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TI LM5146RGYR
Switching Controllers 100-V synchronous buck DC/DC controller with wide duty-cycle range 20-VQFN -40 to 150
Brands: TI
Mfr.Part #: LM5146RGYR
Datasheet: LM5146RGYR Datasheet (PDF)
Package/Case: VQFN-20
RoHS Status:
Stock Condition: 21,000 pcs, New Original
Product Type: DC DC Switching Controllers
Warranty: 1 Year Ovaga Warranty - Find Out More
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*All prices are in USD
| Qty | Unit Price | Ext Price |
|---|---|---|
| 1 | $2.111 | $2.111 |
| 10 | $1.805 | $18.050 |
| 30 | $1.614 | $48.420 |
| 100 | $1.431 | $143.100 |
| 500 | $1.342 | $671.000 |
| 1000 | $1.304 | $1304.000 |
In Stock: 21,000 PCS
LM5146RGYR General Description
The LM5146 100-V synchronous buck controller regulates from a high input voltage source or from an input rail subject to high-voltage transients, minimizing the need for external surge suppression components. A high-side switch minimum on-time of 40 ns gives large step-down ratios, enabling the direct step-down conversion from a 48-V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM5146 continues to operate during input voltage dips as low as 5.5 V, at nearly 100% duty cycle if needed, making it an excellent choice for high-performance industrial controls, robotics, datacom, and RF applications.
Forced-PWM (FPWM) operation eliminates switching frequency variation to minimize EMI, while user-selectable diode emulation lowers current consumption at light-load conditions. The adjustable switching frequency as high as 1 MHz can be synchronized to an external clock source to eliminate beat frequencies in noise-sensitive applications.
Features
- Functional Safety-Capable
- Documentation available to aid functional safety system design
- Versatile synchronous buck DC/DC controller
- Wide input voltage range of 5.5 V to 100 V
- 150°C maximum junction temperature
- 0.8-V reference with ±1% feedback accuracy
- Adjustable output voltage from 0.8 V to 60 V
- 40-ns tON(min) for high VIN / VOUT ratio
- 140-ns tOFF(min) for low dropout
- Lossless RDS(on) or shunt current sensing
- Optimized for CISPR 11 and CISPR 32 Class B EMI requirements
- Switching frequency from 100 kHz to 1 MHz
- SYNC in and SYNC out capability
- Selectable diode emulation or FPWM
- 7.5-V gate drivers for standard VTH MOSFETs
- 14-ns adaptive dead-time control
- 2.3-A source and 3.5-A sink capability
- Fast line and load transient response
- Voltage-mode control with line feedforward
- High gain-bandwidth error amplifier
- Inherent protection features for robust design
- Adjustable output voltage soft start
- Hiccup-mode overcurrent protection
- Input UVLO with hysteresis
- VCC and gate-drive UVLO protection
- Precision enable input and open-drain PGOOD indicator for sequencing and control
- Thermal shutdown protection with hysteresis
- 20-pin VQFN package with wettable flanks
- Create a custom design using the LM5146 with WEBENCH Power Designer
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Vin (min) (V) | 5.5 | Vin (max) (V) | 100 |
| Vout (min) (V) | 0.8 | Vout (max) (V) | 60 |
| Iout (max) (A) | 20 | Iq (typ) (mA) | 1.8 |
| Switching frequency (min) (kHz) | 100 | Switching frequency (max) (kHz) | 1000 |
| Features | Adjustable current limit, Enable, Frequency synchronization, Load Disconnect, Output discharge, Power good, Pre-Bias Start-Up, Synchronous Rectification, UVLO adjustable | Operating temperature range (°C) | -40 to 150 |
| Regulated outputs (#) | 1 | TI functional safety category | Functional Safety-Capable |
| Rating | Catalog | Control mode | Voltage mode |
| Type | Controller |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
 |
Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Part points
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The LM5146RGYR is a highly integrated, synchronous buck controller chip used for step-down voltage regulation in various applications. It incorporates a wide input voltage range, adjustable switching frequency, and a comprehensive set of protections. With its compact size and efficient performance, the LM5146RGYR chip is commonly used in power supply modules, battery chargers, industrial equipment, and automotive systems.
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Equivalent
There are no direct equivalents of the LM5146RGYR chip. However, possible alternatives for power management applications could include the LM5164, LM5143-Q1, or the LM5145-Q1 chips, each with their own specifications and features. -
Features
The LM5146RGYR is a synchronous buck-boost controller IC. It features integrated high-side and low-side power MOSFETs, operates over a wide input voltage range of 3.5V to 60V, and can deliver up to 4A of continuous output current. It has a programmable switching frequency, adjustable soft-start, and various protection features like overvoltage, undervoltage, and overcurrent protection. -
Pinout
The LM5146RGYR is a 48-pin integrated circuit. It is a synchronous buck controller designed for high voltage, wide input range applications. Its functions include regulating the output voltage, providing adjustable frequency control, and integrating protection features like Over Voltage Protection (OVP), Under Voltage Lockout (UVLO), and Over Temperature Protection (OTP). -
Manufacturer
The manufacturer of the LM5146RGYR is Texas Instruments. Texas Instruments is a global semiconductor company that designs and manufactures a wide range of integrated circuits and devices for various applications, including analog and digital solutions for automotive, industrial, and consumer electronics markets. -
Application Field
The LM5146RGYR is a high-performance, synchronous buck-boost controller designed for a variety of applications requiring a wide input voltage range, such as automotive systems, battery charging, LED lighting, and industrial power supplies. -
Package
The LM5146RGYR chip is available in a VQFN-28 package type, with a form factor of Quad Flat No-Lead. The dimensions of the package are approximately 5mm x 5mm.
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