TPS5103IDBR 供应商
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TPS5103IDBR
品牌：TI 封装/批号：原厂原装/22+ -
TPS5103IDBR
品牌：TI 封装/批号：SSOP-20/7 -
TPS5103IDBR
品牌：TI 封装/批号：SOP20/2019+ -
TPS5103IDBR
品牌：TI 封装/批号：SSOP-20/22+ -
TPS5103IDBR
品牌： 封装/批号：/23+ -
TPS5103IDBR
品牌： 封装/批号：/23+
TPS5103IDBR 属性参数
- 标准包装：2,000
- 类别：集成电路 (IC)
- 家庭：PMIC - 稳压器 - DC DC 切换控制器
- 系列：-
- PWM 型：电压模式
- 输出数：1
- 频率 - 最大：500kHz
- 占空比：95%
- 电源电压：4.5 V ~ 25 V
- 降压：是
- 升压：无
- 回扫：无
- 反相：无
- 倍增器：无
- 除法器：无
- Cuk：无
- 隔离：无
- 工作温度：-40°C ~ 85°C
- 封装/外壳：20-SSOP（0.209"，5.30mm 宽）
- 包装：带卷 (TR)
- 配用：296-10924-ND - EVAL MOD FOR TPS5103
产品特性
- Step-Down DC-DC Converter
- Three Operation-Modes
- Heavy Load: Fixed Frequency PWM Hysteretic (User Selectable)
- Fixed Frequency PWM
- Hysteretic (User Selectable)
- Light Load: Skip Mode
- Skip Mode
- 4.5-V to 25-V Input Voltage Range
- Adjustable Output Voltage Down to 1.2 V
- 95% Efficiency
- Standby Control
- Overcurrent Protection
- UVLO for Internal 5-V Regulation
- Low-Standby Current . . . 0.5 mA Typical
- TA = -40°C to 85°C
产品概述
The TPS5103 is a synchronous buck dc/dc controller, designed for notebook PC system power. The controller
has three user-selectable operation modes available: hysteretic mode, fixed-frequency PWM control, or SKIP
control.
In high-current applications, where fast transient response is advantageous for reducing bulk capacitance, the
hysteretic mode is selected by connecting the RT pin to VREF5. Selecting the PWM/SKIP modes for less
demanding transient applications is ideal for conserving notebook battery life under light load conditions. The
device includes high-side and low-side MOSFET drivers capable of driving low r ds(on) N-channel MOSFETs.
The user-selectable overcurrent protection (OCP) threshold is set by an external TRIP-pin resistor in order to
protect the system. The TPS5103 is configured so that a current-sense resistor is not required, improving the
operating efficiency.