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TPS546A24S中文资料德州仪器数据手册PDF规格书
TPS546A24S规格书详情
1 Features
• Integrated extended security feature
• Split rail support: 2.95-V to 18-V PVIN; 2.95-V to
18-V AVIN (4-VIN VDD5 for switching)
• Integrated 5.5-mΩ/1.8-mΩ MOSFETs
• Average current mode control with selectable
internal compensation
• 2 ×, 3 ×, 4 × stackable with current sharing up to
40 A, supporting a single address per output
• Selectable 0.5-V to 5.5-V output through
pin strap or 0.25-V to 5.5-V using PMBus
VOUT_COMMAND
• Extensive PMBus command set with telemetry for
VOUT, IOUT, and internal die temperature
• Differential remote sensing with an internal FB
divider for < 1 VOUT error, –40°C to +150°C TJ
• AVS and margining capabilities through PMBus
• MSEL pins pin programming PMBus defaults
• 12 selectable switching frequencies from 225 kHz
to 1.5 MHz (8 pin strap options)
• Frequency sync in, sync out
• Supports prebiased output
• 7-mm × 5-mm × 1.5-mm, 40-pin QFN
• Drop-in compatible with TPS546A24A
• Create a Custom Design Using the TPS546A24S
with WEBENCH® Power Designer
2 Applications
• Data center switches, rack servers
• Active antenna system, remote radio and
baseband unit
• Automated test equipment, CT, PET, and MRI
• ASIC, SoC, FPGA, DSP core, and I/O voltage
3 Description
The TPS546A24S is a highly integrated, non-isolated
DC/DC converter that expands on the TPS546A24A
by adding manufacturer-specific PMBus commands
and Extended Write Protect and Passkey. This feature
improves security against malicious access to the
PMBus by restricting Write capability with greater
resolution than the standard Write Protect command.
TPS546A24S is capable of high frequency operation
and 10-A current output from a 7-mm × 5-mm
package. Two, three, and four TPS546A24S devices
can be interconnected to provide up to 40 A on a
single output. The device has an option to overdrive
the internal 5-V LDO with an external 5-V supply
through the VDD5 pin to improve efficiency and
reduce power dissipation of the converter.
The TPS546A24S uses a proprietary fixed-frequency
current-mode control with input feedforward and
selectable internal compensation components for
minimal size and stability over a wide range of output
capacitances.
The PMBus® interface with 1-MHz clock support
gives a convenient, standardized digital interface for
converter configuration as well as monitoring of key
parameters including output voltage, output current,
and internal die temperature. Response to fault
conditions can be set to restart, latch off, or ignore,
depending on system requirements. Back-channel
communication between stacked devices enables all
TPS546A24S converters powering a single output rail
to share a single address to simplify system software/
firmware design. Key parameters including output
voltage, switching frequency, soft-start time, and
overcurrent fault limits can also be configured through
BOM selection without PMBus communication to
support program free power up.
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI(德州仪器) |
23+ |
LQFNCLIP40(7x5) |
7350 |
现货供应,当天可交货!免费送样,原厂技术支持!!! |
询价 | ||
TI(德州仪器) |
23+ |
NA/ |
8735 |
原厂直销,现货供应,账期支持! |
询价 | ||
TI |
三年内 |
1983 |
纳立只做原装正品13590203865 |
询价 | |||
Texas |
21+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
TI |
21+ |
LQFN-CL |
12588 |
原装正品,自己库存 假一罚十 |
询价 | ||
2322+ |
NA |
33220 |
无敌价格 主销品牌 正规渠道订货 免费送样!!! |
询价 | |||
TI |
22+ |
40-LFQFN |
9000 |
原厂渠道,现货配单 |
询价 | ||
TI |
22+ |
NA |
500000 |
万三科技,秉承原装,购芯无忧 |
询价 | ||
TI |
23+ |
NA |
7000 |
开关稳压器 |
询价 | ||
Texas Instruments |
24+ |
40-LFQFN 裸露焊盘 |
9350 |
独立分销商,公司只做原装,诚心经营,免费试样正品保证 |
询价 |