LD1085V STMicroelectronics, LD1085V Datasheet - Page 12

• Manufacturer Part Number: LD1085V
• Description: IC REG LDO POSITIVE ADJ TO-220
• Manufacturer: STMicroelectronics
• Type: Voltage Regulatorr

Specifications of LD1085V

• Regulator Topology: Positive Adjustable
• Voltage - Output: Adjustable
• Voltage - Input: Up to 30V
• Voltage - Dropout (typical): 1.3V @ 3A
• Number Of Regulators: 1
• Current - Output: 3A
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-3 (Straight Leads)
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 30 V
• Output Voltage: 1.25 V to 28 V
• Output Type: Adjustable
• Dropout Voltage (max): 1.5 V at 3 A
• Output Current: 3 A
• Line Regulation: 0.2 %
• Load Regulation: 0.3 %
• Voltage Regulation Accuracy: 1 %
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Current, Output: 3 mA
• Current, Supply: 55 μA
• Package Type: TO-220
• Regulation, Line: 0.015 %
• Regulation, Load: 0.1 %
• Regulator Type: Low Dropout, Positive Voltage Out
• Resistance, Thermal, Junction To Case: 3 °C/W
• Temperature, Operating, Range: -40 to +125 °C
• Voltage, Dropout: 1.3 V
• Voltage, Input: 4.25 V
• Voltage, Noise: 0.003 %
• Voltage, Output: 1.25 V
• Voltage, Supply, Rejection Ratio: 72 dB
• Primary Input Voltage: 30V
• Output Voltage Fixed: 28V
• Dropout Voltage Vdo: 1.3V
• No. Of Pins: 3
• Operating Temperature Range: -40°C To +125°C
• Filter Terminals: Through Hole
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-1482-5

Table 9.
1. See short-circuit current curve for available output current at fixed dropout.
12/28
Symbol
I
ΔI
O(min)
SVR
ΔV
ΔV
I
V
ADJ
eN
V
I
ADJ
S
S
sc
O
d
O
O
Output voltage
Line regulation
Load regulation
Dropout voltage
Minimum load current
Short circuit current
Thermal regulation
Supply voltage rejection
Adjust pin current
Adjust pin current change
RMS output noise voltage (%
of V
Temperature stability
Long term stability
Electrical characteristics of LD1085#
V
O
I
)
= 4.25 V, C
Parameter
(1)
I
= C
O
=10 µF, T
(1)
I
I
I
T
I
I
I
I
V
V
V
T
f = 120 Hz, C
I
V
I
T
T
O
O
O
O
O
O
O
O
O
A
A
A
J
I
I
I
I
= 10 mA T
= 10 mA to 3 A, V
= 10 mA, V
= 10 mA, V
= 10 mA to 3 A, T
= 0 to 3 A
= 3 A
= 30 V
- V
- V
= 3 A, V
= 4.25 V, I
= 10 mA to 3 A, V
= 25°C
= 25°C, 30ms pulse
= 25°C, f =10 Hz to 10 kHz
= 125°C, 1000 Hrs
A
Doc ID 6738 Rev 25
O
O
= -40 to 125 °C, unless otherwise specified.
= 5 V
= 25 V
I
Test condition
= 6.25 ± 3 V
O
J
O
I
I
= 25°C
= 10 mA
= 2.85 to 16.5 V,
= 2.85 to 16.5 V
= 25 µF,C
J
I
I
= 2.85 to 16.5 V
= 2.85 to 30 V
= 25°C
ADJ
= 25 µF,
1.237
1.225
Min.
5.5
0.5
60
0.015
0.035
0.003 0.015
0.003
Typ.
1.25
1.25
0.1
0.2
1.3
6.5
0.7
0.2
0.5
0.5
72
55
3
1.263
1.275
Max.
120
0.2
0.2
0.3
0.4
1.5
10
5
%/W
Unit
mA
dB
µA
µA
%
%
%
%
%
%
%
V
V
V
A
A