TPS62420-Q1 具有 1 线接口的汽车类双路 600mA 和 1000mA、2.25MHz 降压转换器
|
TPS62420-Q1 |
| Iout(Max)(A) |
0.6 |
| Iout2(Max)(A) |
1 |
| Vin(Min)(V) |
2.5 |
| Vin(Max)(V) |
6 |
| Vout(Min)(V) |
0.6 |
| Vout(Max)(V) |
6 |
| Iq(Typ)(mA) |
0.032 |
| Switching Frequency(Max)(kHz) |
2250 |
| Switch Current Limit(Typ)(A) |
1 |
| Topology |
Buck |
| Operating Temperature Range(°C) |
-40 to 125 |
| Pin/Package |
10SON |
| Rating |
Automotive |
| Duty Cycle(Max)(%) |
100 |
| Vout2(Min)(V) |
0.6 |
| Vout2(Max)(V) |
6 |
| Regulated Outputs(#) |
2 |
| Thermal Shutdown |
No |
TPS62420-Q1 描述
The TPS62420 device is a synchronous dual step-down dc-dc converter optimized for battery-powered portable applications. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3-V or 5-V voltage rail.
With the EasyScale serial interface the output voltages can be modified during operation. It therefore supports Dynamic Voltage Scaling for low power DSP and processors.
The TPS62420 operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range. For low-noise applications, the devices can be forced into fixed-frequency PWM mode by pulling the MODE/DATA pin high
TPS62420-Q1 特性
- Qualified for Automotive Applications
- High Efficiency—Up to 95%
- VIN Range From 2.5 V to 6 V
- 2.25-MHz Fixed Frequency Operation
- Output Current 400 mA and 600 mA
- Adjustable Output Voltage From 0.6 V to VIN
- Pin Selectable Output Voltage Supports Simple Dynamic Voltage Scaling
- EasyScale Optional One-Pin Serial Interface
- Power Save Mode at Light Load Currents
- 180° Out of Phase Operation
- Output Voltage Accuracy in PWM Mode ±1%
- Typical 32-µA Quiescent Current for Both Converters
- 100% Duty Cycle for Lowest Dropout
- Available in a 10-Pin QFN (3mm×3mm)
TPS62420-Q1 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS62420QDRCRQ1 |
ACTIVE |
-40 to 125 |
1.15 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
OET |
TPS62420-Q1 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 |
| TPS62420QDRCRQ1 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
|
TPS62420QDRCRQ1 |
TPS62420-Q1 应用技术支持与电子电路设计开发资源下载
- TPS62420-Q1 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)
