价 格: | 面议 | |
型号/规格: | LM2674 | |
品牌/商标: | NS |
SIMPLE SWITCHER® Power Converter High Efficiency 500 mA Step-Down Voltage Regulator。
Features
■ Efficiency up to 96%
■ Available in SO-8, 8-pin DIP and LLP packages
■ Computer Design Software LM267X Made Simple
(version 6.0)
■ Simple and easy to design with
■ Requires only 5 external components
■ Uses readily available standard inductors
■ 3.3V, 5.0V, 12V, and adjustable output versions
■ Adjustable version output voltage range: 1.21V to 37V
■ ±1.5% max output voltage tolerance over line and load
conditions
■ Guaranteed 500mA output load current
■ 0.25Ω DMOS Output Switch
■ Wide input voltage range: 8V to 40V
■ 260 kHz fixed frequency internal oscillator
■ TTL shutdown capability, low power standby mode
■ Thermal shutdown and current limit protection
Features• Advanced GaAs E-pHEMT• Low Noise: 0.8 dB typ• High Gain : 14.3 dB typ• Low component count• High IIP3 and IP1dB• Wide Supply Voltage: 1V to 3.6V• Shutdown current : < 0.1uA• CMOS compatible shutdown pin(VSD) current @ 2.85V : 90uA• Adjustable bias current via onesingle external resistor/voltage• Small Footprint: 2x2mm2• Low Profile: 1.1mm typ• Ext matching for non-GPS freqband operationSpecifications (25 deg):At 1.575GHz, 2.85V 8mA (Typ)• Gain = 14.3 dB (Typ)• NF = 0.8 dB (Typ)• IIP3 = 4.7 dBm (Typ)• IP1dB = 1.8 dBm (Typ)• S11 = -11.8 dB (Typ)• S22 = -12.4 dB (Typ)Typical performance @ 1.0V supplyS21 = 12.3dBNF = 1.0dBIds = 3.6mA