LM27761 Low-Noise, Regulated, Switched-Capacitor Voltage Inverter

1 Features • Inverts and regulates the input supply voltage • Low output ripple • Shutdown lowers quiescent current to 7μA (typical) • Up to 250mA output current • 2.5Ω inverter output impedance, VIN = 5V • ±4% regulation at peak load • 370μA quiescent current • 2MHz (typical) low-nois

文件：1.97471 Mbytes 页数：27 Pages

TI

德州仪器

Low-Noise Regulated Switched-Capacitor Voltage Inverter

文件：1.47615 Mbytes 页数：29 Pages

TI

德州仪器

具有集成 LDO 的低噪声稳压逆变器

LM27761 低噪声稳压开关电容器电压逆变器可针对 2.7V 到 5.5V 范围内的输入电压，提供可调节的超低噪声输出。在应用解决方案中使用四个低成本电容器，可以提供高达 250mA 的输出电流。该器件的稳压输出可在 −5V 到 −1.5V 范围内进行调节。LM27761 以 2MHz（典型值）开关频率运行，以减小输出电阻和电压波纹。LM27761 的工作电流仅为 370µA（对于大多数负载，电荷泵功率效率均高于 80%）并且关断电流典型值为 7µA，因此在驱动功率放大器、DAC 偏置电源轨以及其他大电流、低噪声电压应用时， 可提供理想的性能。 • 对输入电源电压进行反相和稳压\n• 低输出波纹\n• 关断时可使静态电流降至 7µA（典型值）\n• 输出电流高达 250mA\n• 2.5Ω 逆变器输出阻抗，VIN = 5V\n• 峰值负载时的稳定度为 ±4%\n• 370µA 静态电流 \n• 2MHz（典型值）固定频率、低噪声运行\n• 2MHz 频率时的低压降稳压器 (LDO) 电源抑制比 (PSRR) 为 35dB（典型值），负载电流为 80mA\n• 100mA 电流时的 LDO 压降电压为 30mV，VOUT = –5V\n• 限流和热保护\n• 使用 LM27761 并借助 WEBENCH® 电源设计器创建定制设计;

TI

德州仪器

丝印：ZGLI；Package：WSON(DSG)；LM27761 Low-Noise, Regulated, Switched-Capacitor Voltage Inverter

1 Features • Inverts and regulates the input supply voltage • Low output ripple • Shutdown lowers quiescent current to 7μA (typical) • Up to 250mA output current • 2.5Ω inverter output impedance, VIN = 5V • ±4% regulation at peak load • 370μA quiescent current • 2MHz (typical) low-nois

文件：1.97471 Mbytes 页数：27 Pages

TI

德州仪器

丝印：ZGLI；Package：WSON(DSG)；LM27761 Low-Noise, Regulated, Switched-Capacitor Voltage Inverter

1 Features • Inverts and regulates the input supply voltage • Low output ripple • Shutdown lowers quiescent current to 7μA (typical) • Up to 250mA output current • 2.5Ω inverter output impedance, VIN = 5V • ±4% regulation at peak load • 370μA quiescent current • 2MHz (typical) low-nois

文件：1.97471 Mbytes 页数：27 Pages

TI

德州仪器

丝印：ZGLI；Package：WSON(DSG)；LM27761 Low-Noise, Regulated, Switched-Capacitor Voltage Inverter

1 Features • Inverts and regulates the input supply voltage • Low output ripple • Shutdown lowers quiescent current to 7μA (typical) • Up to 250mA output current • 2.5Ω inverter output impedance, VIN = 5V • ±4% regulation at peak load • 370μA quiescent current • 2MHz (typical) low-nois

文件：1.97471 Mbytes 页数：27 Pages

TI

德州仪器

丝印：ZGLI；Package：WSON(DSG)；LM27761 Low-Noise, Regulated, Switched-Capacitor Voltage Inverter

1 Features • Inverts and regulates the input supply voltage • Low output ripple • Shutdown lowers quiescent current to 7μA (typical) • Up to 250mA output current • 2.5Ω inverter output impedance, VIN = 5V • ±4% regulation at peak load • 370μA quiescent current • 2MHz (typical) low-nois

文件：1.97471 Mbytes 页数：27 Pages

TI

德州仪器

丝印：ZGLI；Package：WSON(DSG)；LM27761 Low-Noise, Regulated, Switched-Capacitor Voltage Inverter

1 Features • Inverts and regulates the input supply voltage • Low output ripple • Shutdown lowers quiescent current to 7μA (typical) • Up to 250mA output current • 2.5Ω inverter output impedance, VIN = 5V • ±4% regulation at peak load • 370μA quiescent current • 2MHz (typical) low-nois

文件：1.97471 Mbytes 页数：27 Pages

TI

德州仪器

丝印：ZGLI；Package：WSON(DSG)；LM27761 Low-Noise, Regulated, Switched-Capacitor Voltage Inverter

1 Features • Inverts and regulates the input supply voltage • Low output ripple • Shutdown lowers quiescent current to 7μA (typical) • Up to 250mA output current • 2.5Ω inverter output impedance, VIN = 5V • ±4% regulation at peak load • 370μA quiescent current • 2MHz (typical) low-nois

文件：1.97471 Mbytes 页数：27 Pages

TI

德州仪器

丝印：ZGLI；Package：WSON(DSG)；LM27761 Low-Noise, Regulated, Switched-Capacitor Voltage Inverter

1 Features • Inverts and regulates the input supply voltage • Low output ripple • Shutdown lowers quiescent current to 7μA (typical) • Up to 250mA output current • 2.5Ω inverter output impedance, VIN = 5V • ±4% regulation at peak load • 370μA quiescent current • 2MHz (typical) low-nois

文件：1.97471 Mbytes 页数：27 Pages

TI

德州仪器