LM51772 55V 4-Switch Buck-Boost Controller with I2C interface

1 Features • Input range from 3.5V to 55V • Output voltage 3.3V to 55V • Dynamical Vo programming via I2C from 3.3V – up to 48V in 20mV monotonous steps – up to 24V in 10mV monotonous steps • Peak current regulation scheme • Small voltage transition ripple over all operating modes • Dynam

文件：2.80407 Mbytes 页数：103 Pages

TI

德州仪器

LM251772-Q1 36V VIN4 Switch Buck-Boost Controller With I2C for

1 Features • Input range from 3.5V to 36V • Dynamical Vo programming using I2C from: – 3.3V up to in 20mV monotonous steps – 1V up to 23V in 10mV monotonous steps • Peak current regulation control • Small voltage transition ripple overall operating modes • Dynamic output voltage tracking (

文件：4.28138 Mbytes 页数：112 Pages

TI

德州仪器

LM51770-Q1 80V Wide VIN Bidirectional 4-Switch Buck-Boost Controller

1 Features • Wide input range from 3.5V to 80V (85V absolute maximum) – Minimum 2.8V when V(BIAS) > 3.5V • Output voltage from 3.3V to 78V • Low shutdown IQ of 3μA • Low operating IQ of 60μA • 3% reverse current limit accuracy for precise charging currents • Average input and output c

文件：2.78954 Mbytes 页数：70 Pages

TI

德州仪器

LM51772-Q1 55V 4-Switch Buck-Boost Controller with I2C interface

1 Features • Input range from 0V (V(BIAS) ≥ 3.5V) to 55V • Output voltage 1V to 55V • Dynamical Vo programming via I2C from: – 3.3V up to 48V in 20mV steps – 1V up to 24V in 10mV steps • Peak current regulation control • Small voltage transition ripple overall operating modes • Shut down

文件：4.29541 Mbytes 页数：120 Pages

TI

德州仪器

LM51772-Q1 55V 4-Switch Buck-Boost Controller with I2C interface

1 Features • Input range from 0V (V(BIAS) ≥ 3.5V) to 55V • Output voltage 1V to 55V • Dynamical Vo programming via I2C from: – 3.3V up to 48V in 20mV steps – 1V up to 24V in 10mV steps • Peak current regulation control • Small voltage transition ripple overall operating modes • Shut down

文件：4.29541 Mbytes 页数：120 Pages

TI

德州仪器

LM51772-Q1 55V 4-Switch Buck-Boost Controller with I2C interface

1 Features • Input range from 0V (V(BIAS) ≥ 3.5V) to 55V • Output voltage 1V to 55V • Dynamical Vo programming via I2C from: – 3.3V up to 48V in 20mV steps – 1V up to 24V in 10mV steps • Peak current regulation control • Small voltage transition ripple overall operating modes • Shut down

文件：4.29541 Mbytes 页数：120 Pages

TI

德州仪器

丝印：LM51772QRHARQ1；Package：VQFN(RHA)；LM51772-Q1 55V 4-Switch Buck-Boost Controller with I2C interface

1 Features • Input range from 0V (V(BIAS) ≥ 3.5V) to 55V • Output voltage 1V to 55V • Dynamical Vo programming via I2C from: – 3.3V up to 48V in 20mV steps – 1V up to 24V in 10mV steps • Peak current regulation control • Small voltage transition ripple overall operating modes • Shut down

文件：4.29541 Mbytes 页数：120 Pages

TI

德州仪器

LM51772 55V 4-Switch Buck-Boost Controller with I2C interface

1 Features • Input range from 3.5V to 55V • Output voltage 3.3V to 55V • Dynamical Vo programming via I2C from 3.3V – up to 48V in 20mV monotonous steps – up to 24V in 10mV monotonous steps • Peak current regulation scheme • Small voltage transition ripple over all operating modes • Dynam

文件：2.80407 Mbytes 页数：103 Pages

TI

德州仪器

78V 宽 VIN 双向 4 开关降压/升压控制器

The LM51770-Q1 is a four switch buck-boost controller. The device provides a regulated output voltage if the input voltage is higher, equal, or lower than the adjusted output voltage. In power save mode, the device supports high efficiency with low output loads due to its low quiescence currents. In Wide input range from 3.5V to 80V (85V absolute maximum) \n \nMinimum 2.8V when V(BIAS) > 3.5V\n \n\n \nOutput voltage from 3.3V to 78V\n \nLow shutdown IQ of 3µA\n \nLow operating IQ of 60µA\n \n3% reverse current limit accuracy for precise charging currents\n \nAverage input and output current;

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德州仪器

具有 I2C 接口的 55V 宽 VIN 四开关降压/升压控制器

LM51772 是一款四开关降压/升压控制器。无论输入电压是高于、等于还是低于调节后的输出电压，该器件均可提供稳定的输出电压。在省电模式下，该器件支持在整个输出工作范围内实现非常高的效率。 LM51772 以固定的开关频率运行，该频率可通过 RT/SYNC 引脚进行设置。在强制 PWM 下的降压、升压和降压/升压运行期间，开关频率保持恒定。外部补偿引脚可针对不同应用实现非常快速的瞬态响应。（续） • 输入范围为 3.5V 至 55V（绝对最大值57V）\n• 通过 I 2C 进行动态 V o 编程，范围为 3.3V \n• 至 24V， 单调阶跃为 10mV\n• 峰值电流调节方案\n• 动态输出电压跟踪（数字 PWM 跟踪输入、模拟跟踪输入） \n• 关断静态电流为 3µA\n• 用于外部 FET 控制的 DRV 引脚\n• 省电模式（突发/µSleep）\n• 集成高压电源 LDO\n• 集成式全桥栅极驱动 \n• 自举过压和欠压保护\n• 独立于工作模式（升压、降压/升压、降压）的固定频率 \n• 开关频率范围为 100kHz 至 2.2MHz\n• 可选展频运行\n• 可在 1;

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德州仪器