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AAT1118-T1-T
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Especificações
| Atributo | Valor |
| Manufacturer | Advanced Analog Technology |
| Package / Case | TSSOP-16 |
Visão Geral
Description
The AAT1118-T1-T is a 1A, 28V step-down (buck) DC-DC converter from Diodes Incorporated. It features high efficiency (up to 95%), a wide input voltage range (4.5V–28V), and a fixed or adjustable output voltage (down to 0.8V).
Key highlights:
- 1A continuous output current
- 1.5MHz switching frequency (enables small external components)
- Integrated power MOSFETs (reduces PCB footprint)
- Low quiescent current (40µA) for power-saving modes
- Protections: Overcurrent, thermal shutdown, and undervoltage lockout
Ideal for portable devices, IoT, and industrial applications requiring compact, efficient power conversion. Available in a SOT23-5 package for space-constrained designs.
For detailed specs, refer to the datasheet.
Key highlights:
- 1A continuous output current
- 1.5MHz switching frequency (enables small external components)
- Integrated power MOSFETs (reduces PCB footprint)
- Low quiescent current (40µA) for power-saving modes
- Protections: Overcurrent, thermal shutdown, and undervoltage lockout
Ideal for portable devices, IoT, and industrial applications requiring compact, efficient power conversion. Available in a SOT23-5 package for space-constrained designs.
For detailed specs, refer to the datasheet.
Equivalent
The AAT1118-T1-T is a 1A step-down DC-DC converter. Equivalent alternatives include:
- AP2112K-3.3TRG1 (3.3V fixed output)
- RT9193-33GB (3.3V LDO, lower current)
- MP2307DN (adjustable, higher current)
- TPS62260DBVT (similar step-down converter)
Check voltage, current, and package compatibility before substitution. For exact replacements, consult datasheets or distributors like Digi-Key or Mouser.
- AP2112K-3.3TRG1 (3.3V fixed output)
- RT9193-33GB (3.3V LDO, lower current)
- MP2307DN (adjustable, higher current)
- TPS62260DBVT (similar step-down converter)
Check voltage, current, and package compatibility before substitution. For exact replacements, consult datasheets or distributors like Digi-Key or Mouser.
Features
The AAT1118-T1-T is a 1A, 28V step-down (buck) DC-DC converter with the following key features:
- Input Voltage Range: 4.5V to 28V
- Output Voltage: Adjustable from 0.8V to 24V
- High Efficiency (up to 95%) with synchronous rectification
- Fixed 500kHz switching frequency for stable performance
- Low Quiescent Current (40µA) in shutdown mode
- Integrated Power MOSFETs (no external FETs needed)
- Protections: Overcurrent, thermal shutdown, and undervoltage lockout (UVLO)
- Compact TSOT23-5 Package for space-constrained designs
Ideal for portable devices, industrial systems, and automotive applications requiring efficient power conversion.
- Input Voltage Range: 4.5V to 28V
- Output Voltage: Adjustable from 0.8V to 24V
- High Efficiency (up to 95%) with synchronous rectification
- Fixed 500kHz switching frequency for stable performance
- Low Quiescent Current (40µA) in shutdown mode
- Integrated Power MOSFETs (no external FETs needed)
- Protections: Overcurrent, thermal shutdown, and undervoltage lockout (UVLO)
- Compact TSOT23-5 Package for space-constrained designs
Ideal for portable devices, industrial systems, and automotive applications requiring efficient power conversion.
Pinout
The AAT1118-T1-T is a 5-pin SOT-23 packaged synchronous step-down DC-DC converter.
Pin Functions:
1. VIN – Input voltage (2.7V to 5.5V).
2. GND – Ground.
3. EN – Enable control (high = on, low = off).
4. SW – Switching node (connects to inductor).
5. FB – Feedback pin (sets output voltage via resistor divider).
It delivers up to 600mA output current with high efficiency and operates at 1.5MHz switching frequency.
Pin Functions:
1. VIN – Input voltage (2.7V to 5.5V).
2. GND – Ground.
3. EN – Enable control (high = on, low = off).
4. SW – Switching node (connects to inductor).
5. FB – Feedback pin (sets output voltage via resistor divider).
It delivers up to 600mA output current with high efficiency and operates at 1.5MHz switching frequency.
Application
The AAT1118-T1-T is a 500mA low-dropout (LDO) linear regulator commonly used in:
1. Portable Electronics – Power management in smartphones, tablets, and wearables.
2. IoT Devices – Stable voltage supply for sensors and microcontrollers.
3. Consumer Electronics – Used in cameras, audio devices, and small appliances.
4. Embedded Systems – Provides reliable power to low-power processors and peripherals.
5. Medical Devices – Ensures stable voltage in compact medical equipment.
Its low quiescent current (45µA typical) and small package (SOT-23-5) make it ideal for space-constrained, battery-powered applications.
1. Portable Electronics – Power management in smartphones, tablets, and wearables.
2. IoT Devices – Stable voltage supply for sensors and microcontrollers.
3. Consumer Electronics – Used in cameras, audio devices, and small appliances.
4. Embedded Systems – Provides reliable power to low-power processors and peripherals.
5. Medical Devices – Ensures stable voltage in compact medical equipment.
Its low quiescent current (45µA typical) and small package (SOT-23-5) make it ideal for space-constrained, battery-powered applications.
Package
The AAT1118-T1-T is a SOT-23-5 package type. This small, surface-mount package is commonly used for low-power DC-DC converters and other compact IC applications. It features five pins and is designed for space-constrained designs. The SOT-23-5 is known for its small footprint and ease of assembly in PCB layouts.
