LT3032 Series
1
3032ff
For more information www.linear.com/LT3032
TYPICAL APPLICATION
FEATURES DESCRIPTION
Dual 150mA
Positive/Negative Low Noise
Low Dr
opout Linear Regulator
The LT
®
3032 is a dual, low noise, positive and negative low
dropout voltage linear regulator. Each regulator delivers
up to 150mA with a typical 300mV dropout voltage. Each
regulator’s quiescent current is low (30µA operating and
<3µA in shutdown) and well-controlled in dropout, making
it an excellent choice for battery-powered circuits.
Another key feature of the LT3032 is low output noise.
Adding an external 10nF bypass capacitor to each regulator
reduces output noise to 20µV
RMS/
30µV
RMS
over a 10Hz to
100kHz bandwidth. The LT3032 is stable with minimum
output capacitors of 2.2µF. The regulators do not require
the addition of ESR as is common with other regulators.
The regulators are offered as adjustable output devices with
an output voltage down to the ±1.22V reference voltage or
in fixed voltages of ±3.3V, ±5V, ±12V and ±15V. Internal
protection circuitry includes reverse-output protection,
current limiting and thermal limiting.
The LT3032 is available in a unique low profile 14-lead
4mm × 3mm × 0.75mm DFN package with exposed back-
side pads for each regulator, allowing optimum thermal
performance.
Dual Polarity Low Noise 150mA Power Supply
APPLICATIONS
n
Low Noise: 20µV
RMS
(Positive) and
30µV
RMS
(Negative)
n
Low Quiescent Current: 30µA/Channel
n
Wide Input Voltage Range: ±2.3V to ±20V
n
Output Current: ±150mA
n
Low Shutdown Current: <3µA Total (Typical)
n
Low Dropout Voltage: 300mV/Channel
n
Fixed Output Voltages: ±3.3V, ±5V, ±12V, ±15V
n
Adjustable Outputs from ±1.22V to ±20V
n
No Protection Diodes Needed
n
Stable with 2.2µF Output Capacitors
n
Stable with Ceramic, Tantalum or Aluminum Capacitors
n
Starts into Reverse Output Voltage
n
Current Limit and Thermal Limit
n
Low Profile 14-Lead 4mm × 3mm × 0.75mm
DFN Package
n
Battery-Powered Instruments
n
Bipolar Power Supplies
n
Low Noise Power Supplies
L, LT, LTC , LT M , Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Analog Devices, Inc. All other trademarks are the property of their
respective owners.
10µF
10µF
10µF
0.01µF
0.01µF
10µF
5.4V TO
20V
5V OUT AT 150mA
20µV
RMS
NOISE
5V OUT AT –150mA
30µV
RMS
NOISE
5.4V TO
20V
<0.25V = OFF
>2V = ON
SHDNP
SHDNN
OUTPINP
INN
LT3032-5
BYPP
GND
BYPN
OUTN
3032 TA01
OUTP
100µV/DIV
OUTN
100µV/DIV
20µV
RMS
30µV
RMS
1mS/DIV
3032 TA02a
10Hz to 100kHz Output Noise
LT3032 Series
2
3032ff
For more information www.linear.com/LT3032
PIN CONFIGURATIONABSOLUTE MAXIMUM RATINGS
INP Pin Voltage .......................................................±20V
INN Pin Voltage ....................................................... ±20V
OUTP Pin Voltage....................................................±20V
OUTN Pin Voltage (Note 3) .....................................±20V
INP Pin to OUTP Pin Differential Voltage ................±20V
OUTN Pin to INN Pin Differential Voltage
(Note 3) ..........................................................0.5V, 20V
ADJP Pin Voltage ......................................................±7V
ADJN Pin Voltage
(with Respect to INN Pin, Note 3) ..................0.5V, 20V
BYPP Pin Voltage ................................................... ±0.5V
BYPN Pin Voltage
(with Respect to INN Pin) ........................................±20V
SHDNP Pin Voltage .................................................±20V
SHDNN Pin Voltage
(with Respect to INN Pin, Note 3) ..................0.5V, 35V
SHDNN Pin Voltage
(with Respect to GND Pin) ..............................–20V, 15V
Output Short-Circuit Duration .......................... Indefinite
Operating Junction Temperature Range (Note 2)
E, I Grades ......................................... 40°C to 125°C
MP-Grade .......................................... 5C to 125°C
Storage Temperature Range .................. 6C to 150°C
(Note 1)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
INP
NC
SHDNP
BYPN
SHDNN
INN
ADJN/NC
††
OUTP
NC
/ADJP
BYPP
GND
GND
INN
OUTN
TOP VIEW
DE14MA PACKAGE
14-LEAD (4mm × 3mm) PLASTIC DFN
15
GND
16
INN
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 LT3032-3.3/LT3032-5/LT3032-12/LT3032-15, ADJP FOR LT3032
††
PIN 8: NC FOR LT3032-3.3/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 TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3032EDE#PBF LT3032EDE#TRPBF 3032 14-Lead (4mm × 3mm) Plastic DFN 40°C to 125°C
LT3032IDE#PBF LT3032IDE#TRPBF 3032 14-Lead (4mm × 3mm) Plastic DFN 40°C to 125°C
LT3032MPDE#PBF LT3032MPDE#TRPBF 3032 14-Lead (4mm × 3mm) Plastic DFN 55°C to 125°C
LT3032EDE-3.3#PBF LT3032EDE-3.3#TRPBF 03233 14-Lead (4mm × 3mm) Plastic DFN 40°C to 125°C
LT3032IDE-3.3#PBF LT3032IDE-3.3#TRPBF 03233 14-Lead (4mm × 3mm) Plastic DFN 40°C to 125°C
LT3032MPDE-3.3#PBF LT3032MPDE-3.3#TRPBF 03233 14-Lead (4mm × 3mm) Plastic DFN 55°C to 125°C
LT3032EDE-5#PBF LT3032EDE-5#TRPBF 30325 14-Lead (4mm × 3mm) Plastic DFN 40°C to 125°C
LT3032IDE-5#PBF LT3032IDE-5#TRPBF 30325 14-Lead (4mm × 3mm) Plastic DFN 40°C to 125°C
LT3032MPDE-5#PBF LT3032MPDE-5#TRPBF 30325 14-Lead (4mm × 3mm) Plastic DFN 55°C to 125°C
LT3032EDE-12#PBF LT3032EDE-12#TRPBF 30322 14-Lead (4mm × 3mm) Plastic DFN 40°C to 125°C
LT3032IDE-12#PBF LT3032IDE-12#TRPBF 30322 14-Lead (4mm × 3mm) Plastic DFN 40°C to 125°C
LT3032MPDE-12#PBF LT3032MPDE-12#TRPBF 30322 14-Lead (4mm × 3mm) Plastic DFN 55°C to 125°C
http://www.linear.com/product/LT3032#orderinfo
LT3032 Series
3
3032ff
For more information www.linear.com/LT3032
ELECTRICAL CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum INP Operating Voltage LT3032 I
LOAD
= 150mA
l
1.8 2.3 V
Minimum INN Operating Voltage LT3032 I
LOAD
= –150mA
l
–2.3 –1.6 V
Regulated Output Voltage
(Notes 4, 10)
LT3032-3.3
V
INP
= 3.8V, I
LOAD
= 1mA
4.3V ≤ V
INP
≤ 20V, 1mA ≤ I
LOAD
≤ 150mA
l
3.250
3.200
3.300
3.300
3.350
3.400
V
V
LT3032-3.3
V
INN
= –3.8V, I
LOAD
= –1mA
–4.3V ≥ V
INN
≥ –20V, –1mA ≥ I
LOAD
≥ –150mA
l
–3.250
–3.200
–3.300
–3.300
–3.350
–3.400
V
V
LT3032-5
V
INP
= 5.5V, I
LOAD
= 1mA
6V ≤ V
INP
≤ 20V, 1mA ≤ I
LOAD
≤ 150mA
l
4.925
4.850
5.00
5.00
5.075
5.150
V
V
LT3032-5
V
INN
= –5.5V, I
LOAD
= –1mA
–6V ≥ V
INN
≥ –20V, –1mA ≥ I
LOAD
≥ –150mA
l
–5.075
–5.150
–5.00
–5.00
–4.925
–4.850
V
V
LT3032-12
V
INP
= 12.5V, I
LOAD
= 1mA
13V ≤ V
INP
≤ 20V, 1mA ≤ I
LOAD
≤ 150mA
l
11.82
11.64
12.00
12.00
12.18
12.36
V
V
LT3032-12
V
INN
= –12.5V, I
LOAD
= –1mA
–13V ≥ V
INN
≥ –20V, –1mA ≥ I
LOAD
≥ 150mA
l
–12.18
–12.36
–12.00
–12.00
–11.82
–11.64
V
V
LT3032-15
V
INP
= 15.5V, I
LOAD
= 1mA
16V ≤ V
INP
≤ 20V, 1mA ≤ I
LOAD
≤ 150mA
l
14.775
14.550
15.00
15.00
15.225
15.450
V
V
LT3032-15
V
INN
= –15.5V, I
LOAD
= –1mA
–16V ≥ V
INN
≥ –20V, –1mA ≥ I
LOAD
≥ 150mA
l
–15.225
–15.450
–15.00
–15.00
–14.775
–14.550
V
V
ADJP Pin V
oltage
(Notes 4, 5)
LT3032
V
INP
= 2V, I
LOAD
= 1mA
2.3V ≤ V
INP
≤ 20V, 1mA ≤ I
LOAD
≤ 150mA
l
1.202
1.184
1.22
1.22
1.238
1.256
V
V
ADJN Pin Voltage
(Notes 4, 5, 10)
LT3032 V
INN
= –2V, I
LOAD
= –1mA
–2.3V ≤ V
INN
≤ –20V, –1mA ≤ I
LOAD
≤ –150mA
l
–1.238
–1.256
–1.22
–1.22
–1.202
–1.184
V
V
Line Regulation (Note 5) LT3032-3.3 OUTP ΔV
INP
= 3.8V to 20V, I
LOAD
= 1mA
OUTN
ΔV
INN
= –3.8V to –20V, I
LOAD
= –1mA
l
l
1
9
6
30
mV
mV
LT3032-5
OUTP ΔV
INP
= 5.5V to 20V, I
LOAD
= 1mA
OUTN
ΔV
INN
= –5.5V to –20V, I
LOAD
= –1mA
l
l
1
15
6
50
mV
mV
LT3032-12
OUTP ΔV
INP
= 12.5V to 20V, I
LOAD
= 1mA
OUTN
ΔV
INN
= –12.5V to –20V, I
LOAD
= –1mA
l
l
1.5
13
15
75
mV
mV
LT3032-15
OUTP ΔV
INP
= 15.5V to 20V, I
LOAD
= 1mA
OUTN
ΔV
INN
= –15.5V to 20V, I
LOAD
= –1mA
l
l
2
10
20
75
mV
mV
LT3032
ADJP ΔV
INP
= 2V to 20V, I
LOAD
= 1mA
ADJN
ΔV
INN
= –2V to –20V, I
LOAD
= –1mA
l
l
1
1
6
12
mV
mV
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3032EDE-15#PBF LT3032EDE-15#TRPBF 03215 14-Lead (4mm × 3mm) Plastic DFN 40°C to 125°C
LT3032IDE-15#PBF LT3032IDE-15#TRPBF 03215 14-Lead (4mm × 3mm) Plastic DFN 40°C to 125°C
LT3032MPDE-15#PBF LT3032MPDE-15#TRPBF 03215 14-Lead (4mm × 3mm) Plastic DFN 55°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.
Consult LTC Marketing for information on nonstandard lead based finish parts.
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/. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
ORDER INFORMATION

LT3032EDE-3.3#PBF

Mfr. #:
Manufacturer:
Analog Devices / Linear Technology
Description:
LDO Voltage Regulators Dual 200mA Positive/Negative, Low Noise, Low Dropout Linear Regulator
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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