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参数资料
| 型号： | LTC3409IDD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 0.6A 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： | 0.62 V ~ 5.5 V |
| 输入电压： | 1.6 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 1.7MHz ~ 2.6MHz |
| 电流 - 输出： | 600mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°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-EP（3x3） |
LTC3409
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage ................................... – 0.3V to 6V
PIN CONFIGURATION
TOP VIEW
RUN, V FB , MODE, SYNC Voltages . – 0.3V to (V IN + 0.3V)
V FB
1
8
SYNC
SW Voltage ................................... – 0.3V to (V IN + 0.3V)
Operating Temperature Range (Note 2) .. –40°C to 85°C
Junction Temperature (Note 3) ........................... 125°C
GND
V IN
V IN
2
3
4
9
7
6
5
RUN
SW
MODE
Storage Temperature Range.................. –65°C to 125°C
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
T JMAX = 125°C, θ JA = 43°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LTC3409EDD#PBF
LTC3409IDD#PBF
TAPE AND REEL
LTC3409EDD#TRPBF
LTC3409IDD#TRPBF
PART MARKING*
LBNM
LBNM
PACKAGE DESCRIPTION
8-Lead (3mm × 3mm) Plastic DFN
8-Lead (3mm × 3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges. *Temperature grades are 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 ● denotes speci?cations which apply over the full operating
temperature range, otherwise speci?cations are T A = 25°C. V IN = 2.2V unless otherwise speci?ed.
SYMBOL
V RUN
I RUN
V MODE
I MODE
V SYNCTH
I SYNC
V FB
PARAMETER
RUN Threshold
RUN Leakage Current
MODE Threshold
MODE Leakage Current
SYNC Threshold
SYNC Leakage Current
Regulated Feedback Voltage
CONDITIONS
V RUN = 0V or = 2.2V
V MODE = 0V or = 2.2V
V SYNC = 0V or = 2.2V
(Note 4) T A = 25°C
(Note 4) 0°C ≤ T A ≤ 85°C
(Note 4) –40°C ≤ T A ≤ 85°C
●
●
●
●
MIN
0.3
0.3
0.3
0.6007
0.5992
0.5977
TYP
0.65
0.01
0.65
0.01
0.65
0.01
0.6130
0.6130
0.6130
MAX
1.1
1
1.1
1
1.1
1
0.6252
0.6268
0.6283
UNITS
V
μA
V
μA
V
μA
V
V
V
I VFB
Feedback Current
±30
nA
ΔV OVL
ΔV FB
ΔV OUT
I PK
V LOADREG
V IN
ΔV FBOVL Overvoltage Lockout
Reference Voltage Line Regulation
Output Voltage Line Regulation
Peak Inductor Current
Output Voltage Load Regulation
Input Voltage Range
ΔV OVL = ΔV FBOVL – V FB (Note 6)
1.6V < V IN < 5.5V (Note 4)
I OUT = 100mA, 1.6V < V IN < 5.5V
V FB = 0.5V or V OUT = 90%
V OUT = 1.2V, Pulse Skip Mode, 0 < I LOAD < 600mA
●
●
35
0.75
1.6
61
0.04
0.04
1
0.5
85
0.4
0.4
1.3
5.5
mV
%/V
%/V
A
%
V
3409fc
2
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