LM8801 - 用于移动应用的高精度 6MHz、600 mA 同步降压 DC-DC 转换器

LM8801是TI德州仪器公司的一款转换器（集成开关）产品，LM8801是用于移动应用的高精度 6MHz、600 mA 同步降压 DC-DC 转换器，本站介绍了LM8801的封装应用图解、特点和优点、功能等，并给出了与LM8801相关的TI元器件型号供参考。

LM8801 - 用于移动应用的高精度 6MHz、600 mA 同步降压 DC-DC 转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The LM8801 step-down DC-DC converter is optimized for powering ultra-low voltage circuits from a single Li-Ion cell and input voltage rails from 2.3V to 5.5V. It provides up to 600 mA load current over the entire input voltage range.

The LM8801 has a mode-control pin that allows the user to select continuous PWM operation over the complete load range or an auto PFM-PWM mode that changes modes automatically depending on the load. During PWM mode, the device operates at a fixed-frequency of 6 MHz (typ.). In Auto PFM-PWM mode, hysteretic PFM extends the battery life through reduction of the quiescent current during light loads and system standby.

The LM8801 is available in a 6-bump DSBGA package. Only three compact external surface-mount components, an inductor and two capacitors, are required.

产品特性

Over 90% Efficiency at 6 MHz Operation
600 mA Maximum Load Capability
6 MHz PWM Fixed Switching Frequency (typ.)
27 µA (typ.) Quiescent Current in PFM Mode
Wide Input Voltage Range: 2.3V to 5.5V
VOUT = 1.0V to 2.9V with 50 mV steps
±1.5% DC Output Voltage Precision Over Temperature
Best-in-Class Load Transient Response
Low Output Ripple in PFM Mode
Automatic PFM/PWM Mode Switching
Current Overload and Thermal Shutdown Protection
Internal Soft-Start
6-bump DSBGA Package
- (1.065 x 1.265 , 0.6 mm or 0.25 mm height)
Total Solution Size < 7mm2 (works with 0402 capacitors)
UVLO

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