The TPS7A2550DRVR is a Texas Instruments 300mA 18V ultra-low IQ LDO with 5.0V fixed output, 2uA quiescent current, 340mV dropout, power-good output, and 1% accuracy. Packaged in 6-pin WSON, -40C to +125C.<\/p>\n
| Salida<\/td>\n | 5.0 V fixed<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||
| Current<\/td>\n | 300 mA<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||
| Dropout<\/td>\n | 340 mV max @ 300mA<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||
| IQ<\/td>\n | 2 uA<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||
| Input Range<\/td>\n | 2.4 V to 18 V<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||
| Accuracy<\/td>\n | 1%<\/td>\n<\/tr>\n<\/table>\nCaracter\u00edsticas<\/h2>\nAplicaciones<\/h2>\nProduct Overview The TPS7A2550DRVR is a Texas Instruments 300mA 18V ultra-low IQ LDO with 5.0V fixed output, 2uA quiescent current, 340mV dropout, power-good output, and 1% accuracy. Packaged in 6-pin WSON, -40C to +125C. Key Specifications Output 5.0 V fixed Current 300 mA Dropout 340 mV max @ 300mA IQ 2 uA Input Range 2.4 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,32],"tags":[554],"chip_brand":[138],"class_list":["post-8905","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","tag-tps7a2550drvr","chip_brand-ti"],"acf":{"brief_explanation":"300mA LDO, 5V fixed, 2uA IQ, 18V input, PG, WSON-6","date_code":"","package_case":"6-Pin WSON (2.0 x 2.0 x 0.7 mm)","in_stock":12000,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps7a25.pdf","price":"$0.290 @ 1ku","product_introduction":"The TPS7A2550DRVR is a Texas Instruments 300mA low-dropout linear regulator with 5.0V fixed output in a 6-pin WSON package. The standout feature is the 2uA quiescent current, among the lowest for 18V-input LDOs, making it ideal for always-on battery-powered and industrial systems where standby power consumption is critical. The 2.4V to 18V input range supports direct connection to 12V and 24V industrial bus rails, as well as multi-cell battery packs. The 340mV maximum dropout at full 300mA load allows efficient operation with minimal headroom. The 1% output accuracy over temperature provides reliable supply for microcontroller and sensor references. The power-good (PG) open-drain output can hold an MCU in reset until the output is valid, enabling controlled power sequencing. Active overshoot pulldown prevents output voltage overshoot during transient load conditions. Built-in current limit and thermal shutdown protect against fault conditions. The WSON package with exposed thermal pad provides good power dissipation in a compact 2x2mm footprint. Packaged in 6-pin WSON rated for -40C to +125C.","working_principle":"The TPS7A25 uses a PMOS pass transistor for low dropout operation. The error amplifier compares a resistive divider tap of the output voltage with an internal bandgap reference, driving the PMOS gate to maintain regulation. The ultra-low 2uA quiescent current is achieved by operating the error amplifier and reference in a sub-threshold bias regime, consuming minimal current while maintaining regulation. When the output voltage drops below the PG threshold (typically 95% of nominal), the PG open-drain output pulls low, signaling power-not-good to the system. The PG pin can be wire-ORed with other PG outputs for multi-rail sequencing. The current limit circuit monitors the pass transistor current and reduces the gate drive when the limit is reached, operating in constant-current mode during overloads. Thermal shutdown disables the pass transistor when junction temperature exceeds the threshold (typically 165C), with automatic recovery when the device cools below the hysteresis point.","pin_description":"
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