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TS51221

Semtech
Part Number TS51221
Manufacturer Semtech
Description High Efficiency Regulator IC
Published Apr 13, 2016
Detailed Description TS51221 High Efficiency Regulator IC for Wireless Power Receiver Applications TRIUNE PRODUCTS Features • Fixed outpu...
Datasheet PDF File TS51221 PDF File

TS51221
TS51221

Overview
TS51221 High Efficiency Regulator IC for Wireless Power Receiver Applications TRIUNE PRODUCTS Features • Fixed output voltage choices: 1.
5V, 1.
8V, 2.
5V, 3.
3V, and 5V with +/- 2% output tolerance • Adjustable version output voltage range: 0.
9V to 5.
5V with +/- 1.
5% reference • Wide input voltage range: 4.
5V to 24V • 1MHz +/- 10% fixed switching frequency • Input under voltage lockout • Full protection for over-current, over-temperature, and • VLoOUwT over-voltage external component count Summary Specification • Junction operating temperature -40 °C to 125 °C • Packaged in a 16pin QFN (3x3) Description The TS51221 is a high-efficiency regulator device for lowpower wireless power receiver applications.
The switching frequency of 1MHz enables the use of small filter components resulting in minimal board space and reduced BOM costs.
The TS51221 integrates a wide range of protection circuitry including input supply under-voltage lockout, output voltage soft start, current limit, and thermal shutdown.
Applications • Wireless Charging for portable devices • Wear-ables, medical monitors • Bluetooth headsets • Smart watches Typical Application Circuit DC Supply Application Processor TS51231 TS51221 Application Processor Load TS51221 Final Datasheet April 6, 2015 Transmitter Receiver Rev 1.
1 www.
semtech.
com 1 of 18 Semtech Pinout VSW PGND PGND VSW PIN 1 VSW VCC VCC GND TS51221 VSW VCC BST EN PG NC NC FB Pin Description Pin # 1 2 3 4 Pin Name VSW VCC VCC GND 5 FB 6 NC 7 NC 8 PG 9 EN 10 BST 11 VCC 12 VSW 13 VSW 14 PGND 15 PGND 16 VSW Figure 1: 16 Lead 3x3 QFN, Top View Pin Function Switching Voltage Node Input Voltage Input Voltage GND Feedback Input No Connect No Connect Power Good Output Enable Input Bootstrap Capacitor Input Voltage Switching Voltage Node Switching Voltage Node Power GND Power GND Switching Voltage Node Description Connected to 4.
7uH (typical) inductor Input voltage Input voltage Primary ground for ...


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