TS51221 Datasheet, PDF (1/18 Pages) Semtech Corporation – High Efficiency Regulator IC for Wireless Power Receiver Applications

TS51221
High Efficiency Regulator IC for
Wireless Power Receiver Applications
TRIUNE PRODUCTS
Features
Description
• 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
V_OUT over-voltage
• Low external component count
The TS51221 is a high-efficiency regulator device for low-
power 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.
Summary Specification
• Junction operating temperature-40 °Cto 125 °C
• Packaged in a 16pin QFN (3x3)
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
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