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LM5143A-Q1中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書
LM5143A-Q1規(guī)格書詳情
1 Features
? AEC-Q100 qualified for automotive applications:
– Device temperature grade 1: –40°C to +125°C
ambient operating temperature
? Functional Safety-Capable
– Documentation available to aid functional safety
system design
? Versatile synchronous buck DC/DC controller
– Wide input voltage range of 3.5 V to 65 V
– 1 accurate, fixed 3.3-V, 5-V, or adjustable
outputs from 0.6 V to 55 V
– 150°C maximum junction temperature
– 3.3-μA typical shutdown mode current
– 15-μA typical no-load standby current
? Two interleaved synchronous buck channels
– Dual channel or single-output multiphase
– 65-ns tON(min) for high VIN/VOUT ratio
– 60-ns tOFF(min) for low dropout
? Inherent protection features for robust design
– Hiccup mode overcurrent protection
– Independent ENABLE and PGOOD functions
– Adjustable output voltage soft start
– VCC, VDDA, and gate-drive UVLO protection
– Thermal shutdown protection with hysteresis
? Optimized for CISPR 25 class 5 EMI requirements
– Slew-rate controlled adaptive gate drivers
– Spread spectrum reduces peak emissions
? 100-kHz to 2.2-MHz switching frequency
– SYNC in and SYNC out capability
– Selectable diode emulation or FPWM modes
? VQFN-40 package with wettable flank pins
? Create a custom design using the LM5143A-Q1
with WEBENCH? Power Designer
2 Applications
? Automotive electronic systems
? Infotainment systems, instrument clusters
? Advanced driver assistance systems (ADAS)
? Body electronics and lighting
3 Description
The LM5143A-Q1 is a 65-V DC/DC synchronous
buck controller for high-current single or dual outputs.
Deriving from a family of wide-VIN range controllers,
the device uses an interleaved, stackable, peak
current-mode control architecture for easy loop
compensation, fast transient response, excellent load
and line regulation, and accurate current sharing with
paralleled phases for higher output current. A highside
switch minimum on time of 65 ns provides large
step-down ratios, enabling the direct conversion from
12-V, 24-V, or 48-V inputs to low-voltage rails for
reduced system complexity and cost. The LM5143AQ1
continues to operate during input voltage dips as
low as 3.5 V, at nearly 100 duty cycle if needed.
The 15-μA no-load quiescent current with the
output voltage in regulation extends operating runtime
in battery-powered automotive systems. Power
the LM5143A-Q1 from the output of the switching
regulator or another available source for even lower
input quiescent current and power loss.
供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
---|---|---|---|---|---|---|---|
TI(德州儀器) |
2021+ |
VQFNP-40(6x6) |
499 |
詢價(jià) | |||
TI/德州儀器 |
23+ |
VQFN40 |
2000 |
原裝正品 實(shí)單支持 |
詢價(jià) | ||
TI |
22+ |
VQFNP (RWG) |
6000 |
原廠原裝,價(jià)格優(yōu)勢!13246658303 |
詢價(jià) | ||
TI德州儀器 |
22+23+ |
VQFN40 |
8000 |
新到現(xiàn)貨,只做原裝進(jìn)口 |
詢價(jià) | ||
TI/德州儀器 |
24+ |
VQFN40 |
3500 |
原裝正品 有掛有貨 假一賠十 |
詢價(jià) | ||
TI |
21+ |
VQFNP-40 |
3200 |
公司只做原裝,誠信經(jīng)營 |
詢價(jià) | ||
TI |
24+ |
NA |
6113 |
只做原裝正品,專注終端BOM表整單供應(yīng) |
詢價(jià) | ||
TI(德州儀器) |
23+ |
NA/ |
8735 |
原廠直銷,現(xiàn)貨供應(yīng),賬期支持! |
詢價(jià) | ||
TI(德州儀器) |
23+ |
VQFN(RHA)40 |
7350 |
現(xiàn)貨供應(yīng),當(dāng)天可交貨!免費(fèi)送樣,原廠技術(shù)支持!!! |
詢價(jià) | ||
TI |
23+ |
NA |
6800 |
原裝正品,力挺實(shí)單 |
詢價(jià) |