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TPS737 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS737 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 50 page  TPS737 1A, Low-Dropout Regulator With Reverse Current Protection 1 Features • Stable with 1μF or larger ceramic output capacitor • Input voltage range: 2.2V to 5.5V • Ultra-low dropout voltage – Legacy silicon: 130mV typical at 1A – New silicon: 122mV typical at 1A • Excellent load transient response—even with only 1μF output capacitor • NMOS topology delivers low reverse leakage current • Initial accuracy: 1% • Overall accuracy over line, load, and temperature – Legacy silicon: 3% – New silicon: 1.5% • Less than 20nA typical IQ in shutdown mode • Thermal shutdown and current limit for fault protection • Available in multiple output voltage versions: – Adjustable output: 1.20V to 5.5V – Custom outputs available using factory package-level programming 2 Applications • Point-of-load regulation for DSPs, FPGAs, ASICs, and microprocessors • Post-regulation for switching supplies • Portable and battery-powered equipment 3 Description The TPS737 linear low-dropout (LDO) voltage regulator uses an NMOS pass transistor in a voltage- follower configuration. This topology is relatively insensitive to the output capacitor value and ESR, allowing for a wide variety of load configurations. Load transient response is excellent, even with a small 1μF ceramic output capacitor. The NMOS topology also allows for very low dropout. The TPS737 uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. Devices that use the latest manufacturing flow have an updated design with new silicon on the latest TI process technology. Current consumption, when not enabled, is less than 20nA and is designed for portable applications. This device is protected by thermal shutdown and foldback current limit. For applications that require higher output voltage accuracy, consider TI's TPS7A37 1% overall accuracy, 1A low-dropout voltage regulator. Package Information PART NUMBER PACKAGE(1) PACKAGE SIZE(2) TPS737 DRB (VSON, 8) 3mm × 3mm DCQ (SOT-223, 6) 6.5mm × 7.06mm DRV (WSON, 6) 2mm × 2mm (1) For more information, see the Mechanical, Packaging, and Orderable Information . (2) The package size (length × width) is a nominal value and includes pins, where applicable. TPS737xx GND EN FB IN OUT V IN V OUT Optional 1.0 F m OFF ON Typical Application Circuit TPS737 SBVS067W – JANUARY 2006 – REVISED AUGUST 2025 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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