Texas Instruments LM4600x/LM4600x-Q1 Step-Down Voltage Converter
Texas Instruments LM4600x/LM4600x-Q1 SIMPLE SWITCHER® Regulators are an easy-to-use synchronous step-down DC-DC converter capable of driving up to 2A of load current from an input voltage range of 3.5V to 60V. The LM4600x/LM4600x-Q1 provides exceptional efficiency, output accuracy, and drop-out voltage in a very small solution size. Peak current-mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft-start, extendable soft-start, and tracking provide a flexible and easy-to-use platform for various applications. Discontinuous conduction and automatic frequency modulation at light loads improve light load efficiency. The Texas Instruments LM4600x/LM4600x-Q1 requires few external components, and pin arrangement allows a simple optimum PCB layout. Protection features include thermal shutdown, VCC under-voltage lockout, cycle-by-cycle current limit, and output short circuit protection.Features
- 24µA or 27µA quiescent current in regulation
- High efficiency at light load (DCM and PFM)
- Meets EN55022/CISPR 22 EMI standards
- Integrated synchronous rectification
- 200kHz to 2.2MHz (500kHz default) adjustable frequency range
- Frequency synchronization to an external clock
- Stable with almost any combination of Ceramic, Polymer, Tantalum, and Aluminum Capacitors
- Internal compensation
- Power-Good flag
- Soft-Start into a pre-biased load
- 4.1ms internal soft-start
- Extendable soft-start time by an external capacitor
- Output voltage tracking capability
- A precision enable to program system UVLO
- Output short circuit protection with hiccup mode
- Over-temperature thermal shutdown protection
Applications
- Industrial power supplies
- Telecommunications systems
- Sub-AM band automotive
- Commercial vehicle power supplies
- General purpose wide VIN regulation
- High-efficiency Point-of-Load (PoL) regulation
Videos
Simplified Schematic
View Results ( 15 ) Page
| 零件編號 | 規格書 | 輸出電壓 | 輸出電流 | 交換頻率 | 靜止電流 | 運作供電電流 |
|---|---|---|---|---|---|---|
| LM46001PWPT | ![]() |
1 V to 28 V | 1 A | 2.2 MHz | 24 uA | 24 uA |
| LM46002AQPWPRQ1 | ![]() |
1 V to 28 V | 2 A | 200 kHz to 2.2 MHz | 27 uA | |
| LM46001AQPWPRQ1 | ![]() |
1 V to 28 V | 1 A | 500 kHz | 24 uA | |
| LM46000PWP | ![]() |
1 V to 28 V | 500 mA | 2.2 MHz | 24 uA | 24 uA |
| LM46001PWP | ![]() |
1 V to 28 V | 1 A | 2.2 MHz | 24 uA | 24 uA |
| LM46000AQPWPRQ1 | ![]() |
1 V to 28 V | 500 mA | 500 kHz | 7 uA, 24 uA, 85 uA | |
| LM46001PWPR | ![]() |
1 V to 28 V | 1 A | 2.2 MHz | 24 uA | 24 uA |
| LM46002AQPWPTQ1 | ![]() |
1 V to 28 V | 2 A | 200 kHz to 2.2 MHz | 27 uA | |
| LM46002PWPR | ![]() |
1 V to 28 V | 2 A | 2.2 MHz | 27 uA | 27 uA |
| LM46002PWPT | ![]() |
1 V to 28 V | 2 A | 2.2 MHz | 27 uA | 27 uA |
發佈日期: 2014-08-29
| 更新日期: 2025-03-05

