参数资料
型号: LTC3568EDD#PBF
厂商: Linear Technology
文件页数: 2/18页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 1.8A 10DFN
标准包装: 121
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 5 V
输入电压: 2.5 V ~ 5.5 V
PWM 型: 电流模式,混合
频率 - 开关: 最高 4MHz
电流 - 输出: 1.8A
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: 10-WFDFN 裸露焊盘
包装: 管件
供应商设备封装: 10-DFN(3x3)
产品目录页面: 1335 (CN2011-ZH PDF)
LTC3568
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PV IN , SV IN Voltages ..................................... –0.3V to 6V
V FB , I TH , SHDN/R T Voltages .......... –0.3V to (V IN + 0.3V)
SYNC/MODE Voltage .................... –0.3V to (V IN + 0.3V)
SW Voltage ................................... –0.3V to (V IN + 0.3V)
PGOOD Voltage ............................................ –0.3V to 6V
Operating Junction Temperature Range
(Note 2) ............................................. –40°C to 125°C
Junction Temperature (Notes 5, 8)........................ 125°C
Storage Temperature Range .................. –65°C to 125°C
ORDER INFORMATION
PIN CONFIGURATION
TOP VIEW
SHDN/R T 1 10 I TH
SYNC/MODE 2 9 V FB
SGND 3 11 8 PGOOD
SW 4 7 SV IN
PGND 5 6 PV IN
DD PACKAGE
10-LEAD (3mm 3mm) PLASTIC DFN
T JMAX = 125°C, θ JA = 43°C/W, θ JC = 3°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
LEAD FREE FINISH
LTC3568EDD#PBF
LTC3568IDD#PBF
LEAD BASED FINISH
LTC3568EDD
LTC3568IDD
TAPE AND REEL
LTC3568EDD#TRPBF
LTC3568IDD#TRPBF
TAPE AND REEL
LTC3568EDD#TR
LTC3568IDD#TR
PART MARKING*
LCSG
LCSG
PART MARKING*
LCSG
LCSG
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
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/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
 
ELECTRICAL CHARACTERISTICS The  l  denotes the specifications which apply over the full operating 
temperature range, otherwise specifications are at T A  = 25°C. V IN  = 3.3V, R T  = 324k unless otherwise specified. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V IN
I FB
Operating Voltage Range
Feedback Pin Input Current
(Note 3)
2.25
5.5
±0.1
V
μA
V FB
Δ V LINEREG
Δ V LOADREG
Feedback Voltage
Reference Voltage Line Regulation
Output Voltage Load Regulation
LTC3568E (Note 3)
LTC3568I (Note 3)
V IN = 2.25V to 5V
I TH = 0.36, (Note 3)
I TH = 0.84, (Note 3)
l
l
l
l
0.784
0.780
0.8
0.8
0.04
0.02
–0.02
0.816
0.816
0.2
0.2
–0.2
V
V
%/V
%
%
g m(EA)
Error Amplifier Transconductance
I TH Pin Load = ±5μA (Note 3)
800
μS
I S
V SHDN/RT
Input DC Supply Current (Note 4)
Active Mode
Sleep Mode
Shutdown
Shutdown Threshold High
Active Oscillator Resistor
V FB = 0.75V, SYNC/MODE = 3.3V
V SYNC/MODE = 3.3V, V FB = 1V
V SHDN/RT = 3.3V
240
62
0.1
V IN – 0.6
324k
350
100
1
V IN – 0.4
1M
μA
μA
μA
V
Ω
3568fa
 
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