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参数资料
| 型号： | LT3487EDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST INV ADJ 10DFN |
| 标准包装： | 121 |
| 类型： | 升压（升压），反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.23 V ~ 28 V |
| 输入电压： | 2.3 V ~ 16 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 2MHz |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°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： | 1331 (CN2011-ZH PDF) |
LT3487
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
V IN Voltage ............................................................... 16V
TOP VIEW
V BAT Voltage ............................................................. 16V
SWP, SWN Voltage................................................... 32V
CAP
SWP
1
2
10 V POS
9 FBP
CAP, V POS .................................................................30V
DN Voltage ............................................................. –32V
RUN/SS Voltage ..........................................................8V
V BAT
SWN
DN
3
4
5
11
8 RUN/SS
7 FBN
6 V IN
FBP Voltage................................................................ 6V
FBN Voltage ................................................ –0.2V to 6V
Maximum Junction Temperature .......................... 125°C
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
θ JA = 43°C/W, θ JC = 3°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE CONNECTED TO PCB
Operating Temperature Range ................. –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
ORDER PART NUMBER
LT3487EDD
DD PART MARKING
LBXB
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 A = 25°C. V IN = 3.6V, V BAT = 3.6V, unless otherwise noted.
PARAMETER
Operating Voltage Range
Quiescent Current
RUN/SS Voltage Threshold (Full Current)
RUN/SS Voltage Threshold (Shutdown)
CONDITIONS
RUN/SS = 3V, Not Switching
RUN/SS = 0V
(Note 3)
●
MIN
2.3
100
TYP
3.7
5.3
160
MAX
16
5
8
1.6
UNITS
V
mA
μA
V
mV
RUN/SS Pin Current
FBP (Positive Channel) Pin Voltage
FBN (Negative Channel) Pin Voltage
RUN/SS = 0V (Note 4)
●
●
1
1.19
–7
1.4
1.23
3
2
1.27
12
μA
V
mV
FBP Pin Voltage Line Regulation
FBN Pin Voltage Line Regulation
0.007
0.001
%/V
mV/V
FBP Pin Bias Current
FBN Pin Bias Current
FBP Threshold (Percent of Final Value)
●
●
24.4
24.4
25
25
87
25.6
25.6
90
μA
μA
%
to Start Negative Channel
Switching Frequency
1.85
2
2.15
MHz
Maximum Duty Cycle
●
87
93
%
Positive Channel Switch Current Limit
Negative Channel Switch Current Limit
Positive Channel V CESAT
Negative Channel V CESAT
(Note 5)
(Note 5)
I SWP = 400mA
I SWN = 600mA
●
●
750
900
920
1090
280
340
mA
mA
mV
mV
3487f
2
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