E, I Grades ............................................. –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
DEMA PACKAGE
14-LEAD (4mm 3mm) PLASTIC DFN
T
JMAX
= 125°C,
θ
JA
= 30°C/W TO 43°C/W*,
θ
JC
= 10°C/W*
*SEE APPLICATIONS INFORMATION FOR MORE DETAIL
EXPOSED PAD (PIN 15) IS GND, MUST BE SOLDERED TO PINS 4, 5 ON PCB
EXPOSED PAD (PIN 16) IS INN, MUST BE SOLDERED TO PINS 6, 9 ON PCB
ORDER INFORMATION
LEAD FREE FINISH
LT3032EDE#PBF
LT3032IDE#PBF
LEAD BASED FINISH
LT3032EDE
LT3032IDE
TAPE AND REEL
LT3032EDE#TRPBF
LT3032IDE#TRPBF
TAPE AND REEL
LT3032EDE#TR
LT3032IDE#TR
PART MARKING*
3032
3032
PART MARKING*
3032
3032
PACKAGE DESCRIPTION
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
PACKAGE DESCRIPTION
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
TEMPERATURE RANGE
–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/
3032f
2
LT3032
ELECTRICAL CHARACTERISTICS
PARAMETER
Minimum INP Operating Voltage
Minimum INN Operating Voltage
ADJP Pin Voltage
(Notes 4, 5)
ADJN Pin Voltage
(Notes 4, 5, 10)
Line Regulation
(Note 5)
Load Regulation
(Note 5)
CONDITIONS
I
LOAD
= 150mA
I
LOAD
= –150mA
V
INP
= 2V, I
LOAD
= 1mA
2.3V ≤ V
INP
≤ 20V, 1mA ≤ I
LOAD
≤ 150mA
V
INN
= –2V, I
LOAD
= –1mA
–2.3V ≤ V
INN
≤ –20V, –1mA ≤ I
LOAD
≤ –150mA
ADJP
ADJN
ADJP
ADJN
Dropout Voltage
V
INP
= V
OUTP(NOMINAL)
(Notes 6, 7)
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 50mA
I
LOAD
= 150mA
Dropout Voltage
V
INN
= V
OUTN(NOMINAL)
(Notes 6, 7)
I
LOAD
= –1mA
I
LOAD
= –10mA
I
LOAD
= –50mA
I
LOAD
= –150mA
GND Pin Current
V
INP
= V
OUTP(NOMINAL)
, V
INN
= 0V
(Notes 6, 8, 9)
I
LOAD
= 0mA
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 50mA
I
LOAD
= 150mA
I
LOAD
= 0mA
I
LOAD
= –1mA
I
LOAD
= –10mA
I
LOAD
= –50mA
I
LOAD
= –150mA
(Notes 5, 9)
(Notes 5, 9)
SHDNP
SHDNP
SHDNN
SHDNN
SHDNN
SHDNN
V
OUTP
= Off to On
V
OUTP
= On to Off
V
OUTN
= Off to On (Positive)
V
OUTN
= Off to On (Negative)
V
OUTN
= On to Off (Positive)
V
OUTN
= On to Off (Negative)
l
l
l
l
l
l
l
l
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
A
= 25°C.
MIN
–2.3
1.202
1.184
–1.238
–1.256
TYP
1.8
–1.6
1.22
1.22
–1.22
–1.22
1
1
–1.5
1.5
0.09
0.15
0.21
0.27
0.10
0.15
0.21
0.30
–25
–70
–350
–1.3
–4
30
85
300
0.75
2
30
–30
0.25
–2.8
0.25
–1
1
0.7
0.6
1.4
–1.9
1.4
–1.9
–65
–120
–500
–1.8
–7
70
180
600
1.5
5
100
–100
2
2
–0.25
1
4
0.20
0.27
1.238
1.256
–1.202
–1.184
6
12
–7
–15
7
15
0.20
0.27
MAX
2.3
UNITS
V
V
V
V
V
V
mV
mV
mV
mV
mV
mV
V
V
V
V
V
V
V
V
μA
μA
μA
mA
mA
μA
μA
μA
mA
mA
nA
nA
V
V
V
V
V
V
μA
μA
ΔV
INP
= 2V to 20V, I
LOAD
= 1mA
ΔV
INN
= –2V to –20V, I
LOAD
= –1mA
V
INP
= 2.3V, ΔI
LOAD
= 1mA to 150mA
V
INP
= 2.3V, ΔI
LOAD
= 1mA to 150mA
V
INN
= –2.3V, ΔI
LOAD
= –1mA to 150mA
V
INN
= –2.3V, ΔI
LOAD
= –1mA to 150mA
GND Pin Current
V
INN
= V
OUTN(NOMINAL)
, V
INP
= 0V
(Notes 6, 8, 9, 10)
ADJP Pin Bias Current
ADJN Pin Bias Current
Shutdown Threshold
SHDNP
Pin Current
(Note 9)
V
SHDNP
= 0V
V
SHDNP
= 20V
3032f
3
LT3032
ELECTRICAL CHARACTERISTICS
PARAMETER
SHDNN
Pin Current
(Note 9)
Quiescent Current in Shutdown
Output Voltage Noise (10Hz to 100kHz)
Ripple Rejection
V
RIPPLE
= 0.5V
P-P,
f
RIPPLE
= 120Hz
Current Limit
CONDITIONS
V
SHDNN
= 0V
V
SHDNN
= 15V
V
SHDNN
= -15V
V
INP
= 6V, V
SHDNP
= 0V, V
INN
= 0V
V
INN
= –6V, V
SHDNN
= 0V, V
INP
= 0V
C
OUTP
= 10μF, C
BYPP
= 0.01μF, I
LOAD
= 150mA
C
OUTN
= 10μF, C
BYPN
= 0.01μF, I
LOAD
= –150mA
V
INP
to V
OUTP
= 1.5V (Average), I
LOAD
= 100mA
V
INN
to V
OUTN
= –1.5V (Average), I
LOAD
= –100mA
V
INP
= 7V, V
OUTP
= 0V
V
INN
= –7V, V
OUTN
= 0V
V
INP
= 2.3V, ΔV
OUTP
= –0.1V
V
INN
= –2.3V, ΔV
OUTN
= 0.1V
V
INP
= –20V, V
OUTP
= 0V
V
INN
= 20V, V
OUTN
, V
ADJN
, V
SHDNN
= Open Circuit
V
OUTP
= V
ADJP
= 1.22V, V
INP
< 1.22V
50
46
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
MIN
–1
6
–3
0.1
–3
20
30
68
60
400
350
170
170
–1
1
5
10
TYP
MAX
1
15
–9
8
–10
UNITS
μA
μA
μA
μA
μA
μV
RMS
μV
RMS
dB
dB
mA
mA
mA
mA
mA
mA
μA
l
l
l
l
INP Reverse Leakage Current
INN Reverse Leakage Current
Reverse Output Current (Notes 5, 11)
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 LT3032 is tested and specified under pulse load conditions
such that T
J
≅
T
A
. The LT3032E is 100% tested at T
A
= 25°C. Performance
of the LT3032E over the full –40°C to 125°C operating junction
temperature range is assured by design, characterization, and correlation
with statistical process controls. The LT3032I regulators are guaranteed
over the full –40°C to 125°C operating junction temperature range.
Note 3.
Parasitic diodes exist internally between the INN pin and the
OUTN, ADJN, and
SHDNN
pins. These pins cannot be pulled more than
0.5V below the INN pin during fault conditions, and must remain at a
voltage more positive than the INN pin during operation.
Note 4.
Operating conditions are limited by maximum junction
temperature. Specifications do not apply for all possible combinations of
input voltages and output currents. When operating at maximum input
voltages, the output current ranges must be limited. When operating at
maximum output currents, the input voltage ranges must be limited.
Note 5.
The LT3032 is tested and specified for these conditions with the
ADJP pin tied to the OUTP pin and the ADJN pin tied to the OUTN pin.
Note 6.
To satisfy requirements for minimum input voltage, the LT3032 is
tested and specified for these conditions with an external resistor divider
(two 250k resistors) from OUTP/OUTN to the corresponding ADJP/ADJN
pin to give an output voltage of ±2.44V. The external resistor divider adds a
5μA DC load on the output.
Note 7.
Dropout voltage is the minimum input-to-output voltage
differential needed to maintain regulation at a specified output current. In
dropout, output voltage equals:
V
INP/INN
– V
DROPOUT
For lower output voltages, dropout voltage is limited by the minimum
input voltage specification under some output voltage/load conditions;
see curves for Minimum INN Voltage and Minimum INP Voltage in Typical
Performance Characteristics. LTC is unable to guarantee Maximum
Dropout Voltage specifications at 50mA and 150mA due to production
test limitations with Kelvin-Sensing the package pins. Please consult the
Typical Performance Characteristics for curves of Dropout Voltage as a
function of Output Load Current and Temperature.
Note 8.
GND pin current is tested with V
INP
= V
OUTP(NOMINAL)
or V
INN
=
V
OUTN(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. GND pin current decreases slightly at higher input voltages.
Note 9.
Positive current flow is into the pin. Negative current flow is out of
the pin.
Note 10.
For input-to-output differential voltages from INN to OUTN
greater than –7V, a –50μA load is needed to maintain regulation.
Note 11.
Reverse output current is tested with the INP pin grounded and
the OUTP pin forced to 1.22V. This current flows into the ADJP and OUTP
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