TPS62914中文资料PDF规格书
TPS62914规格书详情
1 Features
• Low output 1/f noise < 20 μVRMS
(100 Hz to 100 kHz)
• Low output voltage ripple < 10 μVRMS after ferrite
bead
• High PSRR of > 65 dB (up to 100 kHz)
• 2.2-MHz, 1.4-MHz, or 1-MHz fixed frequency peak
current mode control
• Synchronizable with external clock (optional)
• Integrated loop compensation supports ferrite
bead for second stage L-C filter with 30-dB
attenuation (optional)
• Spread spectrum modulation (optional)
• 3.0-V to 17-V input voltage range
• 0.8-V to 5.5-V output voltage range
• 25-mΩ/6.5-mΩ RDSon
• Output voltage accuracy of ±1 over temperature
• Precise enable input allows
– User-defined undervoltage lockout
– Exact sequencing
• Adjustable soft start
• Power-good output
• Output discharge (optional)
• –40°C to 150°C junction temperature range
• 2.5-mm × 3.0-mm QFN with 0.5-mm pitch
• Create a custom design using the TPS6291x with
the WEBENCH® Power Designer
2 Applications
• Telecom infrastructure
• Test and measurement
• Aerospace and defense (radar, avionics)
• Medical
3 Description
The TPS6291x devices are a family of high-efficiency,
low noise and low ripple current mode synchronous
buck converters. The devices are designed for noise
sensitive applications that normally use an LDO for
post regulation such as high-speed ADCs, clock
and jitter cleaner, serializer, de-serializer, and radar
applications.
To reduce the output voltage ripple, the device's
loop compensation is designed to to operate with
an optional second-stage ferrite bead L-C filter. Lowfrequency
noise levels, similar to a low-noise LDO,
are further achieved by filtering the internal voltage
reference with a capacitor connected to the NR/SS
pin. Combined, these features allow for an output
voltage ripple below 10 μVRMS.
The devices operate at a fixed switching frequency
of 2.2 MHz, 1.4 MHz, or 1 MHz, and can be
synchronized to an external clock, and an optional
spread spectrum modulation scheme spreads the
DC/DC switching frequency over a wider span, which
lowers the mixing spurs.
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI/德州仪器 |
24+ |
NA |
860000 |
明嘉莱只做原装正品现货 |
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 | ||
Texas Instruments |
23+ |
sop |
100 |
现货常备产品原装可到京北通宇商城查价格 |
询价 | ||
TI/德州仪器 |
22+ |
SOT5X3-8 |
3000 |
公司现货,有挂就有货。 |
询价 | ||
TI/德州仪器 |
23+ |
SOT-5X3-8 |
8355 |
只做原装现货/实单可谈/支持含税拆样 |
询价 | ||
23+ |
N/A |
56800 |
一级代理放心采购 |
询价 | |||
TI/德州专营 |
SOT583 |
12000 |
原装现货,长期供应,终端账期支持 |
询价 | |||
TI/德州专营 |
SOT583 |
6000 |
原装现货,长期供应,终端可账期 |
询价 | |||
TI |
22+ |
4000 |
少量现货,先到先得 |
询价 | |||
TI(德州仪器) |
23+ |
SOT-583 |
2425 |
低于参考价.一级代理商原装进口现货 假一赔十 |
询价 |