LP6201
概述
Designed for analog and digital satellite receivers/ sat - TV, the LP6220A is an adjustable voltage regulator, specifically to provide the 14V/19V power supply and the 22kHz tone signaling to the LNB converter in the antenna dish or to the multi-switch box.LP6220A consists of a BOOST converter with an internal power MOS running at 1MHz switching frequency and a LDO regulator which with push-pull output stage generates clean 22-kHz tone signal superimposed at the output even at zero loading. The EXTM can accept a DiSEqC command and transfer it symmetrically to the output to meet DiSEqC 1.x protocol.Other features include over temperature protection and under-voltage lockout (UVLO). The LP6220Ais available in a space saving ESOP-8 package.
应用
◆ LNB Power supply For DVB-S/S2/ABS
◆ Digital Set-Top-Box
◆ Satellite TV cards
◆ STB Satellite Receiver
◆ PC Card Satellite
◆ Digital Set-Top-Box
◆ Satellite TV cards
◆ STB Satellite Receiver
◆ PC Card Satellite
数据参数
数据参数
输入电压(V)
9.0~14
最高输出电压(V)
14/19
工作频率 (Hz)
1M
开关管电流(mA)
2200
欠压锁定
Yes
FB电压(V)
-
5V带载电流
-
特点
LNB power with 22K and LDO
封装
ESOP8
特征
特征
◆ Low noise output to avoid sensitivity of Can Tuner and DISH’s LNA dropping down
◆ Single chip solution on 700mVpp 22KHz EXTM with 10μ s Trise/Tfall for less Transferring noise
◆ LNB Voltages (14V/19V) compatible with common standards, Push-pull output stage minimizes 14→19V and 19V→14V output transition times
◆ External 22KHz EXTM input
◆ 1MHz Switch Frequency Boost
◆ Integrate Low Noise Linear Regulator
◆ Under Voltage Lockout
◆ Output Short-Circuit Protection
◆ Output Over-Current Protection
◆ Over-Temperature Protection
◆ Available in ESOP-8
◆ RoHS Compliant and Halogen Free
◆ Single chip solution on 700mVpp 22KHz EXTM with 10μ s Trise/Tfall for less Transferring noise
◆ LNB Voltages (14V/19V) compatible with common standards, Push-pull output stage minimizes 14→19V and 19V→14V output transition times
◆ External 22KHz EXTM input
◆ 1MHz Switch Frequency Boost
◆ Integrate Low Noise Linear Regulator
◆ Under Voltage Lockout
◆ Output Short-Circuit Protection
◆ Output Over-Current Protection
◆ Over-Temperature Protection
◆ Available in ESOP-8
◆ RoHS Compliant and Halogen Free
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