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TPS62004DGSR PDF预览

TPS62004DGSR

更新时间： 2024-02-11 14:53:26
品牌 Logo 应用领域
德州仪器 - TI 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管功效DC-DC转换器
页数 文件大小 规格书
25页 469K
描述
HIGH-EFFICIENCY STEP-DOWN LOW POWER DC-DC CONVERTER

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TPS62004DGSR 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：MSOP
包装说明：MSOP-10针数：10
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：0.7Is Samacsys：N
其他特性：PFM CONTROL TECHNIQUE IS ALSO POSSIBLE模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：5.5 V最小输入电压：2 V
标称输入电压：3.6 VJESD-30 代码：S-PDSO-G10
JESD-609代码：e4长度：3 mm
湿度敏感等级：1功能数量：1
端子数量：10最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：1.6 A
最大输出电压：1.56 V最小输出电压：1.455 V
标称输出电压：1.5 V封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP10,.19,20
封装形状：SQUARE封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：BUCK
最大切换频率：1000 kHz技术：MOS
温度等级：INDUSTRIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

TPS62004DGSR 数据手册

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SLVS294C − SEPTEMBER 2000 − REVISED SEPTEMBER 2003  
current flowing backward through the inductance which increases the efficiency. An antiringing switch across  
the inductor prevents parasitic oscillation caused by the residual energy stored in the inductance (see Figure  
12).  
NOTE:  
The antiringing switch is only activated in the fixed output voltage versions. It is not enabled for the  
adjustable output voltage version TPS62000.  
soft start  
As the enable pin (EN) goes high, the soft-start function generates an internal voltage ramp. This causes the  
start-up current to slowly rise preventing output voltage overshoot and high inrush currents. The soft-start  
duration is typical 1 ms (see Figure 13). When the soft-start function is completed, the error amplifier is  
connected directly to the internal voltage reference.  
enable  
Logic low on EN forces the TPS6200x into shutdown. In shutdown, the power switch, drivers, voltage reference,  
oscillator, and all other functions are turned off. The supply current is reduced to less than 1 µA in the shutdown  
mode.  
undervoltage lockout  
An undervoltage lockout circuit provides the save operation of the device. It prevents the converter from turning  
on when the voltage on V is less than typically 1.6 V  
IN  
power good comparator  
The power good (PG) comparator has an open drain output capable of sinking typically 10 µA. The PG is only  
active when the device is enabled (EN = high). When the device is disabled (EN = low), the PG pin is high  
impedance.  
The PG output is only valid after a 100 µs delay after the device is enabled and the supply voltage is greater  
than 1.2 V. This is only important in cases where the pullup resistor of the PG pin is connected to an external  
voltage source which might cause an initial spike (false high signal) within the first 100 µs after the input voltage  
exceeds 1.2 V. This initial spike can be filtered with a small R-C filter to avoid false power good signals during  
start-up.  
If the PG pin is connected to the output of the TPS62000 with a pullup resistor, no initial spike (false high signal)  
occurs and no precautions have to be taken during start-up.  
The PG pin becomes active high when the output voltage exceeds typically 94.5% of its nominal value. Leave  
the PG pin unconnected when not used.  
no load operation  
In case the converter operates in the forced PWM mode and there is no load connected to the output, the  
converter will regulate the output voltage by allowing the inductor current to reverse for a short period of time.  
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1...3456789...25

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