Protects the regulator and upstream power supply during output short circuits or overload conditions.
ceramic capacitor directly at Pin 5 for control loop stability and fast transient response. Bypass Capacitor ( CBYPcap C sub cap B cap Y cap P end-sub
Active-High Enable Input. Drives the regulator into shutdown mode when pulled low. BP/NC dc e2h datasheet
Power Supply Input Pin. Requires a minimum input voltage of 2.5V up to 5.5V. GND Ground Reference. 3 EN
The SMD top-side marking identifies the highly popular Richtek Technology RT9193-18GB , a high-performance, ultra-low-noise CMOS Low Dropout (LDO) linear voltage regulator. Packaged in a compact SOT-23-5 , this integrated circuit delivers a stable 1.8V output at up to 300mA . Protects the regulator and upstream power supply during
Микросхема RT9193-18GB купить в интернет-магазине
Operating with a wide input voltage range, the maintains a stable regulated output even as battery voltage declines over time. Absolute Maximum Ratings Input Supply Voltage ( VINcap V sub cap I cap N end-sub ): -0.3V to 6.0V Enable Input Voltage ( VENcap V sub cap E cap N end-sub ): -0.3V to VINcap V sub cap I cap N end-sub Power Dissipation ( PDcap P sub cap D ): 400mW at Junction Temperature ( TJcap T sub cap J ): -40°C to +125°C Lead Temperature (Soldering, 10s): 260°C Recommended Operating Conditions Input Voltage Range ( VINcap V sub cap I cap N end-sub ): 2.5V to 5.5V Operating Ambient Temperature ( TAcap T sub cap A ): -40°C to +85°C Electrical Characteristics Below are the key operational metrics measured at unless otherwise specified: Conditions Output Voltage VOUTcap V sub cap O cap U cap T end-sub Output Current IOUTcap I sub cap O cap U cap T end-sub Continuous load Dropout Voltage VDROPcap V sub cap D cap R cap O cap P end-sub Quiescent Current IQcap I sub cap Q Shutdown Current ISHDNcap I sub cap S cap H cap D cap N end-sub Line Regulation ΔVLINEcap delta cap V sub cap L cap I cap N cap E end-sub Load Regulation ΔVLOADcap delta cap V sub cap L cap O cap A cap D end-sub Power Supply Rejection PSRR Output Noise eNe sub cap N Thermal Shutdown TSDcap T sub cap S cap D end-sub Junction temperature rising 3. Notable Features & Benefits 1. Ultra-Low Noise Performance Drives the regulator into shutdown mode when pulled low
For RF transceivers, Bluetooth modules, and wireless networking hardware, input supply ripples can degrade signal integrity. The addition of a 10nF bypass capacitor connected to Pin 4 drops the output noise floor down to a mere . 2. Low Dropout (LDO) Profile