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LMR38025FS3QDRRRQ1中文资料PDF规格书
LMR38025FS3QDRRRQ1规格书详情
1 Features
• AEC-Q100 qualified for automotive applications
– Temperature grade 1: –40°C to +150°C, TJ
• Functional Safety-Capable
– Documentation available to aid functional safety
system design
• Optimized for Low EMI requirements
– Spread spectrum option for reduced peak
emissions
– Low package parasitics facilitating CIPR25
class 5 compliance
• Configured for rugged automotive applications
– Input voltage range: 4.2 V to 80 V
– 2.5-A continuous output current
– Ultra-low 40-μA operating quiescent current
– Adjustable switching frequency from 200 kHz to
2.2 MHz
– Frequency synchronization to external clock
– 97 maximum duty cycle
– Supports start-up events with pre-biased output
– ±1.5 reference voltage tolerance over
temperature
– Precision enable
– Easy to use with integrated compensation
network enabling low BOM count
– Integrated synchronous rectification
– 12-pin WSON Wettable Flank with PowerPAD™
integrated circuit package
– PFM and forced PWM (FPWM) options
• Create a custom design using the LMR38025-Q1
with the WEBENCH® Power Designer
2 Applications
• Automotive inverter and motor control
• Automotive DC/DC converters
• Automotive battery management system
• Automotive 48-V mild hybrid ECU bias supplies
3 Description
The LMR38025-Q1 synchronous buck converter is
designed to regulate over a wide input voltage range,
minimizing the need for external surge suppression
components. The LMR38025-Q1 operates during
input voltage dips as low as 4.2 V, at nearly 100
duty cycle if needed, making the device an excellent
choice for 48-V battery automotive applications and
MHEV/EV systems as the absolute maximum input
voltage is 85 V.
The LMR38025-Q1 features a high voltage enable
pin to enable the device by connecting it to the
wide input supply voltage or by having precise UVLO
control across start-up and shutdown. The powergood
flag, with built-in filtering and delay, offers a
true indication of system status, eliminating the need
for an external supervisor. The device incorporates
pseudorandom spread spectrum option for minimal
EMI. The switching frequency can be configured
between 200 kHz and 2.2 MHz to avoid noise
sensitive frequency bands. In addition, the frequency
can be programmed through the RT pin for improved
efficiency at low operating frequencies or by having a
smaller design size at high operating frequencies.
The device has built-in protection features such as
cycle-by-cycle current limit, hiccup mode short-circuit
protection, and thermal shutdown in case of excessive
power dissipation. The LMR38025-Q1 is qualified to
automotive AEC-Q100 grade 1 and is available in a
12-pin WSON package.
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
NA |
23+ |
NA/ |
3308 |
原装现货,当天可交货,原型号开票 |
询价 | ||
TI(德州仪器) |
23+ |
NA/ |
7350 |
现货供应,当天可交货!免费送样,原厂技术支持!!! |
询价 | ||
TI |
23+ |
VQFN-HR-9 |
3050 |
市场最低 原装现货 假一罚百 可开原型号 |
询价 | ||
TI/德州仪器 |
22+ |
VQFN9 |
9000 |
原装正品 |
询价 | ||
TI/德州仪器 |
23+ |
VQFN-9 |
8355 |
只做原装现货/实单可谈/支持含税拆样 |
询价 | ||
DENSITRON |
22+ |
SMD |
518000 |
明嘉莱只做原装正品现货 |
询价 | ||
TAIYO/太诱 |
XX |
13000 |
原厂授权一级代理,专业海外优势订货,价格优势、品种 |
询价 | |||
23+ |
N/A |
98000 |
一级代理放心采购 |
询价 | |||
NA |
23+ |
NA |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
TEXAS INSTRUMENTS INCORPORATED |
22+ |
NA |
4000 |
原装正品支持实单 |
询价 |