LT3028 LINER [Linear Technology], LT3028 Datasheet - Page 3

• Manufacturer Part Number: LT3028
• Description: Dual 100mA/500mA Low Dropout, Low Noise,Micropower Regulators with Independent Inputs
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
The
PARAMETER
Dropout Voltage
(Output 2)
V
(Notes 5, 6, 10)
Dropout Voltage
(Output 1)
V
(Notes 5, 6, 10)
GND Pin Current
(Output 2)
V
(Notes 5, 7)
GND Pin Current
(Output 1)
V
(Notes 5, 7)
Output Voltage Noise
ADJ1/ADJ2 Pin Bias Current
Shutdown Threshold
SHDN1/SHDN2 Pin Current
(Note 9)
Quiescent Current in Shutdown
Ripple Rejection
Current Limit
Input Reverse Leakage Current
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT3028 regulator is tested and specified under pulse load
conditions such that T
performance specifications from 0°C to 125°C junction temperature.
Specifications over the – 40°C to 125°C operating junction temperature
IN2
IN1
IN2
IN1
●
= V
= V
= V
= V
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
OUT2(NOMINAL)
OUT1(NOMINAL)
OUT2(NOMINAL)
OUT1(NOMINAL)
J
≈ T
A
. The LT3028E is guaranteed to meet
CONDITIONS
I
I
I
I
I
I
I
I
I
I
I
I
I
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
I
Output 2, V
Output 1, V
V
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
OUT
OUT
OUT
SHDN1
SHDN1
IN
IN
IN
= 6V, V
= 2.72V (Avg), V
= – 20V, V
= 10µF, C
= Off to On
= On to Off
= 1mA
= 1mA
= 10mA
= 10mA
= 50mA
= 50mA
= 100mA
= 100mA
= 10mA
= 10mA
= 50mA
= 50mA
= 100mA
= 100mA
= 500mA
= 500mA
= 0mA
= 1mA
= 10mA
= 50mA
= 100mA
= 0mA
= 1mA
= 50mA
= 100mA
= 250mA
= 500mA
= Full Current
, V
, V
V
V
SHDN2
SHDN2
SHDN1
IN2
IN2
IN1
IN1
OUT
= 7V, V
= 2.3V, ∆V
= 7V, V
= 2.3V, ∆V
BYP
= 0V
= 20V
= 0V, V
= 0V
= 0.01µF, I
RIPPLE
OUT2
OUT1
SHDN2
OUT2
OUT1
= 0V
= 0V
= 0.5V
LOAD
= – 0.1V
= – 0.1V
= 0V
P-P
= Full Current,
, f
RIPPLE
range are assured by design, characterization and correlation with
statistical process controls. The LT3028I is guaranteed and tested over the
full – 40°C to 125°C operating junction temperature range.
Note 3: The LT3028 is tested and specified for these conditions with the
ADJ1/ADJ2 pin connected to the corresponding OUT1/OUT2 pin.
= 120Hz,
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
0.25
MIN
110
520
55
0.10
0.17
0.24
0.30
0.12
0.17
0.21
0.32
0.80
0.65
0.01
TYP
230
500
2.2
1.3
25
60
30
65
10
20
30
65
1
1
2
5
0
1
A
= 25°C. (Note 2)
MAX
0.15
0.19
0.22
0.29
0.31
0.40
0.35
0.45
0.19
0.25
0.22
0.32
0.28
0.34
0.37
0.47
400
120
100
1.6
1.4
0.5
3.0
0.1
50
95
75
16
2
4
3
8
1
LT3028
µV
UNITS
3
3028f
RMS
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
µA
µA
µA
µA
µA
nA
µA
µA
µA
dB
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A