AT138RCV3.AT205, AT139, AT1391 Selling Leads, Datasheet
MFG:Aimtron D/C:07+
AT138RCV3.AT205, AT139, AT1391 Datasheet download
Part Number: AT138RCV3.AT205
MFG: Aimtron
Package Cooled:
D/C: 07+
AT138RCV3.AT205, AT139, AT1391
- Table of contents:
Info of AT138RCV3.AT205
Info of AT139
Info of AT1391
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About AT1
PDF/DataSheet Download
Datasheet: AT1
File Size: 55024 KB
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About AT1391P-GRE
PDF/DataSheet Download
Datasheet: AT1391P-GRE
File Size: 433019 KB
Manufacturer: AIMTRON
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About AT1391P-GRE
PDF/DataSheet Download
Datasheet: AT1391P-GRE
File Size: 433019 KB
Manufacturer: AIMTRON
Download : Click here to Download
AT1391 General Description
The AT1391 provides complete control and protection for a DC/DC converter optimized for high-performance microprocessor applications. It is designed to drive one P-Channel in a buck topology. The AT1391 integrates all of the control, output adjustment, and protection functions into a single package. The output voltage of the converter can be precisely regulated with a maximum tolerance of ±2% over temperature and line voltage variations. The AT1391 is a family of low-noise step-down DC/DC converters that is ideally suited for systems powered from a 1-cell Li-ion battery or from a 3-cell to 4-cell NiCd, NiMH, or alkaline battery. It can also be used to USB-Based power system.
AT1391 Maximum Ratings
| Parameter | Condition | Rated Value | Unit | |
| Min. | Max. | |||
| Power Supply Voltage | - | - | +7 | V |
| Source Average Current of OUT | - | - | -50 | mA |
| Sink Average Current of OUT | - | - | 50 | mA |
| Source Peak Current of OUT | - | - | -200 | mA |
| Sink Peak Current of OUT | - | - | 200 | mA |
| Input Voltage to Error Amplifier | - | - | 6.5 | V |
| Continuous power dissipation | TSSOP8(Ta=+25) | - | 500 | mW |
| Operating temperature | - | -30 | +85 | °C |
| Storage temperature | - | -55 | +125 | °C |
| ESD Susceptibility *2 | HBM | KV | ||
| MM | V | |||
1. Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
2. Device are ESD sensitive. Handling precaution recommended. The Human Body model is a 100pF capacitor discharged through a 1.5KΩ resistor into each pin
AT1391 Features
• High efficiency
• Using external P channel MOSFET
• Maximum Duty 100%
• Oscillation frequency 600KHz
• Soft Start by an external capacity
• Output voltage accuracy ±2%
• Built-in ON/OFF Function
• Built-in Short-circuit Protection
• Stand-by current max. 10µA
• Quiescent Current 1mA
• Input voltage: 2.5V ~7.0V
• Using external P channel MOSFET
• Maximum Duty 100%
• Oscillation frequency 600KHz
• Soft Start by an external capacity
• Output voltage accuracy ±2%
• Built-in ON/OFF Function
• Built-in Short-circuit Protection
• Stand-by current max. 10µA
• Quiescent Current 1mA
• Input voltage: 2.5V ~7.0V
AT1391 Typical Application
• Power Supply for portable devices
AT1391 Connection Diagram
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