LM2773 Low-Ripple 1.8V/1.6V Spread-Spectrum Switched Capacitor Step-Down Regulator

數(shù)據(jù)： Low-Ripple 1.8V/1.6V Spread-Spectrum Switched Capacitor Step-Down Regulator 數(shù)據(jù)表

描述

The LM2773 is a switched capacitor step-down regulator that produces a selectable 1.8V or 1.6V output. It is capable of supplying loads up to 300mA. The LM2773 operates with an input voltage from 2.5V to 5.5V, accommodating 1-cell Li-Ion batteries and chargers.

The LM2773 utilizes a regulated charge pump with gains of 2/3x and 1x. It has very low ripple and noise on both the input and output due to its pre-regulated 1.15MHz (typ.) switching frequency and spread spectrum operation. When output currents are low, the LM2773 automatically switches to a low-ripple PFM regulation mode to maintain high efficiency over the entire load range.

The LM2773 is available in TI's 0.5mm pitch 9-bump DSBGA.

特性

低噪聲擴頻操作
1.8V /1.6V可選輸出電壓
2 ％輸出電壓調(diào)節(jié)
＆gt; 1.8V模式下效率為75％
極低輸出紋波：10mV @ 300mA
輸出電流高達(dá)300mA
2.5V至5.5V輸入電壓范圍< /li>
關(guān)閉斷開負(fù)載 IN
1.15MHz開關(guān)頻率
無電感器......小解決方案尺寸
短路和熱保護
0.5mm間距，DSBGA-9（1.511×1.511mm×0.6mm）

所有商標(biāo)均為其各自的商標(biāo)。擁有者。

參數(shù) 與其它產(chǎn)品相比?降壓充電泵（無電感器）

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Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Operating Temperature Range (C)
Package Group
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