Datasheet Details
| Part number | AAT1277 |
|---|---|
| Manufacturer | Advanced Analog Technology |
| File Size | 872.91 KB |
| Description | MULTI-CHANNEL POWER SUPPLY |
| Datasheet | AAT1277-AdvancedAnalogTechnology.pdf |
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Overview: Advanced Analog Technology, Inc. November 2015 AAT1277 Product information presented is for internal use within AAT Inc. only.
| Part number | AAT1277 |
|---|---|
| Manufacturer | Advanced Analog Technology |
| File Size | 872.91 KB |
| Description | MULTI-CHANNEL POWER SUPPLY |
| Datasheet | AAT1277-AdvancedAnalogTechnology.pdf |
|
|
|
2.5V to 5.5V Input Supply Voltage Range Fully I2C Interface Control Current Mode Boost Regulator for VAVDD 3.6V to 12.7V Output Voltage Range Current Mode Boost Regulator for VGH 10V to 37V Output Voltage Range Temperature pensation (T/C) Alternative Buck Regulator or Low Dropout Linear Regulator for V25 1.5V to 3.0V Output Voltage Range Negative Charge Pump Linear Regulator for VGL -4.5V to -8.0V Output Voltage Range Unit-Gain Buffer for V 7 Bits, 128-Step Adjustable Sink Current Output ±200mA Short-Circuit Current 12V/μs Slew Rate Temperature pensation (T/C) Two Operational Amplifier ±120mA Short-Circuit Current 12V/μs Slew Rate Gate Pulse Modulation (GPM) RESET Output (XAO) Open Drain Output Protection Over Voltage Protection (OVP) Under Voltage Protection (UVP) Short Circuit Protection (SCP) Over Temperature Protection (OTP) WQFN 28-3.5mmX5.5mmX0.75mm Package The AAT1277 is a highly integrated power management IC for TFT LCD panels.
The device consists of two current mode boost regulators, a current mode buck regulator or a low dropout linear regulator alternatively, a negative charge pump linear regulator, a gate pulse modulation, a reset function, a unit-gain V buffer and two operational amplifiers.
The AAT1277 also includes I2C interface for setting various parameters such as each regulator’s output voltage, switching frequency, soft start time, delay times, etc.
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