号: LT3570EFE#TRPBF
厂商: Linear Technology
文件页数: 2/20页
文件大小: 288K
描述: IC REG BUCK/BST/LINEAR 20TSSOP
标准包装: 2,500
拓扑: 降压(降压)(1),升压(升压)(1),线性(LDO)(1)
功能: 车载
输出数: 3
频率 - 开关: 500kHz ~ 2.1MHz
电压/电流 - 输出 1: 可调至0.8V,1.5A
电压/电流 - 输出 2: 可调至0.8V,1.5A
电压/电流 - 输出 3: 控制器
带 LED 驱动器:
带监控器:
带序列发生器:
电源电压: 2.5 V ~ 36 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)裸露焊盘
供应商设备封装: 20-TSSOP-EP
包装: 带卷 (TR)
LT3570
2
3570fb
ABSOLUTE MAXIMUM RATINGS
V
IN1
, V
IN2
, V
IN3
, V
BIAS
 Voltage ..................................40V
BOOST Voltage .........................................................60V
BOOST Pin Above SW2 .............................................25V
NPN_DRV Voltage .......................................................8V
SW1 Voltage .............................................................40V
SHDN1, SHDN2, SHDN3 Voltage ..............................40V
SYNC, R
T
 Voltage ........................................................3V
SS1, SS2 Voltage ........................................................3V
FB1, FB2, FB3 Voltage ...............................................10V
(Note 1)
V
C1
, V
C2
 Voltage ..........................................................3V
Maximum Junction Temperature...........................125癈
Operating Temperature Range (Note 2)..40癈 to 125癈
Storage Temperature Range
  TSSOP ...............................................65癈 to 150癈
  QFN ....................................................65癈 to 125癈
Lead Temperature (Soldering, 10 sec)
  TSSOP Only ......................................................300癈
24
23
22
21
20
19
7
8
9
TOP VIEW
25
UF PACKAGE
24-LEAD (4mm 4mm) PLASTIC QFN
10
11
12
6
5
4
3
2
1
13
14
15
16
17
18
V
IN2
V
IN2
SW2
SW1
GND
GND
V
C2
SS2
GND
R
T
SYNC
SHDN3
T
JMAX
 = 125癈, ?/DIV>
JA
 = 37癈/W
EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB
FE PACKAGE
20-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
9
10
TOP VIEW
20
19
18
17
16
15
14
13
12
11
FB1
SHDN1
SHDN2
SHDN3
SYNC
R
T
SS2
V
C2
FB2
FB3
V
C1
SS1
V
IN1
GND
SW1
SW2
V
IN2
BOOST
V
IN3
NPN_DRV
21
T
JMAX
 = 125癈, ?/DIV>
JA
 = 38癈/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
 PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3570EUF#PBF
LT3570EUF#TRPBF    3570
24-Lead (4mm ?4mm) Plastic QFN
40癈 to 125癈
LT3570IUF#PBF
LT3570IUF#TRPBF
3570
24-Lead (4mm ?4mm) Plastic QFN
40癈 to 125癈
LT3570EFE#PBF
LT3570EFE#TRPBF
LT3570FE
20-Lead Plastic TSSOP
40癈 to 125癈
LT3570IFE#PBF
LT3570IFE#TRPBF
LT3570FE
20-Lead Plastic TSSOP
40癈 to 125癈
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/
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