 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
LTC1430AI датащи(PDF) 1 Page - Linear Technology |
|
|
|||||||||||||||||||||||||||||
LTC1430AI датащи(HTML) 1 Page - Linear Technology |
|
|
1 / 24 page  1 LTC1430A High Power Step-Down Switching Regulator Controller S FEATURE DESCRIPTIO The LTC ®1430A is a high power, high efficiency switching regulator controller optimized for 5V to 1.xV-3.xV applica- tions. It includes a precision internal reference and an internal feedback system that can provide output regula- tion of ±1%overtemperature,loadcurrentandlinevoltage shifts. The LTC1430A uses a synchronous switching archi- tecture with two N-channel output devices, eliminating the need for a high power, high cost P-channel device. Addi- tionally, it senses output current across the drain-source resistance of the upper N-channel FET, providing an adjustable current limit without an external low value sense resistor. The LTC1430A includes a fixed frequency PWM oscillator for low output ripple under virtually all operating condi- tions. The 200kHz free-running clock frequency can be externally adjusted from 100kHz to above 500kHz. The LTC1430A’s maximum duty cycle is typically 93.5% com- pared to 88% for the LTC1430. This permits 3.3V to 2.xV conversion using a low power 5V supply. The LTC1430A features low 350 µA quiescent current, allowing greater than 90% efficiency operation in converter designs from 1A to greater than 50A output current. Shutdown mode drops the LTC1430A supply current to 1 µA. s High Power 5V to 1.xV-3.xV Switching Controller: Can Exceed 10A Output s Maximum Duty Cycle > 90% Permits 3.3V to 2.xV Conversion Using a Low Power 5V Supply s All N-Channel External MOSFETs s Fixed Frequency Operation—Small L s Excellent Output Regulation: ±1% Over Line, Load and Temperature Variations s High Efficiency: Over 95% Possible s No Low Value Sense Resistor Needed s Outputs Can Drive External FETs with Up to 10,000pF Gate Capacitance s Quiescent Current: 350 µA Typ, 1µA in Shutdown s Fast Transient Response s Adjustable or Fixed 3.3V Output s Available in 8-Lead SO and 16-Lead GN and SO Packages APPLICATI TYPICAL Efficiency Typical 5V to 3.3V, 10A Application + CIN 220 µF ×4 COUT 330 µF ×6 + + + 2.7 µH/15A PVCC1 VCC FREQSET SHDN COMP SS PVCC2 PGND GND G1 IFB IMAX G2 NC 1430 TA01 SHUTDOWN FB NC Q1A, Q1B, Q2: MOTOROLA MTD20N03HL CIN: AVX-TPSE227M010R0100 COUT: AVX-TPSE337M006R0100 SENSE+ LTC1430A SENSE– 16k 100 Ω RC 7.5k CC 4700pF C1 220pF MBR0530T1 1k 0.1 µF 1 µF 0.01 µF 0.1 µF 4.7 µF 0.1 µF 3.3V 10A Q1A, Q1B 2 IN PARALLEL Q2 5V LOAD CURRENT (A) 40 70 100 90 80 50 60 10 1430 TA02 0.1 1 TA = 25°C PVCC = 5V VOUT = 3.3V , LTC and LT are registered trademarks of Linear Technology Corporation. Pentium is a registered trademark of Intel Corporation. AMD-K6 is a registered trademark of Advanced Micro Devices, Inc. S APPLICATI s Power Supply for Pentium ® II and AMD-K6® Microprocessors s High Power 5V to 3.xV Regulators s Local Regulation for Dual Voltage Logic Boards s Low Voltage, High Current Battery Regulation |
Аналогичный номер детали - LTC1430AI |
|
Аналогичное описание - LTC1430AI |
|
|
|
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
