EXPOSED PAD (PIN 9) IS IN, MUST BE SOLDERED TO PCB
LT1964-BYP
TOP VIEW
GND 1
IN 2
BYP 3
4 ADJ
5 OUT
LT1964-5
TOP VIEW
GND 1
IN 2
BYP 3
4
SHDN
5 OUT
S5 PACKAGE
5-LEAD PLASTIC SOT-23
T
JMAX
= 150°C,
θ
JA
≈125°C/W to 250°C/W
(NOTE 13)
SEE THE APPLICATIONS INFORMATION SECTION
S5 PACKAGE
5-LEAD PLASTIC SOT-23
T
JMAX
= 150°C,
θ
JA
≈125°C/W to 250°C/W
(NOTE 13)
SEE THE APPLICATIONS INFORMATION SECTION
ORDER INFORMATION
LEAD FREE FINISH
LT1964ES5-SD#PBF
LT1964ES5-BYP#PBF
LT1964ES5-5#PBF
LT1964EDD#PBF
LT1964IS5-SD#PBF
LT1964IS5-BYP#PBF
LT1964IS5-5#PBF
LT1964IDD#PBF
TAPE AND REEL
LT1964ES5-SD#TRPBF
LT1964ES5-BYP#TRPBF
LT1964ES5-5#TRPBF
LT1964EDD#TRPBF
LT1964IS5-SD#TRPBF
LT1964IS5-BYP#TRPBF
LT1964IS5-5#TRPBF
LT1964IDD#TRPBF
PART MARKING*
LTVX
LTVY
LTVZ
LDVM
LTVX
LTVY
LTVZ
LDVM
PACKAGE DESCRIPTION
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
8-Lead (3mm
×
3mm) Plastic DFN
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
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
1964fb
2
LT1964
ORDER INFORMATION
LEAD BASED FINISH
LT1964ES5-SD
LT1964ES5-BYP
LT1964ES5-5
LT1964EDD
LT1964IS5-SD
LT1964IS5-BYP
LT1964IS5-5
LT1964IDD
TAPE AND REEL
LT1964ES5-SD#TR
LT1964ES5-BYP#TR
LT1964ES5-5#TR
LT1964EDD#TR
LT1964IS5-SD#TR
LT1964IS5-BYP#TR
LT1964IS5-5#TR
LT1964IDD#TR
PART MARKING*
LTVX
LTVY
LTVZ
LDVM
LTVX
LTVY
LTVZ
LDVM
PACKAGE DESCRIPTION
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
8-Lead (3mm
×
3mm) Plastic DFN
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
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
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/
ELECTRICAL CHARACTERISTICS
PARAMETER
Regulated Output Voltage
(Notes 3, 9)
ADJ Pin Voltage
(Notes 2, 3, 9)
Line Regulation
Load Regulation
CONDITIONS
LT1964-5
LT1964
LT1964-5
LT1964 (Note 2)
LT1964-5
LT1964
Dropout Voltage
V
IN
= V
OUT(NOMINAL)
(Notes 4, 5)
I
LOAD
= –1mA
I
LOAD
= –1mA
I
LOAD
= –10mA
I
LOAD
= –10mA
I
LOAD
= –100mA
I
LOAD
= –100mA
I
LOAD
= –200mA
I
LOAD
= –200mA
GND Pin Current
V
IN
= V
OUT(NOMINAL)
(Notes 4, 6)
I
LOAD
= 0mA
I
LOAD
= –1mA
I
LOAD
= –10mA
I
LOAD
= –100mA
I
LOAD
= –200mA
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
MIN
V
IN
= –5.5V, I
LOAD
= –1mA
–20V < V
IN
< –6V, –200mA < I
LOAD
< –1mA
V
IN
= –2V, I
LOAD
= –1mA
–20V < V
IN
< –2.8V, –200mA < I
LOAD
< –1mA
ΔV
IN
= –5.5V to –20V, I
LOAD
= –1mA
ΔV
IN
= –2.8V to –20V, I
LOAD
= –1mA
V
IN
= –6V, ΔI
LOAD
= –1mA to –200mA
V
IN
= –6V, ΔI
LOAD
= –1mA to –200mA
V
IN
= –2.8V, ΔI
LOAD
= –1mA to –200mA
V
IN
= –2.8V, ΔI
LOAD
= –1mA to –200mA
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
TYP
–5
–5
–1.22
–1.22
15
1
15
2
0.1
0.15
0.26
0.34
30
85
300
1.3
2.5
MAX
–5.075
–5.150
–1.238
–1.256
50
12
35
50
7
15
0.15
0.19
0.20
0.25
0.33
0.39
0.42
0.49
70
180
600
3
6
UNITS
V
V
V
V
mV
mV
mV
mV
mV
mV
V
V
V
V
V
V
V
V
μA
μA
μA
mA
mA
–4.925
–4.850
–1.202
–1.184
1964fb
3
LT1964
ELECTRICAL CHARACTERISTICS
Output Voltage Noise
ADJ Pin Bias Current
Minimum Input Voltage (Note 12)
I
LOAD
= –200mA
Shutdown Threshold
(Notes 2, 7)
LT1964-BYP
LT1964-SD
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, V
SHDN
= 0V
V
IN
– V
OUT
= –1.5V(Avg), V
RIPPLE
= 0.5V
P-P
,
f
RIPPLE
= 120Hz, I
LOAD
= –200mA
V
IN
= –6V, V
OUT
= 0V
V
IN
= V
OUT(NOMINAL)
–1.5V, ΔV
OUT
= 0.1V
V
IN
= 20V, V
OUT
, V
ADJ
, V
SHDN
= Open Circuit
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
A
= 25°C.
C
OUT
= 10μF C
BYP
= 0.01μF I
LOAD
= –200mA, BW = 10Hz to 100kHz
,
,
30
30
–1.9
–1.6
1.6
–1.9
0.8
–0.8
±0.1
6
–3
3
46
54
350
220
1
100
–2.8
–2.2
2.1
–2.8
μV
RMS
nA
V
V
V
V
V
V
μA
μA
μA
μA
dB
mA
mA
mA
0.25
–0.25
–1
SHDN
Pin Current (Note 8)
1
15
–9
10
Quiescent Current in Shutdown
Ripple Rejection
Current Limit
Input Reverse Leakage Current
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 LT1964 (adjustable version) 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 LT1964
(adjustable version) is tested and specified for these conditions with an
external resistor divider (two 249k resistors) for an output voltage of
–2.44V. The external resistor divider will add 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 will be 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 will
decrease slightly at higher input voltages.
Note 7:
ADJ pin bias current flows out of the ADJ pin.
Note 8:
Positive
SHDN
pin current flows into the
SHDN
pin.
SHDN
pin
current is included in the GND pin current specification.
Note 9:
For input-to-output differential voltages greater than 7V, a 50μA
load is needed to maintain regulation.
Note 10:
The LT1964 is tested and specified under pulse load conditions
such that T
J
≅
T
A
. The LT1964E is tested at T
A
= 25°C. Performance at
–40°C to 125°C is assured by design, characterization and correlation with
statistical process controls. The LT1964I is guaranteed over the full –40°C
to 125°C operating junction temperature range.
Note 11:
A parasitic diode exists internally on the LT1964 between the
OUT, ADJ and
SHDN
pins and the IN pin. The OUT, ADJ and
SHDN
pins
cannot be pulled more than 0.5V more negative than the IN pin during
fault conditions, and must remain at a voltage more positive than the IN
pin during operation.
Note 12:
For the LT1964-BYP this specification accounts for the operating
,
threshold of the
SHDN
pin, which is tied to the IN pin internally. For the
LT1964-SD, the
SHDN
threshold must be met to ensure device operation.
Note 13:
Actual thermal resistance (θ
JA
) junction to ambient will be a
function of board layout. See the Thermal Considerations section in the
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PCB Design
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