TPS61087

Product Folder Order Now Technical Documents Tools & Software Support & Community TPS61087 SLVS821E – MAY 2008 – REVISED MAY 2019 TPS61087 650-kHz,1.2-MHz, 18.5-V Step-Up DC-DC Converter With 3.2-A Switch 1 Features 1 2.5-V to 6-V Input Voltage Range 18.5-V Boost Converter With 3.2-A Switch Current 650-kHz, 1.2-MHz Selectable Switching Frequency Adjustable Soft-Start Thermal Shutdown Undervoltage Lockout 10-Pin QFN and Thin QFN Packages 3 Description The TPS61087 is a high-frequency, high-efficiency DC-DC converter with an integrated 3.2-A, 0.13-Ω power switch capable of providing an output voltage up to 18.5 V. The selectable frequency of 650 kHz or 1.2 MHz allows the use of small external inductors and capacitors and provides fast transient response. The external compensation allows optimization of the application for specific conditions. A capacitor connected to the soft-start pin minimizes inrush current at startup. 2 Applications Handheld Devices GPS Receivers Digital Still Cameras Portable Applications DSL Modems PCMCIA Cards TFT LCD Bias Supply Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS61087 VSON (10) WSON (10) 3.00 mm × 3.00 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. Simplified Schematic L 3.3 mH VIN 2.5 V to 6 V Cin 2* 10 mF 16 V Cby 1 mF 16 V 8 IN 3 EN SW 6 7 SW 9 FREQ 4 AGND 5 PGND 2 FB COMP 1 SS 10 TPS61087 D SL22 R1 200 kW Css 100 nF Rcomp 100...