TPS71550-DIE
www.ti.com SLVSBG8 – JULY 2012 LOW-DROPOUT LINEAR REGULATOR
Check for Samples: TPS71550-DIE FEATURES 1 24-V Maximum Input Voltage
Low Quiescent Current
Low-Dropout Regulator
Available in 5 V
Minimum/Maximum Specified Current Limit APPLICATIONS Ultra-Low Power Microcontrollers
Cellular/Cordless Handsets
Portable/Battery-Powered Equipment
xxx DESCRIPTION
The TPS71550 low-dropout (LDO) voltage regulator offers the benefits of high input voltage, low-dropout voltage,
low-power operation, and miniaturized packaging. The TPS71550, which operates over an input range of 5 V to
24 V, is stable with any capacitor (≥ 0.47 µF). The low-dropout voltage and low quiescent current allow
operations at extremely low power levels. Therefore, the TPS71550 is ideal for powering battery management
ICs. Specifically, since the TPS71550 is 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The usual PNP pass transistor has been replaced by a PMOS pass element.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 is stable over the entire range of output load current.
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ORDERING INFORMATION (1) (1)
(2) PRODUCT PACKAGE
DESIGNATOR PACKAGE TPS71550 TD (2) Bare die in waffle pack ORDERABLE PART NUMBER PACKAGE QUANTITY TPS71550TDB1 400 TPS71550TDB2 10 For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI …