onsemi CS5253B-1GDPR5G
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.48 | $3.48 |
| 15+ | $0.80 | $12.00 |
| 25+ | $0.78 | $19.50 |
| 50+ | $0.74 | $37.00 |
| 100+ | $0.65 | $65.00 |
| N+ | $0.13 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 13V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 5V |
| Voltage Dropout (Max) | 1.3V @ 3A |
| Current - Output | 3A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | - |
| PSRR | 80dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | 0°C ~ 70°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | D2PAK-5 |
The CS5253B-1GDPR5G from onsemi is a fixed 5V low dropout regulator designed for high-current applications up to 3A. It features a dropout voltage of 1.3V at full load, allowing operation from a 6.3V input. With a quiescent current of 10 mA and excellent PSRR of 80dB at 120Hz, it delivers clean, stable power. The D2PAK-5 package ensures efficient heat dissipation for demanding industrial and automotive environments.
- High Current Capacity: 3A output supports power-hungry digital loads without parallel regulators.
- Excellent Ripple Rejection: 80dB PSRR at 120Hz ensures clean 5V for noise-sensitive analog circuits.
- Thermally Efficient Package: D2PAK-5 dissipates heat effectively for reliable 3A operation.
- Simple Fixed Output: No external resistor divider needed, reducing BOM count.
High-Current 5V Logic Rails
With 3A output capability, it can power multiple digital ICs, FPGAs, or microcontrollers from a single regulated 5V rail, simplifying board design.
Post-Regulation for Switching Converters
The 80dB PSRR at 120Hz effectively attenuates ripple from a pre-regulator, providing clean 5V for analog and mixed-signal circuits.
Automotive Infotainment Systems
The D2PAK-5 package handles the thermal load of 3A in confined spaces, while the 5V rail powers USB hubs and display controllers.
Industrial Control Panels
Stable 5V for PLC I/O modules and sensor interfaces, with dropout margin ensuring reliable operation during brownout conditions.
Bench Power Supply Output Stage
As a final linear stage, it reduces noise and provides precise 5V regulation for sensitive test equipment.
Networking Equipment
Powers 5V PHY transceivers and switch ASICs, with high current capability for multi-port devices.
- Q: What is the output voltage of the CS5253B-1GDPR5G?
- A: The output voltage is fixed at 5V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of continuous output current.
- Q: What is the input voltage range?
- A: The reference voltage is 1.25V; the input voltage must be higher than 5V plus dropout. Refer to the datasheet for absolute maximums.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.3V at 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: It comes in a D2PAK-5 package.
- Q: What is the output voltage of the CS5253B-1GDPR5G?
- A: The output voltage is fixed at 5V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of continuous output current.
- Q: What is the input voltage range?
- A: The reference voltage is 1.25V; the input voltage must be higher than 5V plus dropout. Refer to the datasheet for absolute maximums.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.3V at 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: It comes in a D2PAK-5 package.

CS5253B-1GDPR5G.pdf