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LT8638RV-2WPBF中文资料PDF规格书
LT8638RV-2WPBF规格书详情
GENERAL DESCRIPTION
The LT®8638-2 synchronous step-down regulator
features the Silent Switcher® architecture designed to
minimize EMI emissions while delivering high efficiency
at high switching frequencies. This performance makes
the LT8638-2 ideal for noise sensitive applications and
environments.
The fast, clean, low overshoot switching edges enable
high efficiency operation even at high switching
frequencies, leading to a small overall solution size.
Peak current mode control with a 25ns minimum ontime
allows high step down ratios even at high switching
frequencies. External compensation through the VC pin
allows for fast transient response. PolyPhase operation
allows multiple LT8638-2 regulators to run with
interleaving phase shift to provide more output current.
Burst Mode operation enables low standby current
consumption, forced continuous mode can control
frequency harmonics across the entire output load
range, or spread spectrum operation can further reduce
EMI emissions. Soft-start and tracking functionality is
accessed through the SS pin, and an accurate input
voltage UVLO threshold can be set using the EN/UV pin.
FEATURES
Silent Switcher® Architecture
Ultralow EMI Emissions
Optional Spread Spectrum Modulation
High Efficiency at High Frequency
Up to 96 Efficiency at 1MHz, 12VIN to 5VOUT
Up to 94 Efficiency at 2MHz, 12VIN to 5VOUT
Wide Input Voltage Range: 2.8V to 42V
10A Maximum Continuous, 12A Peak Transient
Output
Fast Transient Response with External
Compensation
Low Quiescent Current Burst Mode® Operation
90μA IQ Regulating 12VIN to 5VOUT
Output Ripple < 10mVP-P
Reference Accuracy: ±1 Over Temperature
Fast Minimum Switch On-Time: 25ns
PolyPhase® Operation: Up to 12 Phases
Low Dropout Under All Conditions: 45mV at 1A
Adjustable and Synchronizable: 200kHz to 3MHz
Output Soft-Start and Power Good
Safely Tolerates High Reverse Current
28-Lead 5mm × 4mm LQFN Package
AEC-Q100 Qualified for Automotive Applications
APPLICATIONS
Automotive and Industrial Supplies
General Purpose Step-Down
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ADI(亚德诺) |
22+ |
NA |
10000 |
原厂原装现货 |
询价 | ||
ADI(亚德诺) |
23+ |
LQFN28 |
7350 |
原装进口,原厂直销!当天可交货,支持原型号开票! |
询价 | ||
ANALOG DEVICES |
22+ |
SMD |
518000 |
明嘉莱只做原装正品现货 |
询价 | ||
ADI/亚德诺 |
23+ |
LQFN-28 |
490 |
只做原装新货支持实单 |
询价 | ||
ADI(亚德诺) |
23+ |
NA/ |
8735 |
原厂直销,现货供应,账期支持! |
询价 | ||
ADI |
LQFN-28 |
30000 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
ADI |
22+ |
LQFN-28 |
490 |
只做原装新货支持实单 |
询价 | ||
ADI(亚德诺) |
22+ |
N/A |
10000 |
正规渠道,只有原装! |
询价 | ||
6000 |
询价 | ||||||
ADI(亚德诺) |
22+ |
N/A |
10000 |
原装,BOM表可配单 |
询价 |