LT3010EMS8E Linear Technology, LT3010EMS8E Datasheet - Page 13

• Manufacturer Part Number: LT3010EMS8E
• Description: IC,VOLT REGULATOR,ADJUSTABLE,+1.275 TO +60V,BIPOLAR,TSSOP,8PIN,PLASTIC
• Manufacturer: Linear Technology
• Series: -r

Specifications of LT3010EMS8E

• Rohs Compliant: NO
• Regulator Topology: Positive Adjustable
• Voltage - Output: 1.275 V ~ 60 V
• Voltage - Input: 3 V ~ 80 V
• Voltage - Dropout (typical): 0.3V @ 50mA
• Number Of Regulators: 1
• Current - Output: 50mA
• Current - Limit (min): 60mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Lead Free Status / Rohs Status: Contains lead / RoHS non-compliant

APPLICATIONS INFORMATION
In circuits where a backup battery is required, several
different input/output conditions can occur. The output
voltage may be held up while the input is either pulled
to ground, pulled to some intermediate voltage, or is left
open circuit. Current flow back into the output will follow
the curve shown in Figure 5. The rise in reverse output
current above 7V occurs from the breakdown of the 7V
clamp on the ADJ pin. With a resistor divider on the
regulator output, this current will be reduced depending
on the size of the resistor divider.
100
90
80
70
60
50
40
30
20
10
0
0
Figure 5. Reverse Output Current
T
V
CURRENT FLOWS
INTO OUTPUT PIN
V
V
(LT3010-5)
A
IN
OUT
OUT
= 25°C
1
= 0V
= V
= V
LT3010
2
ADJ
SENSE
OUTPUT VOLTAGE (V)
3
(LT3010)
LT3010-5
4
5
When the IN pin of the LT3010 is forced below the OUT
pin or the OUT pin is pulled above the IN pin, input cur-
rent will typically drop to less than 2µA. This can happen
if the input of the LT3010 is connected to a discharged
(low voltage) battery and the output is held up by either
a backup battery or a second regulator circuit. The state
of the SHDN pin will have no effect on the reverse output
current when the output is pulled above the input.
6
(SEE ABOVE)
PIN CLAMP
7
ADJ
8
30105 F05
9
10
LT3010/LT3010-5
13
30105fe