Overview
The ADP1720ARMZ-5-R7 is a high voltage, micropower linear regulator produced by Analog Devices Inc. This device is designed for applications requiring low quiescent current and features a wide input voltage range of 4 V to 28 V. It is optimized for stable operation with small 1μF ceramic output capacitors, making it ideal for space-constrained designs. The regulator includes current limit and thermal overload protection circuits to ensure reliability in adverse conditions.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Input Voltage Range | 4 V to 28 V | TJ = –40°C to +125°C, VIN = 12V, IOUT = 100μA |
| Output Voltage | 5 V | |
| Output Current | Up to 50 mA | |
| Quiescent Current | 28 μA | At 0 μA load |
| Shutdown Current | 0.7 μA | |
| Dropout Voltage | 275 mV | At 50 mA load |
| Initial Accuracy | ±0.5% | |
| Accuracy over Line, Load, and Temperature | ±2% | |
| Noise | 146 μV rms (typ) | VOUT = 1.6V, COUT = 1μF |
| Line Regulation | –0.02 to +0.02%/V | VIN = (VOUT + 0.5V) to 28V, TJ = -40°C to +125°C |
| Thermal Shutdown | 150°C (typ) | TJ rising, VIN = 12V, IOUT = 100μA, TA = 25°C |
| Package | 8-lead MSOP | |
| Operating Temperature Range | –40°C to +125°C |
Key Features
- High voltage input range of 4 V to 28 V
- Low quiescent current of 28 μA and low shutdown current of 0.7 μA
- Low dropout voltage of 275 mV at 50 mA load
- Stable operation with small 1μF ceramic output capacitors
- Current limit and thermal overload protection
- Logic-controlled enable pin for automatic startup
- Compact 8-lead MSOP package with low thermal resistance
Applications
- DC-to-DC post regulation
- PCMCIA regulation
- Keep-alive power in portable equipment
- Industrial applications
Q & A
- What is the input voltage range of the ADP1720ARMZ-5-R7?
The input voltage range is from 4 V to 28 V.
- What is the output voltage of the ADP1720ARMZ-5-R7?
The output voltage is fixed at 5 V.
- What is the quiescent current of the ADP1720ARMZ-5-R7?
The quiescent current is 28 μA at 0 μA load.
- What is the dropout voltage of the ADP1720ARMZ-5-R7?
The dropout voltage is 275 mV at a 50 mA load.
- Does the ADP1720ARMZ-5-R7 have built-in protection features?
Yes, it includes current limit and thermal overload protection.
- What type of package does the ADP1720ARMZ-5-R7 come in?
The device comes in an 8-lead MSOP package.
- What is the operating temperature range of the ADP1720ARMZ-5-R7?
The operating temperature range is from –40°C to +125°C.
- Is the ADP1720ARMZ-5-R7 suitable for low power applications?
Yes, it is suitable due to its low quiescent current and low shutdown current.
- Can the ADP1720ARMZ-5-R7 be used in industrial applications?
Yes, it is suitable for industrial applications due to its robust features and wide operating range.
- How does the enable pin function on the ADP1720ARMZ-5-R7?
The enable pin can be connected directly to the input rail for automatic startup.
