The LM2772 is a switched capacitor step-down regulator that produces a 1.2V output. It is capable of supplying loads up to 150mA with 3% output voltage regulation over line, load, and temperature. The LM2772 operates with an input voltage from 3.0V to 5.5V, accommodating 1-cell Li-Ion batteries and chargers.

The LM2772 utilizes a highly efficient regulated multi-gain charge pump. Pre-regulated 1.1MHz fixed-frequency switching results in very low ripple and noise on both the input and the output. When output currents are low, the part automatically switches to a low-ripple PFM regulation mode to maintain high efficiency over the entire load range.

The LM2772 is available in TI’s WSON-10 Package (WSON-10).

• Low-Noise Fixed Frequency Operation
• 1.2V Output Voltage
• 3% Output Voltage Regulation
• Li-Ion (3.6V) to 1.2V with 80% Efficiency
• Very Low Output Ripple: 8mV @ 150mA
• Output Currents up to 150mA
• 2.7V to 5.5V Input Voltage Range
• Shutdown Disconnects Load from VIN
• 1.1MHz Switching Frequency
• No Inductors…Small Solution Size
• Short Circuit and Thermal Protection
• WSON-10 Package (3mm × 3mm × 0.8mm)

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• Vin (Min) (V)
• 2.7
• Vin (Max) (V)
• 5.5
• Vout (Min) (V)
• 1.2
• Vout (Max) (V)
• 1.2
• Iout (Max) (A)
• 0.15
• Regulated outputs (#)
• 1
• Switching frequency (Min) (kHz)
• 800
• Switching frequency (Max) (kHz)
• 1500
• Iq (Typ) (mA)
• 0.05
• Features
• Enable
• Rating
• Catalog

LM2772的完整型号有：LM2772SD/NOPB，以下是这些产品的关键参数及官网采购报价：

LM2772SD/NOPB，工作温度：-30 to 85，封装：WSON (DSC)-10，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM2772SD/NOPB的批量USD价格：.319（1000+）

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