Datasheet Linear Technology LT1185
| Manufacturer | Linear Technology |
| Series | LT1185 |
Low Dropout Regulator
Datasheets
Datasheet LT1185
PDF, 188 Kb, Language: en, File uploaded: Sep 2, 2017, Pages: 16
Low Dropout Regulator
Low Dropout Regulator
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Prices
Packaging
| LT1185CQ#PBF | LT1185CQ#TRPBF | LT1185CT#06PBF | LT1185CT#30PBF | LT1185CT#33PBF | LT1185CT#PBF | LT1185IQ#PBF | LT1185IQ#TRPBF | LT1185IT#06PBF | LT1185IT#30PBF | LT1185IT#31PBF | LT1185IT#PBF | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Package | DDPAK-5 Package Outline Drawing | DDPAK-5 Package Outline Drawing | TO-220 Package Outline Drawing | TO-220 Package Outline Drawing | TO-220 Package Outline Drawing | TO-220 Package Outline Drawing | DDPAK-5 Package Outline Drawing | DDPAK-5 Package Outline Drawing | TO-220 Package Outline Drawing | TO-220 Package Outline Drawing | TO-220 Package Outline Drawing | TO-220 Package Outline Drawing |
| Package Code | Q | Q | T | T | T | T | Q | Q | T | T | T | T |
| Package Index | 05-08-1461 | 05-08-1461 | 05-08-1421 (Flow 06) | 05-08-1421 (Std) | 05-08-1421 (Std) | 05-08-1421 (Std) | 05-08-1461 | 05-08-1461 | 05-08-1421 (Flow 06) | 05-08-1421 (Std) | 05-08-1421 (Std) | 05-08-1421 (Std) |
| Pin Count | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
Parametrics
| Parameters / Models | LT1185CQ#PBF | LT1185CQ#TRPBF | LT1185CT#06PBF | LT1185CT#30PBF | LT1185CT#33PBF | LT1185CT#PBF | LT1185IQ#PBF | LT1185IQ#TRPBF | LT1185IT#06PBF | LT1185IT#30PBF | LT1185IT#31PBF | LT1185IT#PBF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Design Tools | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File |
| Discrete Pass Element | no | no | no | no | no | no | no | no | no | no | no | no |
| Dropout Voltage, V | 0.67 | 0.67 | 0.67 | 0.67 | 0.67 | 0.67 | 0.67 | 0.67 | 0.67 | 0.67 | 0.67 | 0.67 |
| Export Control | no | no | no | no | no | no | no | no | no | no | no | no |
| Features | Shutdown | Shutdown | Shutdown | Shutdown | Shutdown | Shutdown | Shutdown | Shutdown | Shutdown | Shutdown | Shutdown | Shutdown |
| Ishutdown, µA | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Isupply, mA | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Max Junction Temp, Deg | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Operating Temperature Range, °C | 0 to 70 | 0 to 70 | 0 to 70 | 0 to 70 | 0 to 70 | 0 to 70 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Output Current, A | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Output Voltage | -Adj | -Adj | -Adj | -Adj | -Adj | -Adj | -Adj | -Adj | -Adj | -Adj | -Adj | -Adj |
| Theta JA | 30В°C/W (Q), 50В°C/W (T) | 30В°C/W (Q), 50В°C/W (T) | 30В°C/W (Q), 50В°C/W (T) | 30В°C/W (Q), 50В°C/W (T) | 30В°C/W (Q), 50В°C/W (T) | 30В°C/W (Q), 50В°C/W (T) | 30В°C/W (Q), 50В°C/W (T) | 30В°C/W (Q), 50В°C/W (T) | 30В°C/W (Q), 50В°C/W (T) | 30В°C/W (Q), 50В°C/W (T) | 30В°C/W (Q), 50В°C/W (T) | 30В°C/W (Q), 50В°C/W (T) |
| Type | NPN | NPN | NPN | NPN | NPN | NPN | NPN | NPN | NPN | NPN | NPN | NPN |
| Vin Max, V | -4.2 | -4.2 | -4.2 | -4.2 | -4.2 | -4.2 | -4.2 | -4.2 | -4.2 | -4.2 | -4.2 | -4.2 |
| Vin Min, V | -35 | -35 | -35 | -35 | -35 | -35 | -35 | -35 | -35 | -35 | -35 | -35 |
| Vout Max, V | -2.4 | -2.4 | -2.4 | -2.4 | -2.4 | -2.4 | -2.4 | -2.4 | -2.4 | -2.4 | -2.4 | -2.4 |
| Vout Min, V | -34 | -34 | -34 | -34 | -34 | -34 | -34 | -34 | -34 | -34 | -34 | -34 |
Eco Plan
| LT1185CQ#PBF | LT1185CQ#TRPBF | LT1185CT#06PBF | LT1185CT#30PBF | LT1185CT#33PBF | LT1185CT#PBF | LT1185IQ#PBF | LT1185IQ#TRPBF | LT1185IT#06PBF | LT1185IT#30PBF | LT1185IT#31PBF | LT1185IT#PBF | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Application Notes
- Efficiency and Power Characteristics of Switching Regulator Circuits &mdash AN46PDF, 2.6 Mb, File published: Nov 1, 1991
Efficiency varies for different DC/DC converters. This application note compares the efficiency characteristics of some of the more popular types. Step-up, step-down, flyback, negative-to-positive, and positive-to-negative are shown. Appended sections discuss how to select the proper aluminum electrolytic capacitor and explain power switch and output diode loss calculations.
Model Line
Series: LT1185 (12)
Manufacturer's Classification
- Power Management > LDO Linear Regulators > Negative Linear Regulators (LDO)
