LT3029 LINER [Linear Technology], LT3029 Datasheet - Page 3

• Manufacturer Part Number: LT3029
• Description: Dual 500mA/500mA Low Dropout, Low Noise, Micropower Linear Regulator
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
PARAMETER
Minimum Input Voltage (Notes 3, 11)
ADJ1, ADJ2 Pin Voltage (Notes 3, 4, 9)
Line Regulation (Note 3)
Load Regulation (Note 3)
Dropout Voltage
V
(Notes 5, 6, 11)
GND Pin Current (per Channel)
V
(Notes 5, 7)
Output Voltage Noise
ADJ1/ADJ2 Pin Bias Current
Shutdown Threshold
SHDN1/SHDN2 Pin Current (Note 10)
Quiescent Current in Shutdown (per Channel)
Ripple Rejection
Current Limit (Note 9)
Input Reverse Leakage Current
Reverse Output Current
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 LT3029 is tested and specifi ed under pulse load conditions
such that T
of the LT3029E over the full –40°C to 125°C operating junction
temperature range is assured by design, characterization and correlation
with statistical process controls. The LT3029I is guaranteed over the full
–40°C to 125°C operating junction temperature range. The LT3029MP is
100% tested and guaranteed over the –55°C to 125°C operating junction
temperature range. The LT3029H 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.
IN
IN
= V
= V
OUT(NOMINAL)
OUT(NOMINAL)
J
≈ T
A
. The LT3029E is 100% tested at T
A
= 25°C. Performance
CONDITIONS
I
V
2.3V < V
2.3V < V
ΔV
V
V
V
I
I
I
I
I
I
I
I
I
I
I
I
I
I
C
BW = 10Hz to 100kHz
ADJ1, ADJ2 (Notes 3, 8)
V
V
V
V
V
V
f
V
V
V
V
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
RIPPLE
IN
IN
IN
IN
OUT
OUT
OUT
SHDN1
SHDN1
IN
IN
IN
IN
IN
OUT
IN
= 2V, I
= 2.3V, ΔI
= 2.3V, ΔI
= 2.3V, ΔI
= 6V, V
= 2.715V (Avg), V
= 7V, V
= 2.3V, ΔV
= –20V, V
A
= 2V to 20V, I
= 10μF , C
= Off to On
= On to Off
= 1.215V, V
= 500mA
= 10mA
= 10mA
= 50mA
= 50mA
= 100mA
= 100mA
= 500mA
= 500mA
= 0mA
= 1mA
= 50mA
= 100mA
= 250mA
= 500mA
= 25°C. (Note 2)
, V
, V
= 120Hz, I
IN
IN
LOAD
SHDN2
SHDN2
SHDN1
OUT
< 20V, 1mA < I
< 20V, 1mA < I
The
LOAD
LOAD
LOAD
OUT
OUT
BYP
= 0V
= 1mA
= 0V
= 20V
IN
= 0V, V
= 0V
l
LOAD
= –0.1V
LOAD
= 1mA to 500mA
= 1mA to 500mA (E, I, MP)
= 1mA to 500mA (H)
= 10nF , I
= 0V
denotes the specifi cations which apply over the full operating
RIPPLE
= 500mA
= 1mA
SHDN2
Note 3: The LT3029 is tested and specifi ed 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 specifi cation 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 LT3029 is
tested and specifi ed for these conditions with an external resistor divider
(two 243k resistors) for an output voltage of 2.437V. 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 specifi ed output current. In dropout, the
output voltage equals: V
LOAD
LOAD
LOAD
= 0.5V
= 0V
< 500mA (E, I, MP)
< 500mA (H)
= 500mA,
P-P
,
IN
– V
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
DROPOUT
1.203
1.191
1.173
MIN
0.20
520
55
.
1.215
1.215
1.215
0.11
0.16
0.45
0.40
0.01
TYP
1.8
0.5
2.5
0.2
0.3
1.1
4.3
0.6
1.5
0.5
55
90
10
20
30
67
2
0
LT3029
1.227
1.239
1.239
MAX
0.18
0.25
0.22
0.31
0.25
0.34
0.36
0.46
150
250
100
2.3
3.5
1.1
0.5
0.1
15
32
16
10
5
6
2
8
3
1
μV
UNITS
3
3029f
RMS
mV
mV
mV
mV
mA
mA
mA
mA
mA
mA
μA
μA
nA
μA
μA
μA
dB
μA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A