| • Implements low-power boost, SEPIC, or flyback • 2.5V to 14V input voltage • 330kHz switching frequency • <2μA shutdown current • 70μA quiescent current • 1.24V bandgap reference • typical output current 1mA to 10mA • SOT-23-5 Package |
| The MIC2141 is a micropower boost switching regulator that can operate from 3- or 4-cell nickel-metal-hydride batteries or a single Li-ion cell. This regulator employs a constant 330kHz, fixed 18% duty-cycle, gated-oscillator architecture. The MIC2141 can be used in applications where the output voltage must be dynamically adjusted. The device features a control signal input which is used to proportionally adjust the output voltage. The control signal input has a gain of 6, allowing a 0.8V to 3.6V control signal to vary a 4.8V to 22V output. The MIC2141 requires only three external components to operate and is available in a tiny 5-lead SOT-23 package for space and power-sensitive portable applications. The MIC2141 draws only 70μA of quiescent current and can operate with an efficiency exceeding 85%. |
| • LCD bias supply • CCD digital camera supply |
| Supply Voltage (VIN) ...................................................+18V Switch Voltage (VSW) ..................................................+24V Feedback Voltage (FB) ................................................+24V Control Input Voltage (VC), Note 3 ..VIN–200mV ≤ VC ≤ 4V ESD Rating, Note 4 ...................................................... 2kV |
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| 厂家 | MICREL [Micrel Semiconductor] |
| 简要 描述 |
Micropower Boost Converter Preliminary Information |
| A | B | C | D | E | F | G | H | I | J |
| K | L | M | N | O | P | Q | R | S | T |
| U | V | W | X | Y | Z | 0 | 1 | 2 | 3 |
| 4 | 5 | 6 | 7 | 8 | 9 |
| MIC2010-2PCQS |
| MIC2183BQS |
| MIC2142 |
| MIC2142BM5 |
| MIC2141-BM5 |
| MIC1810 |
| MIC1810_U |
| MIC1815 |