Maxim Confidential 
MyMaxim のご登録製品の詳細
主な特長
アプリケーション/用途
| Topology | Doubler Inverter Unregulated |
| VIN (V) (min) | 1.5 |
| VIN (V) (max) | 5.5 |
| IOUT (A) (typ) | 0.05 |
| Unadj. VOUT (V) | +2xVIN -VIN |
| ICC (mA) (max) | 0.3 |
| Switching Frequency (kHz) | 130 |
| Oper. Temp. (°C) | -55 to +125 -40 to +85 0 to +70 |
| Package/Pins | SOIC (N)/8 UMAX/8 |
| Budgetary Price (See Notes) | 1.3 |
簡易ブロック図
技術資料
| データシート | 50mA、周波数選択可能、スイッチトキャパシタ電圧コンバータ | Aug 20, 2013 | |
| チュートリアル | DC-DC Conversion Without Inductors | ||
| アプリケーションノート | DC-DC Conversion Without Inductors |
パラメーター
| Topology | Doubler Inverter Unregulated |
| VIN (V) (min) | 1.5 |
| VIN (V) (max) | 5.5 |
| IOUT (A) (typ) | 0.05 |
| Unadj. VOUT (V) | +2xVIN -VIN |
| ICC (mA) (max) | 0.3 |
| Switching Frequency (kHz) | 130 |
| Oper. Temp. (°C) | -55 to +125 -40 to +85 0 to +70 |
| Package/Pins | SOIC (N)/8 UMAX/8 |
| Budgetary Price (See Notes) | 1.3 |
主な特長
- 8-Pin, 1.11mm High µMAX Package
- Invert or Double the Input Supply Voltage
- Three Selectable Switching Frequencies
- High Frequency Reduces Capacitor Size
- 87% Efficiency at 50mA
- 200µA Quiescent Current (MAX860)
- 1µA Shutdown Supply Current
- 600mV Voltage Drop at 50mA Load
- 12Ω Output Resistance
アプリケーション/用途
- ハンドヘルド機器(PDA、パームトップ)
- インタフェース電源
- 医療用機器
- オペアンプ電源
- ポータブルコンピュータ
説明
The MAX860/MAX861 charge-pump voltage converters invert input voltages ranging from +1.5V to +5.5V, or double input voltages ranging from +2.5V to +5.5V. Because of their high switching frequencies, these devices use only two small, low-cost capacitors. Their 50mA output makes switching regulators unnecessary, eliminating inductors and their associated cost, size, and EMI. Greater than 90% efficiency over most of the load-current range, combined with a typical operating current of only 200µA (MAX860), provides ideal performance for both battery-powered and board-level voltage-conversion applications.
A frequency-control (FC) pin provides three switching-frequencies to optimize capacitor size and quiescent current and to prevent interference with sensitive circuitry. Each device has a unique set of three available frequencies. A shutdown (active-low SHDN) pin reduces current consumption to less than 1µA. The MAX860/MAX861 are suitable for use in applications where the ICL7660 and MAX660's switching frequencies are too low. The MAX860/MAX861 are available in 8-pin µMAX® and SO packages.
技術資料
| データシート | 50mA、周波数選択可能、スイッチトキャパシタ電圧コンバータ | Aug 20, 2013 | |
| チュートリアル | DC-DC Conversion Without Inductors | ||
| アプリケーションノート | DC-DC Conversion Without Inductors |
見積もり請求