RH1185
RH1185
PRODUCTIONNegative Regulator with Adjustable Current Limit
- Part Models
- 2
- 1ku List Price
- Starting From $423.67
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Overview
Absolute Maximum Ratings
- Input Voltage: 35V
- Input-Output Differential : 0V
- FB Voltage: 7V
- REF Voltage: 7V
- Output Voltage: 30V
- Output Reverse Voltage: 2V
- Operating Ambient Temperature Range: –55°C to 125°C
- Operating Junction Temperature Range:
- Control Section: –55°C to 150°C
- Power Transistor Section: –55°C to 175°C
- Storage Temperature Range: –65°C to 150°C
- Thermal Resistance Junction to Case:
- TO-3 Control Area: 1°C/W
- Power Transistor: 3°C/W
- Lead Temperature (Soldering, 10 sec): 300°C
The RH1185AMK is a 3A low dropout regulator with adjustable current limit and remote sense capability. It can be used as a positive regulator with floating input or as a standard negative regulator with grounded input. The output voltage range is 2.5V to 25V, with ±1% accuracy on the internal reference voltage.
The RH1185AMK uses a saturation-limited NPN transistor as the pass element. This structure gives the linear dropout characteristics of a FET pass element with significantly less die area. High efficiency is maintained by using special anti-saturation circuitry that adjusts base drive to track load current.
The on-resistance is typically 0.25Ω. Accurate current limit is programmed with a single 1/8W external resistor, with a range of zero to three amperes. A second, fixed internal limit circuit prevents destructive currents if the programming current is accidentally overranged.
The RH1185AMK has all the protection features of our previous regulators, including power limiting and thermal shutdown.
Third Party Vendor Availability
Analog Devices partners with third party vendors who assemble and test packaged products with RH Dice inside.
| Part Number | Description |
| MSK5940-5.0RH | 3A Negative Fixed Voltage LDO Regulator |
| MSK5940-5.2RH | 3A Negative Fixed Voltage LDO Regulator |
| MSK5940-10RH | 3A Negative Fixed Voltage LDO Regulator |
| MSK5940-12RH |
3A Negative Fixed Voltage LDO Regulator |
| MSK5940-15RH | 3A Negative Fixed Voltage LDO Regulator |
| VRG8651 | 1A/3A Dual Positive/Negative Adj. LDO Reg, Thru Hole |
| VRG8652 | 1A/3A Dual Positive/Negative Adj. LDO Reg, Surf Mount |
| VRG8653 | 3A Dual Positive/Negative Adj. Regulator, Thru Hole |
| VRG8654 | 3A Dual Positive/Negative Adj. Regulator, Surf Mount |
| VRG863 | 3A Negative Adjustable Regulator |
Documentation
Data Sheet 1
Controlled Drawings 2
Spec Notice 1
High Dose Rate Radiation Reports 1
Brochure 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| RH1185AMK | ROUND HEADER/METAL CAN | ||
| RH1185AMKDICE | DIE |
This is the most up-to-date revision of the Data Sheet.