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| Parameter | Symbol | Conditions | Min | Typical | Max | Unit |
|---|---|---|---|---|---|---|
| Input Voltage | VIN | Continuous | 4.5 | - | 20 | V |
| Output Voltage | VOUT | Fixed | - | 3.3 | - | V |
| Output Current | IOUT | Continuous | - | - | 1.5 | A |
| Dropout Voltage | VDROPOUT | IOUT = 1.5A | - | 1.2 | - | V |
| Quiescent Current | IQ | VIN = 5V, VOUT = 3.3V | - | 5 | - | mA |
| Shutdown Current | ISD | VIN = 5V, SHDN = 0V | - | 0.1 | - | μA |
| Thermal Shutdown | TSD | - | - | 160 | - | °C |
| Operating Temperature | TOPR | - | -40 | - | 85 | °C |
| Storage Temperature | TSTG | - | -65 | - | 150 | °C |
Input Voltage:
Output Voltage:
Output Current:
Dropout Voltage:
Quiescent Current:
Shutdown Current:
Thermal Shutdown:
Operating Temperature:
Storage Temperature:
PCB Layout:
Capacitors:
Shutdown Pin:
Handling:
Preview of the first 3 pages of the data sheet
| QUANTITY | UNIT PRICE | PLUS UNIT PRICE | TOTAL PRICE |
|---|---|---|---|
| ≥1: | US $0.24822 | US $0.22340 | US $0.22340 |
The parameters and performance indicators of this product are sourced from the internet. In case of discrepancies, please refer to the manufacturer's technical specifications!！
Substitute Product
| Product Name | Description |
|---|---|
| KIA78M33AF | 3.3V 1A Linear Voltage Regulator, TO-252 Package |
| LM7833 | 3.3V 1A Linear Voltage Regulator, TO-220 Package |
| KA7833 | 3.3V 1A Linear Voltage Regulator, TO-220 Package |
| 78L33 | 3.3V 100mA Low Dropout Linear Voltage Regulator, TO-92 Package |
| L78L33 | 3.3V 100mA Low Dropout Linear Voltage Regulator, TO-220 Package |
Product Usage
The KIA78D33AF is a type of linear voltage regulator, specifically a 3-terminal positive voltage regulator that outputs a fixed 3.3V. This component is commonly used in various circuits where a stable and clean 3.3V power supply is required. Here are some typical applications and circuits where you might find the KIA78D33AF:
Microcontroller Circuits: Many microcontrollers, such as those from the ARM Cortex-M series, require a 3.3V power supply. The KIA78D33AF can provide this stable voltage to ensure reliable operation.
Sensor Modules: Sensors like temperature sensors, humidity sensors, and other analog or digital sensors often need a 3.3V supply. The KIA78D33AF can be used to power these modules.
Low-Power Electronics: Devices that operate on battery power and require a 3.3V supply can benefit from the low dropout (LDO) characteristics of the KIA78D33AF, which helps in extending battery life.
Communication Interfaces: UART, SPI, I2C, and other communication interfaces often require a 3.3V supply for level shifting or direct power. The KIA78D33AF can provide the necessary voltage.
RF Modules: Radio frequency (RF) modules, such as Bluetooth, Wi-Fi, and Zigbee, typically operate at 3.3V. The KIA78D33AF can supply the required voltage with minimal noise.
Power Supply for Digital Logic: TTL and CMOS logic circuits often require a 3.3V supply. The KIA78D33AF can provide a stable voltage to these circuits.
Embedded Systems: In embedded systems where multiple components require a 3.3V supply, the KIA78D33AF can be used to regulate the power from a higher voltage source (e.g., 5V or 12V).
Here is a simple example of how the KIA78D33AF can be used in a circuit:
Required+Vin (5V) ----|---- [KIA78D33AF] ----|---- +3.3V
| |
--- ---
GND GND
For better performance, you might want to add capacitors to the input and output to filter out noise and stabilize the voltage:
+Vin (5V) ----|---- [10μF Capacitor] ----|---- [KIA78D33AF] ----|---- [10μF Capacitor] ----|---- +3.3V
| | |
--- --- ---
GND GND GND
By using the KIA78D33AF in these circuits, you can ensure that your devices receive a stable and reliable 3.3V power supply.
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Warranty
All UTSOURCE purchases have a 90 days money back return policy, plus a 100 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
KIA78D33AF
KIA78D33AF has several brands around the world that may have alternate names for KIA78D33AF due to regional differences or acquisition. KIA78D33AF may also be known as the following names:
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