LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Regulator; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C
LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Regulator; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C
(Notes 2, 3) ............................................– 40°C to 125°C
Storage Temperature Range
DH .....................................................– 65°C to 125°C
S8 ......................................................– 65°C to 150°C
Lead Temperature (Soldering, 10 sec, S8) ............ 300°C
PIN CONFIGURATION
TOP VIEW
NC
NC
OUT
OUT
NC
NC
ADJ
AGND
1
2
3
4
5
6
7
8
17
16 NC
15 NC
14 IN
13 NC
12 IN
11 NC
10 PGND
9
SHDN
NC
NC
OUT
OUT
NC
NC
SENSE
AGND
1
2
3
4
5
6
7
8
17
TOP VIEW
16 NC
15 NC
14 IN
13 NC
12 IN
11 NC
10 PGND
9
SHDN
LT3021-ADJ
DH PACKAGE
16-LEAD (5mm
×
5mm) PLASTIC DFN
T
JMAX
= 125°C,
θ
JA
= 35°C/ W*,
θ
JC
= 3°C/W**
EXPOSED PAD IS GND (PIN 17) CONNECT TO PINS 8, 10
EXPOSED PAD MUST BE SOLDERED TO THE PCB
*SEE THE APPLICATIONS INFORMATION SECTION
**MEASURED JUNCTION TO PIN 17
TOP VIEW
NC 1
OUT 2
ADJ 3
AGND 4
8
7
6
5
IN
NC
PGND
SHDN
LT3021-FIXED
DH PACKAGE
16-LEAD (5mm
×
5mm) PLASTIC DFN
T
JMAX
= 125°C,
θ
JA
= 35°C/ W*,
θ
JC
= 3°C/W**
EXPOSED PAD IS GND (PIN 17) CONNECT TO PINS 8, 10
EXPOSED PAD MUST BE SOLDERED TO THE PCB
*SEE THE APPLICATIONS INFORMATION SECTION
**MEASURED JUNCTION TO PIN 17
TOP VIEW
NC 1
OUT 2
SENSE 3
AGND 4
8
7
6
5
IN
NC
PGND
SHDN
LT3021-ADJ
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 125°C/ W*,
θ
JC
= 40°C/W**
*SEE THE APPLICATIONS INFORMATION SECTION
**MEASURED JUNCTION TO PIN 6
LT3021-FIXED
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 125°C/ W*,
θ
JC
= 40°C/W**
*SEE THE APPLICATIONS INFORMATION SECTION
**MEASURED JUNCTION TO PIN 6
3021fc
2
LT3021/LT3021-1.2/
LT3021-1.5/LT3021-1.8
ORDER INFORMAITON
LEAD FREE FINISH
LT3021EDH#PBF
LT3021EDH-1.2#PBF
LT3021EDH-1.5#PBF
LT3021EDH-1.8#PBF
LT3021ES8#PBF
LT3021ES8-1.2#PBF
LT3021ES8-1.5#PBF
LT3021ES8-1.8#PBF
LT3021IS8-1.8#PBF
LEAD BASED FINISH
LT3021EDH
LT3021EDH-1.2
LT3021EDH-1.5
LT3021EDH-1.8
LT3021ES8
LT3021ES8-1.2
LT3021ES8-1.5
LT3021ES8-1.8
LT3021IS8-1.8
TAPE AND REEL
LT3021EDH#TRPBF
LT3021EDH-1.2#TRPBF
LT3021EDH-1.5#TRPBF
LT3021EDH-1.8#TRPBF
LT3021ES8#TRPBF
LT3021ES8-1.2#TRPBF
LT3021ES8-1.5#TRPBF
LT3021ES8-1.8#TRPBF
LT3021IS8-1.8#TRPBF
TAPE AND REEL
LT3021EDH#TR
LT3021EDH-1.2#TR
LT3021EDH-1.5#TR
LT3021EDH-1.8#TR
LT3021ES8#TR
LT3021ES8-1.2#TR
LT3021ES8-1.5#TR
LT3021ES8-1.8#TR
LT3021IS8-1.8#TR
PART MARKING*
3021
302112
302115
302118
3021
302112
302115
302118
302118
PART MARKING*
3021
302112
302115
302118
3021
302112
302115
302118
302118
PACKAGE DESCRIPTION
16-Lead (5mm
×
5mm) Plastic DFN
16-Lead (5mm
×
5mm) Plastic DFN
16-Lead (5mm
×
5mm) Plastic DFN
16-Lead (5mm
×
5mm) Plastic DFN
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
PACKAGE DESCRIPTION
16-Lead (5mm
×
5mm) Plastic DFN
16-Lead (5mm
×
5mm) Plastic DFN
16-Lead (5mm
×
5mm) Plastic DFN
16-Lead (5mm
×
5mm) Plastic DFN
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
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
–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
–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/
3021fc
3
LT3021/LT3021-1.2/
LT3021-1.5/LT3021-1.8
ELECTRICAL CHARACTERISTICS
SYMBOL
Minimum Input Voltage
(Notes 5,14)
ADJ Pin Voltage (Notes 4, 5)
Regulated Output Voltage
(Note 4)
CONDITIONS
I
LOAD
= 500mA, T
J
> 0°C
I
LOAD
= 500mA, T
J
< 0°C
V
IN
= 1.5V, I
LOAD
= 1mA
1.15V < V
IN
< 10V, 1mA < I
LOAD
< 500mA
LT3021-1.2
LT3021-1.5
LT3021-1.8
Line Regulation (Note 6)
LT3021
LT3021-1.2
LT3021-1.5
LT3021-1.8
LT3021
LT3021-1.2
LT3021-1.5
LT3021-1.8
I
LOAD
= 10mA
I
LOAD
= 10mA
I
LOAD
= 500mA
I
LOAD
= 500mA
GND Pin Current
V
IN
= V
OUT(NOMINAL)
+ 0.4V
(Notes 8, 12)
Output Voltage Noise
ADJ Pin Bias Current
Shutdown Threshold
SHDN
Pin Current (Note 10)
Quiescent Current in Shutdown
Ripple Rejection (Note 6)
I
LOAD
= 0mA
I
LOAD
= 10mA
I
LOAD
= 100mA
I
LOAD
= 500mA
C
OUT
= 4.7μF I
LOAD
= 500mA, BW = 10Hz to 100kHz, V
OUT
= 1.2V
,
V
ADJ
= 0.2V, V
IN
= 1.2V (Notes 6, 9)
V
OUT
= Off to On
V
OUT
= On to Off
V
SHDN
= 0V, V
IN
= 10V
V
SHDN
= 10V, V
IN
= 10V
V
IN
= 6V, V
SHDN
= 0V
LT3021
LT3021-1.2
LT3021-1.5
LT3021-1.8
Current Limit (Note 12)
Input Reverse Leakage Current
Reverse Output Current
(Notes 11, 13)
V
IN
– V
OUT
= 1V, V
RIP
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= 500mA
V
IN
– V
OUT
= 1V, V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= 500mA
V
IN
– V
OUT
= 1V, V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= 500mA
V
IN
– V
OUT
= 1V, V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= 500mA
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
J
= 25°C.
MIN
TYP
0.9
0.9
196
193
1.176
1.157
1.470
1.447
1.764
1.737
–1.75
–10.5
–13
–15.8
–2
–6
–7.5
–9
l
l
l
l
MAX
1.05
1.10
204
206
1.224
1.236
1.530
1.545
1.836
1.854
+1.75
10.5
13
15.8
2
6
7.5
9
75
110
190
285
250
10
50
0.9
±1
9.5
9
UNITS
V
V
mV
mV
V
V
V
V
V
V
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
μA
μA
mA
mA
μV
RMS
nA
V
V
μA
μA
μA
dB
dB
dB
dB
A
mA
200
200
1.200
1.200
1.500
1.500
1.800
1.800
0
0
0
0
0.4
1
1.5
2
45
155
110
920
2.25
6.20
300
20
0.61
0.61
3
3
70
60
58
56
1.8
V
IN
= 1.5V, I
LOAD
= 1mA
1.5V < V
IN
< 10V, 1mA < I
LOAD
< 500mA
V
IN
= 1.8V, I
LOAD
= 1mA
1.8V < V
IN
< 10V, 1mA < I
LOAD
< 500mA
V
IN
= 2.1V, I
LOAD
= 1mA
2.1V < V
IN
< 10V, 1mA < I
LOAD
< 500mA
ΔV
IN
= 1.15V to 10V, I
LOAD
= 1mA
ΔV
IN
= 1.5V to 10V, I
LOAD
= 1mA
ΔV
IN
= 1.8V to 10V, I
LOAD
= 1mA
ΔV
IN
= 2.1V to 10V, I
LOAD
= 1mA
V
IN
= 1.15V, ΔI
LOAD
= 1mA to 500mA
V
IN
= 1.5V, ΔI
LOAD
= 1mA to 500mA
V
IN
= 1.8V, ΔI
LOAD
= 1mA to 500mA
V
IN
= 2.1V, ΔI
LOAD
= 1mA to 500mA
Load Regulation (Note 6)
Dropout Voltage (Notes 7, 12)
0.25
V
IN
= 10V, V
OUT
= 0V
V
IN
= V
OUT(NOMINAL)
+ 0.5V, ΔV
OUT
= –5%
V
IN
= –10V, V
OUT
= 0V
LT3021
LT3021-1.2
LT3021-1.5
LT3021-1.8
V
OUT
= 1.2V, V
IN
= 0V
V
OUT
= 1.2V, V
IN
= 0V
V
OUT
= 1.5V, V
IN
= 0V
V
OUT
= 1.8V, V
IN
= 0V
550
1
0.5
10
10
10
20
5
15
15
15
μA
μA
μA
μA
μA
3021fc
4
LT3021/LT3021-1.2/
LT3021-1.5/LT3021-1.8
ELECTRICAL CHARACTERISTICS
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
J
= 25°C.
voltage, not the 0.5V output voltage. Specifications for fixed output voltage
devices are referred to the output voltage.
Note 7:
Dropout voltage is the minimum input to output voltage differential
needed to maintain regulation at a specified output current. In dropout the
output voltage equals: (V
IN
– V
DROPOUT
).
Note 8:
GND pin current is tested with V
IN
= V
OUT(NOMINAL)
+ 0.4V and a
current source load. GND pin current will increase in dropout. See GND pin
current curves in the Typical Performance Characteristics section.
Note 9:
Adjust pin bias current flows out of the ADJ pin.
Note 10:
Shutdown pin current flows into the
SHDN
pin.
Note 11:
Reverse output current is tested with IN grounded and OUT
forced to the rated output voltage. This current flows into the OUT pin and
out of the GND pin. For fixed voltage devices this includes the current in
the output resistor divider.
Note 12:
The LT3021 is tested and specified for these conditions with an
external resistor divider (20k and 100k) setting V
OUT
to 1.2V. The external
resistor divider adds 10μA of load current.
Note 13:
Reverse current is higher for the case of (rated_output) < V
OUT
< V
IN,
because the no-load recovery circuitry is active in this region and is
trying to restore the output voltage to its nominal value.
Note 14:
Minimum input voltage is the minimum voltage required by the
control circuit to regulate the output voltage and supply the full 500mA
rated current. This specification is tested at V
OUT
= 0.5V. At higher output
voltages the minimum input voltage required for regulation will be equal to
the regulated output voltage V
OUT
plus the dropout voltage.
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 LT3021 regulators are tested and specified under pulse load
conditions such that T
J
≈ T
A
. The LT3021E regulators are 100% tested
at T
A
= 25°C. Performance at –40°C and 125°C is assured by design,
characterization and correlation with statistical process controls. The
LT3021I regulators are guaranteed over the full –40ºC to 125ºC operating
junction temperature range.
Note 3:
This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 4:
Maximum junction temperature limits operating conditions. The
regulated output voltage specification does not apply for all possible
combinations of input voltage and output current. Limit the output current
range if operating at maximum input voltage. Limit the input voltage range
if operating at maximum output current.
Note 5:
Typically the LT3021 supplies 500mA output current with a 1V
input supply. The guranteed minimum input voltage for 500mA output
current is 1.10V.
Note 6:
The LT3021 is tested and specified for these conditions with an
external resistor divider (20k and 30.1k) setting V
OUT
to 0.5V. The external
resistor divider adds 10μA of output load current. The line regulation and
load regulation specifications refer to the change in the 0.2V reference
LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Regulator; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C
LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Regulator; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C
LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Regulator; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C
LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Regulator; Package: DFN; Pins: 16; Temperature Range: -40°C to 85°C
LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Regulator; Package: DFN; Pins: 16; Temperature Range: -40°C to 85°C
LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Regulator; Package: DFN; Pins: 16; Temperature Range: -40°C to 85°C
LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Regulator; Package: DFN; Pins: 16; Temperature Range: -40°C to 85°C
LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Regulator; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C
Brand Name
Linear Technology
Linear Technology
Linear Technology
Linear Technology
Linear Technology
Linear Technology
Linear Technology
Linear Technology
Is it Rohs certified?
incompatible
incompatible
incompatible
incompatible
incompatible
incompatible
incompatible
incompatible
Parts packaging code
SOIC
SOIC
SOIC
DFN
DFN
DFN
DFN
SOIC
package instruction
0.150 INCH, PLASTIC, SOP-8
0.150 INCH, PLASTIC, SOP-8
0.150 INCH, PLASTIC, SOP-8
5 X 5 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WJJD-1, DFN-16
5 X 5 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WJJD-1, DFN-16
5 X 5 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WJJD-1, DFN-16
I always think that the slew rate (SR) of an op amp is as important as its gain-bandwidth product GBW. But it is often overlooked. The reason why it is important is that the gain-bandwidth product GBW...
Article excerpt: "ARM Cortex-M0 starts here" Author: zhaojun_xfhttps://bbs.eeworld.com.cn/thread-324656-1-1.htmlImplementation of digital clockAfter learning the above content, it is not difficult to ...
My Pingtouge RVB2601 board arrived, and the first thing I did was to power it on and test it to see if it was good or not. After powering on, I heard a female voice saying "Welcome to the YOZ routine"...
In the village, I recently heard that the neighbors around me are often robbed. I want to install an alarm myself, but I don’t know what to use. Please give me some advice....
Please help me adjust the ARM+DS18b20 timing. I have been trying to adjust it for a long time but still can't get it right. Crystal oscillator 11.0592. Controller LPC2131, no need to look at the seria...
The TIA Portal software's shift instructions shift the contents of an accumulator bit by bit to the left or right. The number of bits shifted is determined by N. A left shift of N bits multiplies t...[Details]
The problem of dynamic sealing of equipment always exists with the operation of the equipment. Today, we have specially sorted out the various commonly used sealing forms, usage scope and character...[Details]
Multi-touch mobile phone
Multi-touch is a system that can respond to multiple touches on the screen at the same time. Multi-touch phones are divided into capacitive and resistive types. Capaci...[Details]
On August 25th, Apple's expansion in India encountered new troubles. According to Bloomberg, Foxconn Technology Group has recalled approximately 300 Chinese engineers from India, further hindering ...[Details]
Robotics
has become
LiDAR
's "second growth curve."
While LiDAR was still battling with its "pure vision" rivals in the automotive field, another field ignited the demand f...[Details]
Based on a survey of more than ten intelligent robot companies, this article sorts out and analyzes the current development status of the intelligent industry and the challenges and differences it ...[Details]
The all-new MG4 was recently officially announced on the Ministry of Industry and Information Technology's (MIIT) new vehicle announcement. The all-new MG4's semi-solid-state battery version addres...[Details]
On August 21st, BYD announced the launch of its next-generation "Little White Pile" product, the "Lingchong"
charging
pile
, which is now available for general sale. This charging pile feat...[Details]
Batteries, at the core of new energy vehicles, are crucial to vehicle performance and range. Existing automotive batteries are categorized into lead-acid and lithium batteries. Currently, new energ...[Details]
The range of an electric vehicle is crucial to the driving experience, and range anxiety is a common headache when driving an electric vehicle. Although the latest electric vehicles can achieve a r...[Details]
Electric vehicles will revolutionize transportation, changing fuel consumption, carbon emissions, costs, maintenance, and driving habits. Currently, a major selling point for electric vehicles is t...[Details]
Summer is the peak season for buying and using air conditioners. Do you pay attention to the energy efficiency of your air conditioner? Did you buy a DC inverter air conditioner? Do you know the re...[Details]
introduction
With the development of society, people's requirements for the quality of refrigerated and frozen foods are constantly improving. The changes in food appearance and nutritional co...[Details]
introduction
With the development of the information superhighway and the internet, broadcast television has become increasingly widespread worldwide. Television information has emerged in var...[Details]
Most cameras on the market use chips manufactured by Japanese companies like Sony, Sharp, Panasonic, and LG. South Korea now has the capability to produce chips, but the quality is somewhat inferio...[Details]
Analogue and Mixed Signal
京公网安备 11010802033920号
EEWORLD
