Q, T Packages ................................................... 250°C
PIN CONFIGURATION
TOP VIEW
IN
IN
SHDN
GND
1
2
3
4
9
IN
8 OUT
7 OUT
6 ADJ
5 GND
IN
IN
IN
IN
SHDN
GND
1
2
3
4
5
6
TOP VIEW
12
11
10
9
8
7
OUT
OUT
OUT
OUT
ADJ
GND
13
IN
DD PACKAGE
8-LEAD (3mm 3mm) PLASTIC DFN
T
JMAX
= 125°C,
θ
JA
= 40°C/W,
θ
JC
= 7.5°C/W
EXPOSED PAD (PIN 9) IS IN, MUST BE SOLDERED TO PCB
FRONT VIEW
5
4
TAB IS IN
3
2
1
Q PACKAGE
5-LEAD PLASTIC DD-PAK
T
JMAX
= 125°C,
θ
JA
= 14°C/W,
θ
JC
= 3°C/W
OUT
ADJ
IN
GND
SHDN
MSE PACKAGE
12-LEAD PLASTIC MSOP
T
JMAX
= 125°C,
θ
JA
= 37°C/W,
θ
JC
= 10°C/W
EXPOSED PAD (PIN 13) IS IN, MUST BE SOLDERED TO PCB
FRONT VIEW
5
4
TAB IS IN
3
2
1
T PACKAGE
5-LEAD PLASTIC TO-220
T
JMAX
= 125°C,
θ
JA
= 50°C/W,
θ
JC
= 3°C/W
OUT
ADJ
IN
GND
SHDN
3015f
2
LT3015
ORDER INFORMATION
LEAD FREE FINISH
LT3015EDD#PBF
LT3015IDD#PBF
LT3015EMSE#PBF
LT3015IMSE#PBF
LT3015MPMSE#PBF
LT3015EQ#PBF
LT3015IQ#PBF
LT3015MPQ#PBF
LT3015ET#PBF
LT3015IT#PBF
LEAD BASED FINISH
LT3015EDD
LT3015IDD
LT3015EMSE
LT3015IMSE
LT3015MPMSE
LT3015EQ
LT3015IQ
LT3015MPQ
LT3015ET
LT3015IT
TAPE AND REEL
LT3015EDD#TRPBF
LT3015IDD#TRPBF
LT3015EMSE#TRPBF
LT3015IMSE#TRPBF
LT3015MPMSE#TRPBF
LT3015EQ#TRPBF
LT3015IQ#TRPBF
LT3015MPQ#TRPBF
LT3015ET#TRPBF
LT3015IT#TRPBF
TAPE AND REEL
LT3015EDD#TR
LT3015IDD#TR
LT3015EMSE#TR
LT3015IMSE#TR
LT3015MPMSE#TR
LT3015EQ#TR
LT3015IQ#TR
LT3015MPQ#TR
LT3015ET#TR
LT3015IT#TR
PART MARKING*
LFXS
LFXS
3015
3015
3015
LT3015Q
LT3015Q
LT3015Q
LT3015T
LT3015T
PART MARKING*
LFXS
LFXS
3015
3015
3015
LT3015Q
LT3015Q
LT3015Q
LT3015T
LT3015T
PACKAGE DESCRIPTION
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
12-Lead Plastic MSOP
12-Lead Plastic MSOP
12-Lead Plastic MSOP
5-Lead Plastic DD-Pak
5-Lead Plastic DD-Pak
5-Lead Plastic DD-Pak
5-Lead Plastic TO-220
5-Lead Plastic TO-220
PACKAGE DESCRIPTION
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
12-Lead Plastic MSOP
12-Lead Plastic MSOP
12-Lead Plastic MSOP
5-Lead Plastic DD-Pak
5-Lead Plastic DD-Pak
5-Lead Plastic DD-Pak
5-Lead Plastic TO-220
5-Lead Plastic TO-220
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–40°C to 125°C
–40°C to 125°C
–55°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
–55°C to 125°C
–40°C to 125°C
–40°C to 125°C
–55°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/
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
PARAMETER
CONDITIONS
l
l
l
l
ELECTRICAL CHARACTERISTICS
MIN
TYP
–1.75
–1.8
MAX
–2.3
–1.232
–1.244
6
3.8
9
UNITS
V
V
V
mV
mV
mV
Minimum IN Pin Voltage (Note 11) I
LOAD
= –0.5A
I
LOAD
= –1.5A
ADJ Pin Voltage (Notes 2, 3)
Line Regulation (Note 2)
Load Regulation (Note 2)
V
IN
= –2.3V, I
LOAD
= –1mA
–30V < V
IN
< –2.3V, –1.5A < I
LOAD
< –1mA
ΔV
IN
= –2.3V to –30V, I
LOAD
= –1mA
V
IN
= –2.3V, ΔI
LOAD
= –1mA to –1.5A
V
IN
= –2.3V, ΔI
LOAD
= –1mA to –1.5A
–1.208
–1.196
–1.22
–1.22
2.5
2
3015f
3
LT3015
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
PARAMETER
Dropout Voltage
V
IN
= V
OUT(NOMINAL)
(Notes 4, 5)
CONDITIONS
I
LOAD
= –1mA
I
LOAD
= –1mA
I
LOAD
= –100mA
I
LOAD
= –100mA
I
LOAD
= –500mA (DFN/MSOP)
I
LOAD
= –500mA (DFN/MSOP)
I
LOAD
= –500mA (DD-PAK/TO-220)
I
LOAD
= –500mA (DD-PAK/TO-220)
I
LOAD
= –1.5A (DFN/MSOP)
I
LOAD
= –1.5A (DFN/MSOP)
I
LOAD
= –1.5A (DD-PAK/TO-220)
I
LOAD
= –1.5A (DD-PAK/TO-220)
I
LOAD
= 0mA
I
LOAD
= –1mA
I
LOAD
= –100mA
I
LOAD
= –500mA
I
LOAD
= –1.5A
C
OUT
= 10μF I
LOAD
= –1.5A, BW = 10Hz to 100kHz
,
V
IN
= –2.3V
V
OUT
= Off-to-On (Positive)
V
OUT
= Off-to-On (Negative)
V
OUT
= On-to-Off (Positive)
V
OUT
= On-to-Off (Negative)
V
SHDN
= 0V
V
SHDN
= 15V
V
SHDN
= –15V
V
IN
= –6V,
SHDN
= 0V
V
IN
- V
OUT
= –1.5V (Avg), V
RIPPLE
= 0.5V
P-P
f
RIPPLE
= 120Hz, I
LOAD
= –1.5A
V
IN
= –2.3V, V
OUT
= 0V
V
IN
= –2.3V, ΔV
OUT
= 0.1V
V
IN
= 30V, V
OUT
, V
ADJ
, V
SHDN
= Open Circuit
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
ELECTRICAL CHARACTERISTICS
MIN
TYP
0.055
0.1
0.17
0.2
0.31
0.41
1.1
1.15
2.9
9.5
35
60
MAX
0.095
0.16
0.16
0.24
0.23
0.32
0.27
0.39
0.39
0.5
0.51
0.68
2.4
2.5
7.0
23
70
200
1.35
–1.06
–0.5
10
27
–4.5
6
UNITS
V
V
V
V
V
V
V
V
V
V
V
V
mA
mA
mA
mA
mA
μV
RMS
nA
V
V
V
V
μA
μA
μA
μA
dB
GND Pin Current
V
IN
= V
OUT(NOMINAL)
(Notes 4, 6)
Output Voltage Noise
ADJ Pin Bias Current
(Notes 2, 7)
Shutdown Threshold (Note 11)
–200
1.07
–1.34
0.5
–1.0
30
1.21
–1.20
0.73
–0.73
0
17
–2.8
0.01
65
2.0
1.95
1.55
SHDN
Pin Current (Note 8)
Quiescent Current in Shutdown
Ripple Rejection
Current Limit
Input Reverse Leakage Current
55
1.8
1.75
2.2
2.15
1.7
A
A
mA
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 LT3015 is tested and specified for these conditions with the
ADJ pin connected to the OUT pin.
Note 3.
Maximum junction temperature limits operating conditions. The
regulated output voltage specification does not apply for all possible
combinations of input voltage and output current. If operating at maximum
output current, limit the input voltage range. If operating at maximum
input voltage, limit the output current range.
Note 4.
To satisfy minimum input voltage requirements, the LT3015 is
tested and specified for these conditions with an external resistor divider
(54.9k top, 49.9k bottom) for an output voltage of –2.56V. The external
resistor adds 25μA of 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: V
IN
+ V
DROPOUT
.
Note 6.
GND pin current is tested with V
IN
= V
OUT(NOMINAL)
and a current
source load. Therefore, the device is tested while operating in dropout.
This is the worst-case GND pin current. GND pin current decreases slightly
at higher input voltages.
Note 7.
Positive ADJ pin bias current flows into the ADJ pin.
Note 8.
Positive
SHDN
pin current flows into the
SHDN
pin.
Note 9.
The LT3015 is tested and specified under pulsed load conditions
such that T
J
≅
T
A
. The LT3015E is guaranteed to meet performance
specifications from 0°C to 125°C junction temperature. Specifications over
the –40°C to 125°C operating temperature range are assured by design,
characterization, and correlation with statistical process controls. The
LT3015I is guaranteed over the full –40°C to 125°C operating junction
temperature range. The LT3015MP is 100% tested and guaranteed over
the full –55°C to 125°C operating junction temperature range.
Note 10.
Parasitic diodes exist internally between the OUT, ADJ,
SHDN
pins
and the IN pin. Do not drive the OUT, ADJ, and
SHDN
pins more that 0.3V
below the IN pin during fault conditions, and these pins must remain at a
voltage more positive than IN during normal operation.
据国外媒体报道，英特尔将处理器价格最高下调31%，但降价整体来说是有限的。 根据英特尔7月20日的新定价单来看，Core 2 Duo E8500(3.16GHz)价格降幅最高，从266美元下调至183美元，降幅达31%；Core 2 Duo E7200 (2.53GHz)次之，从133美元下调至113美元，降幅15%。 其他降价处理器还有四核Q6600(2.4GHz)，从224美...[详细]
Microchip MCU
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