TPS65051 2.25MHz dual step down converter with 4 low input voltage LDOs
TPS65051 描述
The TPS6505x are integrated Power Management ICs for applications powered by one Li-Ion or Li-Polymer cell, which require multiple power rails. The TPS6505x provides two efficient, 2.25-MHz step-down converters targeted at providing the core voltage and I/O voltage in a processor based system. Both step-down converters enter a low power mode at light load for maximum efficiency across the widest possible range of load currents.
For low noise applications, the devices can be forced into fixed frequency PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 uA. The devices allow the use of small inductors and capacitors to achieve a small solution size. TPS6505x provides an output current of up to 1 A on each DC/DC converter.
|
TPS65050 |
TPS65051 |
TPS65052 |
TPS65053 |
TPS650531 |
TPS650532 |
TPS65054 |
TPS65055 |
TPS65056 |
TPS65058 |
| Vin(Min)(V) |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
| Vin(Max)(V) |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6.0 |
6 |
6 |
| Step-Down DC/DC Converter |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
| LDO |
4 |
4 |
4 |
3 |
3 |
3 |
4 |
4 |
4 |
3 |
| Processor Name |
Samsung-S3C2410/2/3 |
Freescale IMX25 |
Samsung-S3C2410/2/3 |
TI DM355,Freescale IMX27 |
SiRF 4 |
|
TI-OMAP1710 |
|
Samsung-S3C2440,Samsung-S3C2442 |
|
| Pin/Package |
32VQFN |
32VQFN |
32VQFN |
24VQFN |
24VQFN |
24VQFN |
32VQFN |
32VQFN |
32VQFN |
24VQFN |
| Topology |
Multi-Channel |
Multi-Channel |
Multi-Channel |
Multi-Channel |
Multi-Channel |
Multi-Channel |
Multi-Channel |
Multi-Channel |
Multi-Channel |
Multi-Channel |
| Regulated Outputs(#) |
6 |
6 |
6 |
5 |
5 |
5 |
6 |
6 |
6 |
5 |
TPS65051 特性
- Up To 95% Efficiency
- Output Current for DC/DC Converters:
- TPS65050: 2 x 0.6 A
- TPS65051: DCDC1 = 1 A; DCDC2 = 0.6 A
- TPS65052: DCDC1 = 1 A; DCDC2 = 0.6 A
- TPS65054: 2 x 0.6 A
- TPS65056: DCDC1 = 1 A; DCDC2 = 0.6 A
- Output Voltages for DC/DC Converters
- TPS65050: Externally Adjustable
- TPS65051: Externally Adjustable
- TPS65052: DCDC1 = Fixed at 3.3 V; DCDC2 = 1 V / 1.3 V for Samsung Application Processors
- TPS65054: DCDC1 = Externally Adjustable; DCDC2 = 1.3 V / 1.05 V for OMAP1710 Processor
- TPS65056: DCDC1 = Fixed at 3.3 V;
DCDC2 = 1 V / 1.3 V for Samsung Application Processors
- VI Range for DC/DC Converters
From 2.5 V to 6 V
- 2.25-MHz Fixed Frequency Operation
- Power Save Mode at Light Load Current
- 180° Out-of-Phase Operation
- Output Voltage Accuracy in PWM mode ±1%
- Low Ripple PFM Mode
- Total Typical 32-uA Quiescent Current for Both DC/DC Converters
TPS65051 芯片订购指南
| 器件 |
状态 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS65051RSMR |
ACTIVE |
1.85 | 1ku |
QFN (RHB) | 32 |
3000 | LARGE T&R |
|
| TPS65051RSMRG4 |
ACTIVE |
1.85 | 1ku |
QFN (RHB) | 32 |
3000 | LARGE T&R |
|
| TPS65051RSMT |
ACTIVE |
2.05 | 1ku |
QFN (RHB) | 32 |
250 | SMALL T&R |
|
| TPS65051RSMTG4 |
ACTIVE |
2.05 | 1ku |
QFN (RHB) | 32 |
250 | SMALL T&R |
|
TPS65051 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| TPS65051RSMR |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-2-260C-1 YEAR |
TPS65051RSMR |
TPS65051RSMR |
| TPS65051RSMRG4 |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-2-260C-1 YEAR |
TPS65051RSMRG4 |
TPS65051RSMRG4 |
| TPS65051RSMT |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-2-260C-1 YEAR |
TPS65051RSMT |
TPS65051RSMT |
| TPS65051RSMTG4 |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-2-260C-1 YEAR |
TPS65051RSMTG4 |
TPS65051RSMTG4 |
TPS65051 应用技术支持与电子电路设计开发资源下载
- TPS65051 数据资料 dataSheet 下载.PDF
- TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . xls
- Dual MOSFET Driver
(PDF 498 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Understanding Boost Power Stages In Switchmode Power Supplies
(PDF 149 KB)
- Understanding Buck Power Stages In Switchmode Power Supplies
(PDF 173 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
TPS65051 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS65051 评估模块 |
TPS65051EVM-195 |
Texas Instruments |
开发电路板/EVM |
| SwitcherPro(TM) 开关电源设计工具 |
SWITCHERPRO |
Texas Instruments |
应用软件 |
TPS65051 参考设计
| 说明 |
型号 |
公司 |
| LDO、降压/升压、2 相同步降压、同步升压参考设计 |
PR038 |
Texas Instruments |
| 以太网电源 - 同步反向参考设计 |
PMP386 |
Texas Instruments |
| 同步 降压，两个输入电压 4.5-5.5V 的升压 多输出电压 3.3V、5V 和 12V |
PMP146 |
Texas Instruments |
| 降压/升压参考设计 |
PMP379 |
Texas Instruments |