TPS61258A中文资料PDF规格书
TPS61258A规格书详情
1 Features
• Wide input voltage range from 2.3 V to 5.5 V
(TPS61253A)
• Wide input voltage range from 2.5 V to 5.5 V
(Startup>2.6V, TPS61253E)
• Fixed output voltage: 4.5 / 4.7 / 5.0 / 5.2 V / 5.25 V
• Two FETs integrated: 35-mΩ LS-FET, 60-mΩ HSFET
• IOUT ≥ 1500-mA continuously at VOUT = 5 V and
VIN ≥ 3 V (TPS61253A)
• IOUT ≥ 1500-mA continuously at VOUT = 5.25 V
and VIN ≥ 3 V (TPS61253E)
• 42-μA quiescent current from input
• 4-A switching valley current limit
• 3.8-MHz switching frequency
• Selectable auto PFM, forced PWM, and ultrasonic
mode
• Support pass-through mode
• ±2 output voltage accuracy
• 600-μs soft-start time
• Hiccup-mode short protection
• Load disconnection during shutdown
• Thermal shutdown
• Total solution size < 25 mm2
• Create a custom design using the TPS61253A
with the WEBENCH® Power Designer
2 Applications
• Smart phones
• Portable speaker
• USB charging ports
• NFC PA supply
• Li battery to 5-V power conversion
3 Description
The TPS61253x device provides a power supply
solution for battery-powered portable applications.
With the input voltage ranging from 2.3 V to 5.5
V (TPS61253A) or 2.5 V to 5.5 V (TPS61253E),
the device supports the applications powered by
the Li-Ion batteries with the extended voltage range.
Different fixed output voltage versions are available of
4.5 V, 4.7 V, 5 V, 5.2V and 5.25 V. The TPS61253x
supports up to 1500-mA load current from a battery
discharged as low as 3 V.
The TPS61253x operates at typical 3.8-MHz
switching frequency. The TPS61253x can be flexibly
configured at the Auto PFM mode, forced PWM
mode, or ultrasonic mode. The Auto PFM mode
can benefit with the high efficiency at the light load.
The forced PWM operation can make the switching
frequency be constant crossing the whole load range.
The ultrasonic mode keeps the switching frequency
always larger than 25 kHz at any load condition to
avoid the acoustic noise.
TPS61253x has a built-in 600-μs soft start to avoid
the inrush current at start-up. When the output is
shorted, the device enters into the hiccup mode and
recovers automatically after the short releases. During
the shutdown, the load is completely disconnected
from the input end with maximum 1.3-μA current
being consumed.
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI/德州仪器 |
23+ |
QFN |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
TI/德州仪器 |
21+ |
DSBGA9 |
3000 |
百域芯优势 实单必成 可开13点增值税 |
询价 | ||
TI |
21+ |
DSBGA9 |
39890 |
全新原装现货,假一赔十 |
询价 | ||
22+ |
NA |
3450 |
加我QQ或微信咨询更多详细信息, |
询价 | |||
TI/德州仪器 |
22+ |
SMD |
90000 |
原装正品 |
询价 | ||
TI |
23+ |
DSBGA9 |
10000 |
公司只做原装,假一罚十 |
询价 | ||
TI |
23+ |
开发板 |
894 |
确保原装正品,一站式BOM配单 |
询价 | ||
6000 |
询价 | ||||||
80000 |
询价 | ||||||
TI/德州仪器 |
23+ |
8355 |
只做原装现货/实单可谈/支持含税拆样 |
询价 |