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参数资料
| 型号： | LT3681EDE |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 4.4 A SWITCHING REGULATOR, 3100 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封装： | 4 X 3 MM, PLASTIC, DFN-14 |
| 文件页数： | 12/24页 |
| 文件大小： | 367K |
| 代理商： | LT3681EDE |
LT3681
2
3681f
ELECTRICAL CHARACTERISTICS
VIN, RUN/SS Voltage.................................................36V
BOOST Pin Voltage ...................................................56V
BOOST Pin Above SW Pin.........................................30V
FB, RT, VC Voltage.......................................................5V
BIAS, PG, BD Voltage................................................30V
Maximum Junction Temperature .......................... 125°C
DC above DA.............................................................40V
Operating Temperature Range (Note 2)
LT3681E............................................... –40°C to 85°C
Storage Temperature Range................... –65°C to 150°C
(Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Input Voltage
●
3
3.6
V
Quiescent Current from VIN
VRUN/SS = 0.2V
0.01
0.5
μA
VBIAS = 3V, Not Switching
●
22
60
μA
VBIAS = 0, Not Switching
75
120
μA
Quiescent Current from BIAS
VRUN/SS = 0.2V
0.01
0.5
μA
VBIAS = 3V, Not Switching
●
50
120
μA
VBIAS = 0, Not Switching
05
μA
Minimum Bias Voltage
2.7
3
V
Feedback Voltage
●
1.25
1.24
1.265
1.29
1.3
V
FB Pin Bias Current (Note 3)
VFB = 1.25V, VC = 0.4V
●
30
100
nA
FB Voltage Line Regulation
4V < VIN < 34V
0.002
0.02
%/V
Error Amp GM
330
μMho
Error Amp Gain
800
VC Source Current
65
μA
VC Sink Current
85
μA
VC Pin to Switch Current Gain
3.5
A/V
VC Clamp Voltage
2V
The
● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 10V, VRUNS/SS = 10V, VBOOST = 15V, VBIAS = 3.3V unless otherwise
noted. (Note 2)
ABSOLUTE
AXI U
RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UU
W
1
2
3
4
5
6
7
14
13
12
11
10
9
8
RUN/SS
V
IN
SW
BOOST
BD
DC
DA
PG
BIAS
FB
GND
VC
RT
GND
TOP VIEW
DE14MA PACKAGE
14-LEAD (4mm
3mm) PLASTIC DFN
15
16
TJMAX = 125°C, θJA = 43°C/W
EXPOSED PAD (PIN 15) IS GND, MUST BE SOLDERED TO PCB
EXPOSED PAD PIN 16 IS DC
ORDER PART NUMBER
DE PART MARKING
LT3681EDE
3681
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 specied with wider operating temperature ranges.
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相关代理商/技术参数 |
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