LT1175IS8 Linear Technology, LT1175IS8 Datasheet - Page 6

• Manufacturer Part Number: LT1175IS8
• Description: IC LDO REG ADJST NEG 500MA 8SOIC
• Manufacturer: Linear Technology

Specifications of LT1175IS8

• Regulator Topology: Negative Adjustable
• Voltage - Output: -3.8 ~ -19.9 V
• Voltage - Input: -4.3 ~ -20 V
• Voltage - Dropout (typical): 0.5V @ 500mA
• Number Of Regulators: 1
• Current - Output: 500mA
• Current - Limit (min): Adjustable
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LT1175
TYPICAL PERFORMANCE CHARACTERISTICS
6
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
0
0
0
INPUT-TO-OUTPUT DIFFERENTIAL VOLTAGE (V)
0
Typical Current Limit
Characteristics
Minimum Input-to-Output Voltage
CURRENT LIMIT CHANGES ONLY SLIGHTLY
WITH TEMPERATURE SO CURVES ARE
REPRESENTATIVE OF ALL TEMPERATURES
I
T
V
UNTIL OUTPUT
VOLTAGE
DROPS 1%
LIM2
I
J
IN
LIM2
I
I
= 25°C
0.1
I
LIM2
LIM2
LIM4
REDUCED
, I
, I
LIM4
OPEN
5
, I
LIM4
TIED TO V
TIED TO V
LIM4
0.2
OUTPUT CURRENT (A)
TIED TO V
I
TIED TO V
LIM2
OPEN
10
0.3
, I
IN
IN
LIM4
I
IN
LIM2
IN
0.4
TO V
15
TIED
IN
0.5
I
TO V
LIM4
20
0.6
IN
TIED
1175 G04
1175 G01
0.7
25
1.0
0.8
0.6
0.4
0.2
0.6
0.5
0.4
0.3
0.2
0.1
0
0
0
Guaranteed Current Limit
0
INPUT-TO-OUTPUT DIFFERENTIAL VOLTAGE (V)
Minimum Input-to-Output Voltage
I
LIM2
V
VOLTAGE DROPS 1%.
I
I
I
I
LIM2
LIM4
LIM2
LIM2
IN
0.1
, I
REDUCED UNTIL OUTPUT
, I
, I
LIM4
TIED TO V
TIED TO V
5
LIM4
LIM4
0.2
OUTPUT CURRENT (A)
TIED TO V
TIED TO V
OPEN
T
10
J
T
IN
IN
0.3
= 125°C
J
= –55°C
IN
IN
0.4
15
CURVES REPRE-
SENT MINIMUM
GUARANTEED
LIMITS AT ALL
TEMPERATURES
0.5
T
20
J
0.6
= 25°C
1175 G05
1175 G02
0.7
25
5.05
5.00
4.95
3.84
3.80
3.76
100
80
60
40
20
0
–50
–50
Output Voltage Temperature Drift
SENSE Bias Current
(Adjustable Part)
FEEDBACK VOLTAGE
ADJUSTABLE PART
FIXED 5V PART
–25
–25
OUTPUT
JUNCTION TEMPERATURE (°C)
0
0
TEMPERATURE (°C)
25
25
50
50
75
75
100
100
1175 G06
1175 G03
1175ff
125
125