TS30011/12/13 High Efficiency 1A/2A/3A Current-Mode Synchronous Buck DC/DC Converter, 1MHz TRIUNE PRODUCTS Features Description Fixed output voltage choices: 1.5V, 1.8V, 2.5V, 3.3V, and 5V The TS30011 (1A), TS30012 (2A) and TS30013 (3A) are DC/DC with +/- 2% output tolerance synchronous switching regulator with fully integrated power Adjustable version output voltage range: 0.9V to (VCC switches, internal compensation, and full fault protection. The 1V) with +/-1.5% reference. switching frequency of 1MHz enables the use of small filter Wide input voltage range components resulting in minimal board space and reduced TS30011/12: 4.5V to 24V (26.4V Abs Max BOM costs. TS30013: 4.5V to 18V (20V Abs Max) 1MHz +/- 10% fixed switching frequency The TS30011/12/13 utilizes current mode feedback in normal Continuous output current: 1A (TS30011), 2A (TS30012) regulation PWM mode. When the regulator is placed in and 3A (TS30013) standby (EN is low), the device draws less than 10uA quiescent High efficiency up to 95% current. Current mode PWM control with PFM mode for improved The TS30011/12/13 integrates a wide range of protection light load efficiency circuitry including input supply under-voltage lockout, output Voltage supervisor for VOUT reported at the PG pin Input supply under voltage lockout voltage soft start, current limit, and thermal shutdown. Soft start for controlled startup with no overshoot The TS30011/12/13 includes supervisory reporting through Cycle-by-cycle currrent limit with frequency foldback the PG (Power Good) open drain output to interface other Full protection for over-temperature and VOUT components in the system. over-voltage Less than 10uA in standby mode Summary Specification Low external component count Junction operating temperature -40 C to 125 C Packaged in a 16pin QFN (3x3) Applications On-card switching regulators Set-top box, DVD, LCD, LED supply Industrial power supplies Typical Application Circuit TS30011/12/13 1 of 18 www.semtech.com Final Datasheet Rev 2.0 August 08, 2016 SemtechPin Configuration Figure 1: 16 Lead 3x3 QFN, Top View Pin Description Pin Pin Symbol Function Description 1 VSW Switching Voltage Node Connected to 4.7uH (typical) inductor 2 VCC Input Voltage Input voltage 3 VCC Input Voltage Input voltage 4 GND GND Primary ground for the majority of the device except the low-side power FET Regulator FB Input. Connects to VOUT for fixed mode and the output resistor 5 FB Feedback Input divider for adjustable mode 6 NC No Connect Not Connected 7 NC No Connect Not Connected 8 PG Power Good Output Open-drain output Above 2.2V the device is enabled. GND the EN pin to put device in standby EN Enable Input 9 mode. Includes internal pull-up resistor. Bootstrap capacitor for the high-side FET gate driver. Connect a ceramic Bootstrap Capacitor 10 BST capacitor in the range 15 nF - 200 nF from BST pin to VSW pin 11 VCC Input Voltage Input Voltage 12 VSW Switching Voltage Node Connected to 4.7uH (typical) inductor 13 VSW Switching Voltage Node Connected to 4.7uH (typical) inductor 14 PGND Power GND GND supply for internal low-side FET/integrated diode 15 PGND Power GND GND supply for internal low-side FET/integrated diode 16 VSW Switching Voltage Node Connected to 4.7uH (typical) inductor 17 PAD Thermal PAD Connected internally to GND TS30011/12/13 2 of 18 www.semtech.com Final Datasheet Rev 2.0 August 08, 2016 Semtech