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LM5166Y bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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LM5166Y bảng dữ liệu(HTML) 1 Page - Texas Instruments |
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1 / 53 page  VOUT = 5 V SW VOUT HYS VIN EN SS GND RT PGOOD ILIM LM5166 COUT 47 PF CIN 2.2 PF VIN = 3V...65V IOUT = 500 mA LF 150 PH RRT RESR 0.5 : *VOUT tracks VIN if VIN < 5.5 V Copyright © 2016, Texas Instruments Incorporated Load (mA) 0.01 0.1 1 10 100 500 30 40 50 60 70 80 90 100 D001 VIN = 8V VIN = 12V VIN = 24V VIN = 36V VIN = 65V Product Folder Sample & Buy Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. LM5166 SNVSA67A – DECEMBER 2016 – REVISED DECEMBER 2016 LM5166 3-V to 65-V Input, 500-mA Synchronous Buck Converter with Ultra-Low IQ 1 1 Features 1 • Wide 3-V to 65-V Input Voltage Range • 9.7-µA No-Load Quiescent Current • -40°C to 150°C Junction Temperature Range • Meets EN55022 and CISPR 22 EMI Standards • Integrated 1-Ω PFET Buck Switch – Supports 100% Duty Cycle for Low Dropout • Integrated 0.5-Ω NFET Synchronous Rectifier – Eliminates External Schottky Diode • Programmable Peak Current Limit Supports: – 500 mA, 300 mA, or 200 mA Loads • Fixed (5 V, 3.3 V) or Adjustable VOUT Options • Two Selectable Control Options: – COT for Nearly Constant Frequency – PFM for Maximum Efficiency • 1.223-V ±1.2% Internal Voltage Reference • Switching Frequency up to 600 kHz • 900-µs Internal or Externally Adjustable Soft-Start • Diode Emulation and Pulse Skipping for Ultra- High Light-Load Efficiency • No Loop Compensation or Bootstrap Components • Precision Enable/Input UVLO with Hysteresis • Open-Drain Power Good Indicator • Thermal Shutdown Protection with Hysteresis • Pin-to-pin Compatible with the LM5165 • 10-Pin, 3-mm x 3-mm VSON Package 2 Applications • Industrial control systems • High voltage LDO replacement • Low power bias supplies • Automotive and battery-powered applications (1) For all available package, see the Package Option Addendum at the end of the datasheet. 3 Description The LM5166 is a compact, easy-to-use, 3-V to 65-V, ultra-low IQ synchronous buck converter with high efficiency over wide input voltage and load current ranges. With integrated high-side and low-side power MOSFETs, up to 500 mA of output current can be delivered at fixed output voltages of 3.3 V or 5 V, or an adjustable output. The converter is designed to simplify implementation while providing options to optimize the performance for the target application. Pulse Frequency Modulation (PFM) mode is selected for optimal light-load efficiency or Constant On-Time (COT) control for nearly constant operating frequency. Both control schemes do not require loop compensation while providing excellent line and load transient response and short PWM on-time for large step-down conversion ratios. The high-side p-channel MOSFET can operate at 100% duty cycle for lowest dropout voltage and does not require a bootstrap capacitor for gate drive. Also, the current limit setpoint is adjustable to optimize inductor selection for a particular output current requirement. Selectable/adjustable startup timing options include minimum delay (no soft-start), internally fixed (900 μs), and externally programmable soft-start via an external capacitor. An open-drain PGOOD indicator can be used for sequencing and output voltage monitoring. The LM5166 is available in a VSON-10 package with 0.5-mm pin pitch. To create a custom regulator design, use the LM5166 with WEBENCH® Power Designer. Device Information(1) ORDER NUMBER PACKAGE BODY SIZE (NOM) LM5166 VSON (10) 3 mm x 3 mm LM5166X LM5166Y Typical COT Mode Application Typical COT Mode Application Efficiency |
Số phần tương tự - LM5166Y |
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Mô tả tương tự - LM5166Y |
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