Related Manuals for Toshiba TCR15AG Series
Summary of Contents for Toshiba TCR15AG Series
- Page 1 RD030-RGUIDE-02 LDO Regulator TCR15AG (fixed output voltage type) Application & Circuit Reference Guide RD030-RGUIDE-02 © 2019 2019-05-08 1 / 18 Toshiba Electronic Devices & Storage Corporation Rev.2...
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Page 2: Table Of Contents
APPLICATION CIRCUIT EXAMPLE AND BILL OF MATERIALS ........5 2.1. Application circuit example ................... 5 2.2. Bill of materials ..................... 5 MAJOR FEATURES OF THE TCR15AG SERIES ............6 3.1. pin ........................ 6 BIAS 3.2. Achieving a high PSRR and the influence of an output capacitor on the PSRR ..9 3.3. -
Page 3: Overview
CMOS image sensors for smartphone applications. In addition, the TCR15AG series offers 46 LDO regulators with a fixed output voltage from 0.65V to 3.6V to meet a wide range of application requirements. While providing accurate voltage regulation, all the LDO regulators of the TCR15AG series are available in an ultra-small, thin-profile WCSP package. -
Page 4: Target Applications
RD030-RGUIDE-02 Furthermore, the TCR15AG series has a drive capability of up to 1.5 A and thus meets the current requirement of CMOS image sensors, and provides overcurrent protection, thermal shutdown, inrush current limiting, undervoltage lockout, and auto output discharge. This reference guide uses the TCR15AG (fixed voltage type) LDO regulator as an example to describe the major features and characteristics of the TCR15AG series. -
Page 5: Application Circuit Example And Bill Of Materials
1.0 x 0.5 1.0μF Ceramic, 10V, ±10% ― (0402) BIAS 1.6 x 0.8 4.7μF Ceramic, 10V, ±10% ― (0603) 1.6 x 0.8 4.7μF Ceramic, 10V, ±10% ― (0603) © 2019 2019-05-08 5 / 18 Toshiba Electronic Devices & Storage Corporation Rev.2... -
Page 6: Major Features Of The Tcr15Ag Series
Due to this circuit configuration, the TCR15AG series provides much lower dropout voltage than typical CMOS LDO regulators and thus helps reduce thermal loss. As a result, despite the ultra-small WCSP package, the TCR15AG series has a current drive capability of 1.5A. Being independent of the input of the LDO regulator, the V... - Page 7 Voltage supply Figure 3.2 Gate voltage supply of the internal MOSFET of an LDO regulator with the V BIAS Figure 3.3 curve with different V voltages BIAS © 2019 2019-05-08 7 / 18 Toshiba Electronic Devices & Storage Corporation Rev.2...
- Page 8 BIAS at a proper voltage even in this situation, a 1μF or greater capacitor should be placed to the V BIAS pin as shown in Figure 2.1. © 2019 2019-05-08 8 / 18 Toshiba Electronic Devices & Storage Corporation Rev.2...
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Page 9: Achieving A High Psrr And The Influence Of An Output Capacitor On The Psrr
The amount of decrease in the PSRR is determined by the frequency characteristics of an error amplifier used in the internal feedback loop of an LDO regulator. The TCR15AG series has a PSRR about 55dB even at 100kHz with the recommended output capacitor (C ) value of 4.7μF. -
Page 10: Achieving A Fast High-Load Transient Response
MOSFET with a supply voltage from the VBIAS pin separate from VIN. With a low dropout voltage performance, the TCR15AG series can regulate a low output voltage. LDO regulators with a low output voltage are commonly used for SoCs, memories, and other high-speed digital signal processing applications, which is typically up and down rapid change in power consumption. - Page 11 The fast load transient response and the ability to provide a low output voltage make the TCR15AG series suits a power supply for high-speed digital signal processing applications, including SoCs and the digital core (control) of CMOS image sensors.
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Page 12: Output Voltage
The TCR15AG series provides fixed-voltage LDO regulators selectable in 0.05V increments at voltages lower than 1.4V and around the standard power supply voltages such as 1.8V and 3.3V. Therefore, the TCR15AG series offers you to select an LDO regulator with an output voltage that best matches your power supply requirement. - Page 13 The typical output voltage and its accuracy are specified under the test conditions given in a datasheet. It should be noted that the output voltage may drop if the output current is higher than the actual applications. © 2019 2019-05-08 13 / 18 Toshiba Electronic Devices & Storage Corporation Rev.2...
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Page 14: Design Considerations
● Overcurrent protection and thermal shutdown The TCR15AG series has feedback loops for overcurrent protection and thermal shutdown. It should be noted that these features are not intended to guarantee that the device is kept below the absolute maximum ratings. -
Page 15: Product Overview
CMOS process, which feature an ultra-low dropout, fast load transient response, and inrush current limiting. The TCR15AG series offers 46 LDO regulators with a fixed voltage of 0.65V to 3.6V and a maximum output current of 1.5A and provides overcurrent protection, thermal shutdown, inrush current limiting, undervoltage lockout, and auto output discharge. - Page 16 2.95 TCR15AG13 TCR15AG30 TCR15AG135 1.35 TCR15AG305 3.05 TCR15AG14 TCR15AG31 TCR15AG15 TCR15AG32 TCR15AG16 TCR15AG325 3.25 TCR15AG17 TCR15AG33 TCR15AG175 1.75 TCR15AG335 3.35 TCR15AG18 TCR15AG34 1.85 TCR15AG185 TCR15AG35 TCR15AG19 TCR15AG36 © 2019 2019-05-08 16 / 18 Toshiba Electronic Devices & Storage Corporation Rev.2...
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Page 17: Internal Block Diagram
GND via a pulldown resistor. Ground Bias power supply pin. For stable operation, add a bias capacitor of 1.0μF BIAS or greater (with an ESR of 1.0Ω or less). © 2019 2019-05-08 17 / 18 Toshiba Electronic Devices & Storage Corporation Rev.2... - Page 18 Terms of Use This terms of use is made between Toshiba Electronic Devices and Storage Corporation (“We”) and customers who use documents and data that are consulted to design electronics applications on which our semiconductor devices are mounted (“this Reference Design”).