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参数资料
| 型号： | TPS62238DRY |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | 1 X 1.50 MM, 0.60 MM HEIGHT, PLASTIC, MO-287UFAD, SON-6 |
| 文件页数： | 23/32页 |
| 文件大小： | 1073K |
| 代理商： | TPS62238DRY |
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TPS62231, TPS62230, TPS62232, TPS62233, TPS62234, TPS62235
TPS62236, TPS62237, TPS62238, TPS62239, TPS622310, TPS622311
TPS622312, TPS622313, TPS622314, TPS622315, TPS622316, TPS622317
www.ti.com
SLVS941D – APRIL 2009 – REVISED AUGUST 2010
DISSIPATION RATINGS
(1)
POWER RATING
DERATING FACTOR
PACKAGE
RqJA
FOR TA ≤ 25°C
ABOVE TA = 25°C
1 × 1.5 SON
234°C/W(2)
420 mW
4.2 mW/°C
(1)
Maximum power dissipation is a function of TJ(max), qJA and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = [TJ(max) – TA] /qJA.
(2)
This thermal data is measured with high-K board (4 layers board according to JESD51-7 JEDEC standard).
RECOMMENDED OPERATING CONDITIONS
operating ambient temperature TA = –40 to 85°C (unless otherwise noted)
(1)
MIN
NOM
MAX
UNIT
Supply voltage VIN
(2)
2.05
6
V
Effective inductance
2.2
mH
Effective capacitance
2.0
4.7
mF
VOUT ≤ VIN -1 V
(3)
500 mA maximum IOUT
(4)
3.0
3.6
Recommended minimum
350mA maximum IOUT
(5)
2.5
2.7
V
supply voltage
VOUT ≤ 1.8V
60 mA maximum output current(5)
2.05
Operating virtual junction temperature range, TJ
–40
125
°C
(1)
In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may
have to be derated. Maximum ambient temperature (TA(max)) is dependent on the maximum operating junction temperature (TJ(max)), the
maximum power dissipation of the device in the application (PD(max)), and the junction-to-ambient thermal resistance of the part/package
in the application (qJA), as given by the following equation: TA(max) = TJ(max) – (qJA × PD(max)).
(2)
The minimum required supply voltage for startup is 2.05 V. The part is functional down to the falling UVL (Under Voltage Lockout)
threshold.
(3)
For a voltage difference between minimum VIN and VOUT of ≥ 1 V
(4)
Typical value applies for TA = 25°C, maximum value applies for TA = 70°C with TJ ≤ 125°C, PCB layout needs to support proper thermal
performance.
(5)
Typical value applies for TA = 25°C, maximum value applies for TA = 85°C with TJ ≤ 125°C, PCB layout needs to support proper thermal
performance.
Copyright 2009–2010, Texas Instruments Incorporated
3
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相关代理商/技术参数 |
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| TPS62238DRYR | 功能描述:直流/直流开关转换器 3MHz 500mA Step- Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS62238DRYT | 功能描述:直流/直流开关转换器 3MHz 500mA Step- Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS62239DRYR | 功能描述:直流/直流开关转换器 3MHz 500mA Step- Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS62239DRYT | 功能描述:直流/直流开关转换器 3MHz 500mA Step- Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS62239EVM-574 | 功能描述:电源管理IC开发工具 TPS62239 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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