The TPS71501 low-dropout (LDO) voltage regulators offer the benefits of high input voltage, low dropout voltage, low-power operation, and miniaturized packaging. The device, which operates over an input range of 2.5 V to 24 V, is stable with any capacitor (≥0.47 µF). The low dropout voltage and low quiescent current allow operation at extremely low power levels. Therefore, the devices are ideal for powering battery-management ICs. Specifically, because the devices are enabled as soon as the applied voltage reaches the minimum input voltage, the output is quickly available to power continuously operating battery-charging ICs.

The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the low dropout voltage, typically 415 mV at 50 mA of load current, is directly proportional to the load current. The low quiescent current (3.2 µA typically) is stable over the entire range of output load current (0 mA to 50 mA).

• Controlled Baseline
  • One Assembly Site
  • One Test Site
  • One Fabrication Site
• Extended Temperature Performance of –55°C to 125°C
• Enhanced Diminishing Manufacturing Sources (DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree(1)
• 24-V Maximum Input Voltage
• Low 3.2-µA Quiescent Current at 50 mA
• Stable With Any Capacitor (≥ 0.47 µF)
• 50-mA Low-Dropout Regulator
• Adjustable Output Voltage (1.2 V to 15 V)
• Designed to Support MSP430 Families:
  • 1.9-V Version Ensured to be Higher Than Minimum VIN of 1.8 V
  • 2.3-V Version Ensured to Meet 2.2-V Minimum VIN for Flash on MSP430F2xx
  • 3.45-V Version Ensured to be Lower Than Maximum VIN of 3.6 V
  • Wide Variety of Fixed Output Voltage Options to Match VIN to the Minimum Required for Desired MSP430 Speed
• Minimum/Maximum Specified Current Limit
• 5-Pin SC70/SOT-323 (DCK) Package
• For 80-mA Rated Current and Higher Power Package, See TPS715Axx
• APPLICATIONS
  • Ultra-Low Power Microcontrollers
  • Cellular/Cordless Handsets
  • Portable/Battery-Powered Equipment

(1) Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits. All other trademarks are the property of their respective owners.