E, I Grades ............................................. –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
DE14MA 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
†
PIN 2: NC FOR LT3032-5/LT3032-12/LT3032-15, ADJP FOR LT3032
††
PIN 8: NC FOR LT3032-5/LT3032-12/LT3032-15, ADJN FOR LT3032
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
LT3032EDE-5#PBF
LT3032IDE-5#PBF
LT3032EDE-12#PBF
LT3032IDE-12#PBF
LT3032EDE-15#PBF
LT3032IDE-15#PBF
TAPE AND REEL
LT3032EDE#TRPBF
LT3032IDE#TRPBF
LT3032EDE-5#TRPBF
LT3032IDE-5#TRPBF
LT3032EDE-12#TRPBF
LT3032IDE-12#TRPBF
LT3032EDE-15#TRPBF
LT3032IDE-15#TRPBF
PART MARKING*
3032
3032
30325
30325
30322
30322
03215
03215
PACKAGE DESCRIPTION
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
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
3032fc
2
LT3032 Series
ORDER INFORMATION
LEAD BASED FINISH
LT3032EDE
LT3032IDE
LT3032EDE-5
LT3032IDE-5
LT3032EDE-12
LT3032IDE-12
LT3032EDE-15
LT3032IDE-15
TAPE AND REEL
LT3032EDE#TR
LT3032IDE#TR
LT3032EDE-5#TR
LT3032IDE-5#TR
LT3032EDE-12#TR
LT3032IDE-12#TR
LT3032EDE-15#TR
LT3032IDE-15#TR
PART MARKING*
3032
3032
30325
30325
30322
30322
03215
03215
PACKAGE DESCRIPTION
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
3mm) Plastic DFN
14-Lead (4mm
×
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
Minimum INP Operating Voltage
Minimum INN Operating Voltage
Regulated Output Voltage
(Notes 4, 10)
LT3032-5
LT3032-5
CONDITIONS
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
MIN
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
TYP
1.8
–1.6
5.00
5.00
–5.00
–5.00
12.00
12.00
–12.00
–12.00
15.00
15.00
–15.00
–15.00
1.22
1.22
–1.22
–1.22
1
15
1.5
13
2
10
1
1
MAX
2.3
5.075
5.150
–4.925
–4.850
12.18
12.36
–11.82
–11.64
15.225
15.450
–14.775
–14.550
1.238
1.256
–1.202
–1.184
6
50
15
75
20
75
6
12
UNITS
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
mV
mV
mV
mV
mV
mV
mV
mV
LT3032 I
LOAD
= 150mA
LT3032 I
LOAD
= –150mA
V
INP
= 5.5V, I
LOAD
= 1mA
6V ≤ V
INP
≤ 20V, 1mA ≤ I
LOAD
≤ 150mA
V
INN
= –5.5V, I
LOAD
= –1mA
–6V ≥ V
INN
≥ –20V, –1mA ≥ I
LOAD
≥ –150mA
–2.3
4.925
4.850
–5.075
–5.150
11.82
11.64
–12.18
–12.36
14.775
14.550
–15.225
–15.450
1.202
1.184
–1.238
–1.256
LT3032-12 V
INP
= 12.5V, I
LOAD
= 1mA
13V ≤ V
INP
≤ 20V, 1mA ≤ I
LOAD
≤ 150mA
LT3032-12 V
INN
= –12.5V, I
LOAD
= –1mA
–13V ≥ V
INN
≥ –20V, –1mA ≥ I
LOAD
≥ 150mA
LT3032-15 V
INP
= 15.5V, I
LOAD
= 1mA
16V ≤ V
INP
≤ 20V, 1mA ≤ I
LOAD
≤ 150mA
LT3032-15 V
INN
= –15.5V, I
LOAD
= –1mA
–16V ≥ V
INN
≥ –20V, –1mA ≥ I
LOAD
≥ 150mA
ADJP Pin Voltage
(Notes 4, 5)
ADJN Pin Voltage
(Notes 4, 5, 10)
Line Regulation (Note 5)
LT3032
LT3032
LT3032-5
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
OUTP
OUTN
ΔV
INP
= 5.5V to 20V, I
LOAD
= 1mA
ΔV
INN
= –5.5V to –20V, I
LOAD
= –1mA
ΔV
INP
= 12.5V to 20V, I
LOAD
= 1mA
ΔV
INN
= –12.5V to –20V, I
LOAD
= –1mA
ΔV
INP
= 15.5V to 20V, I
LOAD
= 1mA
ΔV
INN
= –15.5V to 20V, I
LOAD
= –1mA
ΔV
INP
= 2V to 20V, I
LOAD
= 1mA
ΔV
INN
= –2V to –20V, I
LOAD
= –1mA
LT3032-12 OUTP
OUTN
LT3032-15 OUTP
OUTN
LT3032
ADJP
ADJN
3032fc
3
LT3032 Series
ELECTRICAL CHARACTERISTICS
PARAMETER
Load Regulation (Notes 5, 13)
LT3032-5
LT3032-5
CONDITIONS
OUTP
OUTN
V
INP
= 6V, ΔI
LOAD
= 1mA to 150mA
V
INN
= –6V, ΔI
LOAD
= –1mA to –150mA
V
INP
= 13V, ΔI
LOAD
= 1mA to 150mA
V
INN
= –13V, ΔI
LOAD
= –1mA to –150mA
V
INP
= 16V, ΔI
LOAD
= 1mA to 150mA
V
INN
= –16V, ΔI
LOAD
= –1mA to –150mA
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
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
TYP
–9
15
20
20
25
27
–1.5
1.5
0.09
0.15
0.21
0.27
l
l
MAX
UNITS
mV
mV
mV
mV
mV
mV
LT3032-12 OUTP
LT3032-12 OUTN
LT3032-15 OUTP
LT3032-15 OUTN
LT3032
LT3032
Dropout Voltage
V
INP
= V
OUTP(NOMINAL)
(Notes 6, 7)
ADJP
ADJN
I
LOAD
= 1mA
–7
–15
7
15
0.20
0.27
mV
mV
mV
mV
V
V
V
V
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
0.10
0.15
0.21
0.30
0.20
0.27
V
V
V
V
GND Pin Current
V
INP
= V
OUTP(NOMINAL)
, V
INN
= 0V
(Notes 6, 8, 9)
I
LOAD
= 0mA (LT3032, LT3032-5)
I
LOAD
= 0mA (LT3032-12, LT3032-15)
I
LOAD
= 1mA (LT3032, LT3032-5)
I
LOAD
= 1mA (LT3032-12, LT3032-15)
I
LOAD
= 10mA
I
LOAD
= 50mA
I
LOAD
= 150mA
I
LOAD
= 0mA (LT3032, LT3032-5)
I
LOAD
= 0mA (LT3032-12, LT3032-15)
I
LOAD
= –1mA (LT3032, LT3032-5)
I
LOAD
= –1mA (LT3032-12, LT3032-15)
I
LOAD
= –10mA
I
LOAD
= –50mA
I
LOAD
= –150mA
LT3032
LT3032
(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
–25
–50
–70
–80
–350
–1.3
–4
30
50
85
90
300
0.75
2
30
–30
–65
–120
–120
180
–500
–1.8
–7
70
130
180
180
600
1.5
5
100
–100
2
2
–0.25
1
4
1
15
–9
8
–10
20
μA
μA
μA
μA
μA
mA
mA
μA
μA
μA
μA
μA
mA
mA
nA
nA
V
V
V
V
V
V
μA
μA
μA
μA
μA
μA
μA
μA
3032fc
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
l
l
l
l
l
l
0.25
–2.8
0.25
–1
0.7
0.6
1.4
–1.9
1.4
–1.9
1
SHDNP
Pin Current (Note 9)
SHDNN
Pin Current
(Note 9)
Quiescent Current in Shutdown
V
SHDNP
= 0V
V
SHDNP
= 20V
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 (LT3032, LT3032-5)
V
INN
= V
OUT(NOMINAL)
–1V, V
SHDNN
=
0V, V
INP
= 0V
(LT3032-12/ LT3032-15)
l
l
l
–1
6
–3
0.1
–3
10
4
LT3032 Series
ELECTRICAL CHARACTERISTICS
PARAMETER
Output Voltage Noise (10Hz to 100kHz)
Ripple Rejection
V
RIPPLE
= 0.5V
P-P,
f
RIPPLE
= 120Hz
Current Limit (Note 12)
CONDITIONS
,
,
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 or V
OUTP(NOMINAL)
+ 1V, ΔV
OUTP
= –0.1V
V
INN
= –2.3V or V
OUTP(NOMINAL)
– 1V, ΔV
OUTN
= 0.1V
V
INP
= –20V, V
OUTP
= 0V
V
INN
= 20V, V
OUTN
, V
ADJN
, V
SHDNN
= Open Circuit
LT3032-5
LT3032-12
LT3032-15
LT3032
V
OUTP
= 5V, V
INP
< 5V
V
OUTP
= 12V, V
INP
< 12V
V
OUTP
= 15V, V
INP
< 15V
V
OUTP
= V
ADJP
= 1.22V, V
INP
< 1.22V
50
46
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
MIN
TYP
20
30
68
54
400
350
170
170
–1
1
10
25
25
5
20
50
50
10
MAX
UNITS
μV
RMS
μV
RMS
dB
dB
mA
mA
mA
mA
mA
mA
μA
μA
μA
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. The LT3032-12/LT3032-15 have higher internal
resistor divider current, resulting in higher GND pin current at light/no load.
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 the nominal output voltage. This current flows into
the OUTP pin and out the GND pin.
Note 12:
Positive side current limit is tested at V
INP
= 2.3V or
V
OUTP(NOMINAL)
+ 1V (whichever is more positive). Negative side current
limit is tested at V
INN
= –2.3V or V
OUTN(NOMINAL)
– 1V (whichever is more
negative).
Note 13:
LTC is unable to guarantee load regulation specifications on
fixed voltage versions of the LT3032 due to production test limitations
with Kelvin-Sensing the package pins. Please consult the Typical
Performance Characteristics for curves of Load Regulation as a function of
1. Introduction
Electronic scales are gradually replacing traditional measuring tools like springs and balances in everyday life, such as electronic price computing scales and electronic weigh...[详细]
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