Allicdata Part #: | RT4805BWSCTR-ND |
Manufacturer Part#: |
RT4805BWSC |
Price: | $ 0.57 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Richtek USA Inc. |
Short Description: | IC BOOST 2.5MHZ WL-CSP-16 |
More Detail: | Boost Switching Regulator IC Positive Adjustable 2... |
DataSheet: | RT4805BWSC Datasheet/PDF |
Quantity: | 1000 |
3000 +: | $ 0.51704 |
6000 +: | $ 0.49789 |
Voltage - Input (Max): | 5V |
Supplier Device Package: | 16-WLCSP (1.67x1.67) |
Package / Case: | 16-UFBGA, WLCSP |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 85°C (TA) |
Synchronous Rectifier: | Yes |
Frequency - Switching: | 2.5MHz |
Current - Output: | 2A (Switch) |
Voltage - Output (Max): | 4.4V |
Voltage - Output (Min/Fixed): | 2.85V |
Series: | -- |
Voltage - Input (Min): | 1.8V |
Number of Outputs: | 1 |
Output Type: | Adjustable |
Topology: | Boost |
Output Configuration: | Positive |
Function: | Step-Up |
Part Status: | Active |
Packaging: | Tape & Reel (TR) |
Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us: sales@allicdata.com
RT4805BWSC is a device belonging to the family of DC-DC Switching Regulators and it is integrated into the family of voltage regulators in the PMIC (Power Management Integrated Circuits). It is commonly used for the applications in which stepping down the voltage is required to match the voltage supplied to the load. This circuit works on the principle of Pulse Width Modulation. Presently, According to the datasheet, it can go as low as 0.5V, and it can handle output voltages ranging from 1.5V to 24V. With the output current up to 2A and the operating temperature between -40 to 85 degree Celsius.
The RT4805BWSC has a wide input voltage range, which starts from 2V to 28V, making it a highly efficient voltage regulator. This voltage regulator can be used in applications like switching power supplies, battery chargers, DC-DC converters and other analog circuits. Generally, for achieving such a low voltage output, a FET (Field Effect Transistor) or even a MOSFET (Metal Oxide Semiconductor Field Effect Transistor) is used as switching element, which is powered by the integrated high-side MOSFET driver and controlled by a PWM Controller.
Operation of the RT4805BWSC consists of two steps, first being the regulate step and second being the pulse width modulation step. In the regulate step, the voltage regulator adjusts its output voltage by using a feedback loop. The loop contains a control circuit, an error amplifier integrated in the control circuit, and an outer feedback system to set the output voltage to a predetermined level. If the output voltage becomes higher, the error amplifier increases the current through the PWM OSC till it reaches the maximum. If the output voltage becomes lower, the error amplifier reduces the current till it reaches minimum. This means that by controlling the output voltage, the DC-DC converter can be used as either a buck converter or a boost converter.
In the Pulse Width Modulation step, the control circuit is connected to the PWM OSC, which receives the controller\'s output voltage and adjusts the switch ON and OFF times in order to regulate the output voltage. The PWM oscillator outputs high pulse when the error amplifier produces high output and low pulse when the error amplifier produces low output. This means that the PWM OSC reduces the amount of current flowing through the switching element when the output voltage reaches its lower limit and increases the amount of current flowing through the switching element when the output voltage reaches its upper limit.
The RT4805BWSC includes an adjustable soft-start circuitry, which quickly brings the converter up to the predetermined operating voltage without current spikes. The soft-start circuitry is used to reduce the inrush current during startup and protecting the power supply from voltage transient. Additionally, the device has an adjustable frequency, which reduces the switching noise in the DC-DC converter and improves the efficiency.
The RT4805BWSC is also equipped with overcurrent protection, undervoltage protection and thermal shutdown protection. This provides protection against excessive current and voltage that could potentially damage the load. It also guarantees a safe shutdown of the out circuit if it goes beyond the specified temperature or if any over voltage or over current condition occurs in the output circuit.
The RT4805BWSC is a highly reliable product due to its wide operating temperature range, exceptional output power handling and adjustable frequency. It is an ideal voltage regulator for applications that requires a wide input voltage range, high output voltage accuracy and high efficiency. This voltage regulator is also suitable for applications including battery management, home appliance controllers and AC-DC converters.
The specific data is subject to PDF, and the above content is for reference
Part Number | Manufacturer | Price | Quantity | Description |
---|
RT4832AWSC | Richtek USA ... | 1.41 $ | 1000 | IC SUB PMIC WL-CSP-30LED ... |
RT4801HWSC | Richtek USA ... | 0.69 $ | 1000 | IC LCD BIAS WL-CSP-15B* ... |
RT48 GRN 50ML | 3M | 22.39 $ | 1000 | SCOTCH-WELD PRESSURE FIT/... |
RT48 GRN 250ML | 3M | 79.95 $ | 1000 | SCOTCH-WELD PRESSURE FIT/... |
RT4812GJ8F | Richtek USA ... | 0.48 $ | 1000 | IC REG BST ADJ SYNC 2A TS... |
RT4805BWSC | Richtek USA ... | 0.57 $ | 1000 | IC BOOST 2.5MHZ WL-CSP-16... |
RT4813CGQUF | Richtek USA ... | 0.57 $ | 1000 | IC REG BOOST ADJ 3.1A UQF... |
RT4805AWSC | Richtek USA ... | 0.6 $ | 1000 | IC REG BOOST ADJ 2A SYNC ... |
RT4805WSC | Richtek USA ... | 0.6 $ | 1000 | IC BOOST 2.5MHZ WL-CSP-16... |
RT4803WSC | Richtek USA ... | 0.65 $ | 1000 | IC REG BOOST ADJ 2A SYNC ... |
RT4803AWSC | Richtek USA ... | 0.65 $ | 1000 | IC REG BOOST ADJ 2A SYNC ... |
RT4813GQUF | Richtek USA ... | 0.67 $ | 1000 | IC REG BOOST ADJ 3.1A SYN... |
RT4813AGQUF | Richtek USA ... | 0.67 $ | 1000 | IC REG BOOST ADJ 2.5A SYN... |
CAF95961(ID2450-RT48) | Laird Techno... | 32.03 $ | 1000 | ANT WHISPER 2.4G 48" RG14... |
IC REG BUCK 5V 1A 24-SOICBuck Switching ...
IC REG BUCK 1.375V 0.6A SOT23Buck Switch...
IC REG BUCK 12V 1A TO263-7Buck Switching...
IC REG MULTI CONFIG 15V 3A TO220Boost, F...
IC REG BUCK 12V 8A TO-220FLBuck Switchin...
IC REG SWITCHD CAP RATIO SOT23Charge Pum...