含 5V/3.3V LDO 的双通道同步 Buck 控制器

RT8230A/B/C/D/E 是双通道 Buck 控制器，用于为电池供电的系统生成稳定的电压。其中包含两组输出电压 2V~5.5V 可调的 PWM 控制器和两组固定 5V/3.3V 输出的线性稳压器，每组线性稳压器可输出最大 100mA 的电流，5V 线性稳压器为 PWM 驱动器提供电源。RT8230A/B/C/D/E 具有片内上电时序管理功能、Power Good 输出、内部软启动功能，还有输出端关机软放电功能避免负电压的出现。\n\n它采用固定导通时间控制技术，没有电流检测电阻，对负载瞬变具有 100ns 快速响应能力。为了消除音频应用噪声，还具有超声工作模式，可将工作频率维持在 25k • 最高责任周期达 96%\n• 5V~25% 输入电压范围\n• 3.3V/5V LDO 输出能力：100mA\n• 经 TON 设定频率可调\n• 可调电流限制与使能控制使用同一端子\n• 热关机保护\n• 符合 RoHS 规范，不含卤素;

Richtek

立锜科技

0.5 and 4.0 Amp ISOdrivers (2.5 and 5 kVRMS)

KEY FEATURES • Two completely isolated drivers in one package • Up to 5 kVRMS input-to-output isolation • Up to 1500 VDC peak driver-to-driver differential voltage • HS/LS and dual driver versions • Up to 8 MHz switching frequency • 0.5 A peak output (Si8230/1/2/7) • 4.0 A peak output (Si

文件：1.23302 Mbytes 页数：58 Pages

SKYWORKS

思佳讯

0.5 and 4.0 Amp ISOdrivers (2.5 and 5 kVRMS)

KEY FEATURES • Two completely isolated drivers in one package • Up to 5 kVRMS input-to-output isolation • Up to 1500 VDC peak driver-to-driver differential voltage • HS/LS and dual driver versions • Up to 8 MHz switching frequency • 0.5 A peak output (Si8230/1/2/7) • 4.0 A peak output (Si

文件：1.23302 Mbytes 页数：58 Pages

SKYWORKS

思佳讯

Tone Dialer with Built-in Piezo Driver

OVERVIEW The SM8230A is a dual-tone signal generator LSI developed for DTMF (dual tone multi-frequency) dialing. It features a built-in piezo-electric speaker driver for direct connection to a piezo-electric buzzer. The DTMF frequencies can be set to correspond to the DTMF standards of any count

文件：56.31 Kbytes 页数：7 Pages

NPC