EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
FE PACKAGE
20-LEAD PLASTIC TSSOP
T
JMAX
= 150°C,
θ
JA
= 28°C/W, ,
θ
JC
= 10°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
orDer inForMaTion
LEAD FREE FINISH
LT3030EUFD#PBF
LT3030IUFD#PBF
LT3030HUFD#PBF
LT3030EFE#PBF
LT3030IFE#PBF
LT3030HFE#PBF
LT3030MPFE#PBF
TAPE AND REEL
LT3030EUFD#TRPBF
LT3030IUFD#TRPBF
LT3030HUFD#TRPBF
LT3030EFE#TRPBF
LT3030IFE#TRPBF
LT3030HFE#TRPBF
LT3030MPFE#TRPBF
PART MARKING*
3030
3030
3030
LT3030FE
LT3030FE
LT3030FE
LT3030FE
PACKAGE DESCRIPTION
28-Lead (4mm × 5mm) Plastic QFN
28-Lead (4mm × 5mm) Plastic QFN
28-Lead (4mm × 5mm) Plastic QFN
20-Lead Plastic TSSOP
20-Lead Plastic TSSOP
20-Lead Plastic TSSOP
20-Lead Plastic TSSOP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–55°C to 150°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/
3030fa
2
For more information
www.linear.com/LT3030
LT3030
elecTrical characTerisTics
PARAMETER
Minimum Input Voltage (Notes 3, 11)
ADJ1, ADJ2 Pin Voltage (Notes 3, 4)
CONDITIONS
Output 1, I
LOAD
= 750mA
Output 2, I
LOAD
= 250mA
V
IN
= 2V, I
LOAD
= 1mA
Output 1, 2.2V < V
IN1
< 20V, 1mA < I
LOAD
< 750mA
Output 2, 2.2V < V
IN2
< 20V, 1mA < I
LOAD
< 250mA
∆V
IN
= 2V to 20V, I
LOAD
= 1mA
Output 1, V
IN1
= 2.2V, ∆I
LOAD
= 1mA to 750mA
V
IN1
= 2.2V, ∆I
LOAD
= 1mA to 750mA
Output 2, V
IN2
= 2.2V, ∆I
LOAD
= 1mA to 250mA
V
IN2
= 2.2V, ∆I
LOAD
= 1mA to 250mA
Dropout Voltage (Output 1)
V
IN1
= V
OUT1(NOMINAL)
(Notes 5, 6, 11)
I
LOAD
= 10mA
I
LOAD
= 10mA
I
LOAD
= 100mA
I
LOAD
= 100mA
I
LOAD
= 500mA
I
LOAD
= 500mA
I
LOAD
= 750mA
I
LOAD
= 750mA
Dropout Voltage (Output 2)
V
IN2
= V
OUT2(NOMINAL)
(Notes 5, 6, 11)
I
LOAD
= 10mA
I
LOAD
= 10mA
I
LOAD
= 50mA
I
LOAD
= 50mA
I
LOAD
= 100mA
I
LOAD
= 100mA
I
LOAD
= 250mA
I
LOAD
= 250mA
GND Pin Current (Output 1)
V
IN1
= V
OUT1(NOMINAL)
(Notes 5, 7)
I
LOAD
= 0mA
I
LOAD
= 10mA
I
LOAD
= 100mA
I
LOAD
= 500mA
I
LOAD
= 750mA
I
LOAD
= 0mA
I
LOAD
= 10mA
I
LOAD
= 50mA
I
LOAD
= 100mA
I
LOAD
= 250mA
C
OUT
= 10μF, C
BYP
= 10nF, I
LOAD
= Full Current (Note 13)
BW = 10Hz to 100kHz
V
OUT
= Off to On
V
OUT
= On to Off
Hysteresis (Note 2)
V
SHDN1
, V
SHDN2
= 0V
V
SHDN1
, V
SHDN2
= 20V
% of Nominal Output Voltage, Output Rising
% of Nominal Output Voltage, Output Falling
I
PWRGD
= 100μA
V
SHDN
= 0V, V
PWRGD
= 20V
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 (Note 2).
MIN
TYP
1.7
1.7
1.208
1.196
1.196
1.220
1.220
1.220
0.5
2
2
l
MAX
2.2
2.2
1.232
1.244
1.244
5
6
10
6
10
0.20
0.28
0.23
0.33
0.32
0.43
0.36
0.48
0.20
0.28
0.24
0.32
0.28
0.38
0.36
0.48
300
800
3.8
17
27
200
600
1.8
3.4
9
UNITS
V
V
V
V
V
mV
mV
mV
mV
mV
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
μA
μA
mA
mA
mA
μA
μA
mA
mA
mA
μV
RMS
Line Regulation (Note 3)
Load Regulation (Note 3)
0.13
l
0.17
l
0.27
l
0.3
l
0.14
l
0.18
l
0.22
l
0.3
l
l
l
l
l
l
l
l
l
l
l
120
420
2
9
15
75
330
1
1.8
5
20
30
1.09
0.5
1.21
0.83
0.38
0
0.85
0.3
86
90
1.6
15
GND Pin Current (Output 2)
V
IN2
= V
OUT2(NOMINAL)
(Notes 5, 7)
Output Voltage Noise
ADJ1/ADJ2 Pin Bias Current (Notes 3, 8)
Shutdown Threshold
100
1.33
nA
V
V
V
μA
μA
μA
%
%
mV
μA
3030fa
SHDN1/SHDN2
Pin Current (Note 10)
0.5
3
2
94
150
1
Quiescent Current in Shutdown (per Channel) V
IN
= 20V, V
SHDN1
= 0V, V
SHDN2
= 0V
PWRGD Trip Point
PWRGD Trip Point Hysteresis (Note 2)
PWRGD Output Low Voltage
PWRGD Leakage Current
l
For more information
www.linear.com/LT3030
3
LT3030
elecTrical characTerisTics
PARAMETER
Ripple Rejection
CONDITIONS
V
IN
= 2.72V (Avg), V
RIPPLE
= 0.5V
P-P
,
f
RIPPLE
= 120Hz, I
LOAD
= Full Current (Note 13)
V
IN
= V
OUT(NOMINAL)
+ 1V, V
RIPPLE
= 50mV
RMS
f
RIPPLE
= 1MHz, I
LOAD
= Full Current (Note 13)
Current Limit (Note 9)
Output 1, V
IN1
= 6V, V
OUT1
= 0V
V
IN1
= 2.2V, ∆V
OUT1
= –0.1V
Output 2, V
IN2
= 6V, V
OUT2
= 0V
V
IN2
= 2.2V, ∆V
OUT2
= –0.1V
Input Reverse Leakage Current
Reverse Output Current
V
IN
= –20V, V
OUT
= 0V
V
OUT
= 1.220V, V
IN
= 0V
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 (Note 2).
MIN
50
TYP
60
50
1.1
800
350
270
1.4
420
1.7
490
1
0.5
10
MAX
UNITS
dB
dB
A
mA
mA
mA
mA
μA
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 LT3030 is tested and specified under pulse load conditions
such that T
J
≈ T
A
. The LT3030E is 100% tested at T
A
= 25°C and
performance is guaranteed from 0°C to 125°C. Performance of the
LT3030E over the full –40°C to 125°C operating junction temperature
range is assured by design, characterization and correlation with statistical
process controls. The LT3030I is guaranteed over the full –40°C to 125°C
operating junction temperature range. The LT3030MP is 100% tested and
guaranteed over the –55°C to 150°C operating junction temperature range.
The LT3030H is tested at 150°C operating junction temperature. High
junction temperatures degrade operating lifetimes. Operating lifetime is
derated at junction temperatures greater than 125°C.
Note 3:
The LT3030 is tested and specified for these conditions with the
ADJ1/ADJ2 pin connected to the corresponding OUT1/OUT2 pin.
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. When operating at
maximum input voltage, limit the output current range. When operating at
maximum output current, limit the input voltage range.
Note 5:
To satisfy minimum input voltage requirements, the LT3030 is
tested and specified for these conditions with an external resistor divider
(two 243k resistors) for an output voltage of 2.447V. The external resistor
divider adds 5μA of DC load on the output.
Note 6:
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 7:
GND pin current is tested with V
IN
= 2.447V and a current source
load. This means the device is tested while operating in its dropout region
or at the minimum input voltage specification. This is the worst-case
GND pin current. The GND pin current decreases slightly at higher input
voltages. Total GND pin current equals the sum of output 1 and output 2
GND pin currents.
Note 8:
ADJ1/ADJ2 pin bias current flows into the pin.
Note 9:
The LT3030 contains current limit foldback circuitry. See the
Typical Performance Characteristics section for current limit as a function
of the V
IN
– V
OUT
differential voltage.
Note 10:
SHDN1
and
SHDN2
pin current flows into the pin.
Note 11:
The LT3030 minimum input voltage specification limits dropout
voltage under some output voltage/load conditions. See the curve of
Minimum Input Voltage in the Typical Performance Characteristics section.
Note 12:
The LT3030 includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature exceeds the maximum operating junction temperature when
overtemperature protection is active. Continuous operation above the
specified maximum operating junction temperature may impair device
LED专区
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
