 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
MCP1661 датащи(PDF) 1 Page - Microchip Technology |
|
|
|||||||||||||||||||||||||||||
MCP1661 датащи(HTML) 1 Page - Microchip Technology |
|
|
1 / 34 page  2014-2015 Microchip Technology Inc. DS20005315B-page 1 MCP1661 Features •36V, 800 m Integrated Switch • Up to 92% Efficiency • High Output Voltage Range: up to 32V • 1.3A Peak Input Current Limit: -IOUT > 200 mA @ 5.0V VIN, 12V VOUT -IOUT > 125 mA @ 3.3V VIN, 12V VOUT -IOUT > 100 mA @ 4.2V VIN, 24V VOUT • Input Voltage Range: 2.4V to 5.5V • Undervoltage Lockout (UVLO): -UVLO @ VIN Rising: 2.3V, typical -UVLO @ VIN Falling: 1.85V, typical • No Load Input Current: 250 µA, typical • Sleep mode with 200 nA Typical Quiescent Current • PWM Operation with Skip mode: 500 kHz • Feedback Voltage Reference: VFB = 1.227V • Cycle-by-Cycle Current Limiting • Internal Compensation • Inrush Current Limiting and Internal Soft Start • Output Overvoltage Protection (OVP) in the event of: - Feedback pin shorted to GND - Disconnected feedback divider • Overtemperature Protection • Easily Configurable for SEPIC or Flyback Topologies • Available Packages: - 5-Lead SOT-23 - 8-Lead 2x3 TDFN Applications • Two and Three-Cell Alkaline, Lithium Ultimate and NiMH/NiCd Portable Products • Single-Cell Li-Ion to 5V, 12V or 24V Converters • LCD Bias Supply for Portable Applications • Camera Phone Flash • Portable Medical Equipment • Hand-Held Instruments • Single-Cell Li-Ion to 3.0V or 3.3V SEPIC Applications (see Figure 6-3) General Description The MCP1661 device is a compact, high-efficiency, fixed-frequency, non-synchronous step-up DC-DC converter which integrates a 36V, 800 m NMOS switch. It provides a space-efficient high-voltage step-up power supply solution for applications powered by either two-cell or three-cell alkaline, Ultimate Lithium, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries. The integrated switch is protected by the 1.3A cycle-by-cycle inductor peak current limit operation. There is an output overvoltage protection which turns off switching in case the feedback resistors are accidentally disconnected or the feedback pin is short-circuited to GND. Low-voltage technology allows the regulator to start-up without high inrush current or output voltage overshoot from a low-voltage input. The device features a UVLO which avoids start-up and operation with low inputs or discharged batteries for two cell-powered applications. For standby applications (EN = GND), the device stops switching, enters Sleep mode and consumes 200 nA (typical) of input current. MCP1661 is easy to use and allows creating classic boost, SEPIC or flyback DC-DC converters within a small Printed Circuit Board (PCB) area. All compensation and protection circuitry is integrated to minimize the number of external components. Ceramic input and output capacitors are used. Package Types * Includes Exposed Thermal Pad (EP); see Table 3-1. SW EN VIN GND MCP1661 SOT-23 VFB MCP1661 2x3 TDFN* 1 2 3 5 4 SW SGND NC PGND NC 1 2 3 4 8 7 6 5 VIN EN VFB EP 9 High-Voltage Integrated Switch PWM Boost Regulator with UVLO |
Аналогичный номер детали - MCP1661 |
|
Аналогичное описание - MCP1661 |
|
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
