EXPOSED PAD IS GND (PIN 9) MUST BE SOLDERED TO PCB
T
JMAX
= 125°C,
θ
JA
= 40°C/ W
θ
JC
= 10°C/W MEASURED AT PIN 9
ORDER INFORMATION
LEAD FREE FINISH
LT3014ES5#PBF
LT3014IS5#PBF
LT3014HVES5#PBF
LT3014HVIS5#PBF
LT3014EDD#PBF
LT3014IDD#PBF
LT3014HVEDD#PBF
LT3014HVIDD#PBF
LEAD BASED FINISH
LT3014ES5
LT3014IS5
LT3014HVES5
LT3014HVIS5
LT3014EDD
LT3014IDD
LT3014HVEDD
LT3014HVIDD
TAPE AND REEL
LT3014ES5#TRPBF
LT3014IS5#TRPBF
LT3014HVES5#TRPBF
LT3014HVIS5#TRPBF
LT3014EDD#TRPBF
LT3014IDD#TRPBF
LT3014HVEDD#TRPBF
LT3014HVIDD#TRPBF
TAPE AND REEL
LT3014ES5#TR
LT3014IS5#TR
LT3014HVES5#TR
LT3014HVIS5#TR
LT3014EDD#TR
LT3014IDD#TR
LT3014HVEDD#TR
LT3014HVIDD#TR
PART MARKING*
LTBMF
LTBMF
LTBRS
LTBRS
LBMG
LBMG
LBRT
LBRT
PART MARKING*
LTBMF
LTBMF
LTBRS
LTBRS
LBMG
LBMG
LBRT
LBRT
PACKAGE DESCRIPTION
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
PACKAGE DESCRIPTION
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–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/
3014fd
2
LT3014
ELECTRICAL CHARACTERISTICS
SYMBOL
Minimum Input Voltage
ADJ Pin Voltage
(Notes 2, 3)
Line Regulation
Load Regulation (Note 2)
Dropout Voltage
V
IN
= V
OUT(NOMINAL)
(Notes 4, 5)
CONDITIONS
I
LOAD
= 20mA
V
IN
= 3.3V, I
LOAD
= 100μA
3.3V < V
IN
< 80V, 100μA < I
LOAD
< 20mA
ΔV
IN
= 3.3V to 80V, I
LOAD
= 100μA (Note 2)
V
IN
= 3.3V,
ΔI
LOAD
= 100μA to 20mA
V
IN
= 3.3V,
ΔI
LOAD
= 100μA to 20mA
I
LOAD
= 100μA
I
LOAD
= 100μA
I
LOAD
= 1mA
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 10mA
I
LOAD
= 20mA
I
LOAD
= 20mA
GND Pin Current
V
IN
= V
OUT(NOMINAL)
(Notes 4, 6)
I
LOAD
= 0mA
I
LOAD
= 100μA
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 20mA
C
OUT
= 0.47μF I
LOAD
= 20mA, BW = 10Hz to 100kHz
,
(Note 7)
V
OUT
= Off to On
V
OUT
= On to Off
V
SHDN
= 0V
V
SHDN
= 6V
V
IN
= 6V, V
SHDN
= 0V
V
IN
= 7V (Avg), V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= 20mA
V
IN
= 7V, V
OUT
= 0V
V
IN
= 3.3V,
ΔV
OUT
= –0.1V (Note 2)
V
IN
= –80V, V
OUT
= 0V
V
OUT
= 1.22V, V
IN
< 1.22V (Note 2)
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
J
= 25°C.
MIN
1.200
1.180
TYP
3
1.220
1.220
1
13
120
200
300
350
7
12
40
250
650
115
4
0.25
1.3
1.3
1
0
1
60
70
70
25
6
2
4
10
2
4
1
4
MAX
3.3
1.240
1.260
10
25
40
180
250
270
360
350
450
410
570
20
30
100
450
1000
UNITS
V
V
V
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
μA
μA
μA
μA
μA
μV
RMS
nA
V
V
μA
μA
μA
dB
mA
mA
mA
μA
Output Voltage Noise
ADJ Pin Bias Current
Shutdown Threshold
SHDN
Pin Current (Note 8)
Quiescent Current in Shutdown
Ripple Rejection
Current Limit
Input Reverse Leakage Current
Reverse Output Current (Note 9)
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
The LT3014 is tested and specified for these conditions with the
ADJ pin connected to the OUT pin.
Note 3:
Operating conditions are limited by maximum junction
temperature. The regulated output voltage specification will not apply
for all possible combinations of input voltage and output current. When
operating at maximum input voltage, the output current range must be
limited. When operating at maximum output current, the input voltage
range must be limited.
Note 4:
To satisfy requirements for minimum input voltage, the LT3014 is
tested and specified for these conditions with an external resistor divider
(249k bottom, 392k top) for an output voltage of 3.3V. The external
resistor divider adds a 5µA DC load on the output.
Note 5:
Dropout voltage is the minimum input to output voltage differential
needed to maintain regulation at a specified output current. In dropout, the
output voltage is equal to (V
IN
– V
DROPOUT
).
Note 6:
GND pin current is tested with V
IN
= V
OUT
(nominal) and a current
source load. This means the device is tested while operating in its dropout
region. This is the worst-case GND pin current. The GND pin current
decreases slightly at higher input voltages.
Note 7:
ADJ pin bias current flows into the ADJ pin.
Note 8:
SHDN
pin current flows out of the
SHDN
pin.
Note 9:
Reverse output current is tested with the IN pin grounded and the
OUT pin forced to the rated output voltage. This current flows into the OUT
pin and out of the GND pin.
Note 10:
The LT3014 is tested and specified under pulse load conditions
such that T
J
≅
T
A
. The LT3014E is 100% tested at T
A
= 25°C. Performance
at –40°C to 125°C is assured by design, characterization, and statistical
3014fd
3
LT3014
ELECTRICAL CHARACTERISTICS
process controls. The LT3014I is guaranteed over the full –40°C to 125°C
operating junction temperature.
Note 11:
This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
目前医疗监护中无法动态掌握患者信息，一旦患者病情恶化，无法在第一时间实施抢救，对数据信息维护效率低。 文中首先阐述了蓝牙技术及其在医疗监护中应用的可行性，然后设计了系统框架，给出了具体功能，BlueTooth Wireless Communication Technology Application in Medical Monitoring包括数据采集和语音报警，最后对蓝牙信号在传输...[详细]
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