Datasheet

2
LT3028
3028f
T
JMAX
= 125°C, θ
JA
= 40°C/ W, θ
JC
= 10°C/ W
EXPOSED PAD (PIN 17) IS GND
MUST BE SOLDERED TO PCB
16
15
14
13
12
11
10
9
17
1
2
3
4
5
6
7
8
ADJ1
SHDN1
IN1
IN1
IN2
IN2
SHDN2
ADJ2
BYP1
NC
OUT1
OUT1
GND
OUT2
OUT2
BYP2
TOP VIEW
DHC PACKAGE
16-LEAD (5mm × 3mm) PLASTIC DFN
(Note 1)
IN1, IN2 Pin Voltage .............................................. ±20V
OUT1, OUT2 Pin Voltage ....................................... ±20V
Input-to-Output Differential Voltage....................... ±20V
ADJ1, ADJ2 Pin Voltage ......................................... ±7V
BYP1, BYP2 Pin Voltage ....................................... ±0.6V
SHDN1, SHDN2 Pin Voltage ................................. ±20V
Output Short-Circut Duration.......................... Indefinite
Consult factory for parts specified with wider operating temperature ranges.
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
LT3028EFE
LT3028IFE
ORDER PART
NUMBER
FE PART
MARKING
Operating Junction Temperature Range
(Note 2) ............................................ 40°C to 125°C
Storage Temperature Range
FE Package ....................................... 65°C to 150°C
DHC Package .................................... 65°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
T
JMAX
= 150°C, θ
JA
= 38°C/ W, θ
JC
= 8°C/ W
EXPOSED PAD (PIN 17) IS GND
MUST BE SOLDERED TO PCB
3028EFE
3028IFE
FE PACKAGE
16-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
GND
BYP1
OUT1
OUT1
GND
OUT2
BYP2
GND
GND
ADJ1
SHDN1
IN1
IN2
SHDN2
ADJ2
GND
17
LT3028EDHC
LT3028IDHC
ORDER PART
NUMBER
DHC PART
MARKING
3028
3028I
PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage Output 2, I
LOAD
= 100mA 1.8 2.3 V
(Notes 3, 10) Output 1, I
LOAD
= 500mA 1.8 2.3 V
ADJ1, ADJ2 Pin Voltage V
IN
= 2V, I
LOAD
= 1mA 1.205 1.220 1.235 V
(Notes 3, 4) Output 2, 2.3V < V
IN2
< 20V, 1mA < I
LOAD
< 100mA 1.190 1.220 1.250 V
Output 1, 2.3V < V
IN1
< 20V, 1mA < I
LOAD
< 500mA 1.190 1.220 1.250 V
Line Regulation (Note 3) V
IN
= 2V to 20V, I
LOAD
= 1mA 110 mV
Load Regulation (Note 3) Output 2, V
IN2
= 2.3V, I
LOAD
= 1mA to 100mA 1 12 mV
V
IN2
= 2.3V, I
LOAD
= 1mA to 100mA 25 mV
Output 1, V
IN1
= 2.3V, I
LOAD
= 1mA to 500mA 1 12 mV
V
IN1
= 2.3V, I
LOAD
= 1mA to 500mA 25 mV
The denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C. (Note 2)
ELECTRICAL CHARACTERISTICS