TPS63070RNMT

Order Now Product Folder Support & Community Tools & Software Technical Documents TPS63070 SLVSC58B – JUNE 2016 – REVISED MARCH 2019 TPS63070 2-V to 16-V Buck-Boost Converter With 3.6-A Switch Current 1 Features 2 Applications • • • • • • • • • • • • • 1 • • • • • • • • • • • • • Input Voltage Range: 2.0 V to 16 V Output Voltage Range: 2.5 V to 9 V Up to 95% Efficiency +/- 1% dc accuracy in PWM mode +3% / -1% dc accuracy in PFM mode 2 A Output Current in Buck Mode 2 A Output Current in Boost Mode (VIN = 4 V; Vout = 5 V) Precise ENABLE input allows – user defined undervoltage lockout – exact sequencing Automatic Transition Between Step Down and Boost Mode Typical Device Quiescent Current: 50 μA Fixed and Adjustable Output Voltage Options Output Discharge Option Power Save Mode for Improved Efficiency at Low Output Power Forced Fixed Frequency Operation at 2.4 MHz and Synchronization Option Power Good Output VSEL simply allows output voltage change Load Disconnect During Shutdown Overtemperature Protection Input / Output Overvoltage Protection Available in QFN Package 3 Description The TPS6307x is a high efficiency, low quiescent current buck-boost converter suitable for applications where the input voltage can be higher or lower than the output voltage. Output currents can go as high as 2 A in boost mode and in buck mode. The buck-boost converter is based on a fixed frequency, pulse-widthmodulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over a wide load current range. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is available in a 2.5 mm x 3 mm QFN package. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS63070 VQFN 2.5 mm x 3 mm TPS630701 VQFN 2.5 mm x 3 mm TPS630702 VQFN 2.5 mm x 3 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. Simplified Schematic Efficiency vs Output Current; Vo = 5 V L 100% 1.5 µH VIN = 2.0 V to 16 V C1 10 µF CIN 2x10 µF 0805 90% L2 TPS63070 VOUT VIN FB VSEL FB2 VOUT = 2.5 V to 9 V 10 µF 0603 0603 R5 C4 R1 COUT 3x22 µF 0805 R4 R2 100 kΩ 10 kΩ EN PS/SYNC CVAUX VAUX PG 80% 70% Efficiency L1 Dual Li-Ion Applications Industrial Metering Equipment DSC's and Camcorders Notebook Computers Ultra Mobile PC's and Mobile Internet Devices Personal Medical Products 60% 50% 40% 3V 4.2 V 5V 7V 9V 12 V 30% PGND 20% GND 10% 100 nF Copyright © 2016, Texas Instruments Incorporated 0 100P 1m 10m 100m Output Current (A) 1 2 D001 1 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. TPS63070 SLVSC58B – JUNE 2016 – REVISED MARCH 2019 www.ti.com Table of Contents 1 2 3 4 5 6 7 8 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Device Comparison Table..................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 2 3 3 4 7.1 7.2 7.3 7.4 7.5 7.6 4 4 4 5 6 8 Absolute Maximum Ratings ...................................... ESD Ratings ............................................................ Recommended Operating Conditions....................... Thermal Information ................................................. Electrical Characteristics........................................... Typical Characteristics .............................................. Detailed Description .............................................. 9 8.1 8.2 8.3 8.4 8.5 Overview ................................................................... 9 Functional Block Diagram TPS63070 ....................... 9 Functional Block Diagram TPS630701 ................... 10 Feature Description................................................. 10 Device Functional Modes........................................ 14 9 Application and Implementation ........................ 16 9.1 Application Information............................................ 16 9.2 Typical Application for adjustable version .............. 16 9.3 Typical Application for Fixed Voltage Version ....... 26 10 Power Supply Recommendations ..................... 31 10.1 Thermal Information .............................................. 31 11 Layout................................................................... 32 11.1 Layout Guidelines ................................................. 32 11.2 Layout Example .................................................... 32 12 Device and Documentation Support ................. 33 12.1 12.2 12.3 12.4 12.5 12.6 12.7 Device Support .................................................... Related Links ........................................................ Receiving Notification of Documentation Updates Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 33 33 33 33 33 33 33 13 Mechanical, Packaging, and Orderable Information ........................................................... 34 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision A (August 2016) to Revision B Page • Added Various minor editorial updates and corrections......................................................................................................... 1 • Added TPS630702 Variant..................................................................................................................................................... 1 • Added TPS630702 Variant with "output discharge=on" option .............................................................................................. 3 • Added TPS630702 VOUT info ............................................................................................................................................... 7 • Added TPS630702 VFB info at 3 instances ........................................................................................................................... 7 • Added Parameter Name ROD to output discharge resistance row........................................................................................ 7 • Added Link to TechNote SLVAE62 ...................................................................................................................................... 13 • Added more descriptive text for better understanding.......................................................................................................... 15 • Changed Description of Discharge Feature, reflecting TPS630702..................................................................................... 15 • Changed description of output voltage programming to match EC table............................................................................. 17 • Added table of content for application curves ...................................................................................................................... 20 • Added TPS630702 Variant................................................................................................................................................... 33 Changes from Original (June 2016) to Revision A • 2 Page Added full Production Data .................................................................................................................................................... 1 Submit Documentation Feedback Copyright © 2016–2019, Texas Instruments Incorporated Product Folder Links: TPS63070 TPS63070 www.ti.com SLVSC58B – JUNE 2016 – REVISED MARCH 2019 5 Device Comparison Table Device Number Features Output Voltage Marking TPS63070 output discharge = off adjustable 3070 TPS630701 output discharge = off fixed 5 V 0701 TPS630702 output discharge = on adjustable 0702 6 Pin Configuration and Functions QFN PACKAGE Bottom View Top View 6 FB2 FB2 FB 5 4 3 2 1 PS/S VAUX FB 14 10 PG PG 4 5 11 9 6 VAUX 3 13 GND 2 GND 1 12 VIN 7 10 15 8 L1 9 11 14 PS/S VSEL VOUT 7 13 EN VOUT PGND 8 L2 L2 PGND L1 VIN 12 15 EN VSEL Pin Functions PIN NAME NO. I/O DESCRIPTION EN 14 I Enable input. Pull high to enable the device, pull low to disable the device. FB 5 I Voltage feedback of adjustable versions, must be connected to VOUT on fixed output voltage versions GND 4 L1 11 I Connection for Inductor L2 9 I Connection for Inductor PS/SYNC 1 I Pull to low for forced PWM, pull high for PWM/PFM (power save) mode. Apply a clock signal to synchronize to an external frequency. PG 2 O Open drain power good output PGND VIN Control / logic ground 10 Power ground 12, 13 I Supply voltage for power stage 7,8 O Buck-boost converter output VAUX 3 O Connection for Capacitor of internal voltage regulator. This pin must not be loaded externally. VSEL 15 I Voltage scaling input. A high level on this pin enables a transistor which pulls pin FB2 to GND. FB2 6 O Voltage scaling output. Connect a resistor from FB to FB2 to change the voltage divider ratio on the feedback pin. A logic high level on VSEL will change the output voltage to a higher value. Leave the pin open or connect to GND if not used. VOUT Submit Documentation Feedback Copyright © 2016–2019, Texas Instruments Incorporated Product Folder Links: TPS63070 3 TPS63070 SLVSC58B – JUNE 2016 – REVISED MARCH 2019 www.ti.com 7 Specifications 7.1 Absolute Maximum Ratings over operating junction temperature range (unless otherwise noted) (1) MIN MAX UNIT VIN, PS/SYNC, EN, VSEL –0.3 20 V L1 –0.3 20 V –3 25 V –0.3 12 V L1 (transient for t