TPS781
- Low IQ: 1µA
- 150mA, Low-Dropout Regulator with Pin-Selectable Dual Voltage Level Output
- Low Dropout: 200mV at 150mA
- 3% Accuracy Over Load/Line/Temperature
- Available in Dual-Level, Fixed Output Voltages from 1.5V to 4.2V Using Innovative Factory EPROM Programming
- Available in an Adjustable Version from 1.22V to 5.25V or a Dual-Level Output Version
- VSET Pin Toggles Output Voltage Between Two Factory-Programmed Voltage Levels
- Stable with a 1.0µF Ceramic Capacitor
- Thermal Shutdown and Overcurrent Protection
- CMOS Logic Level-Compatible Enable Pin
- Available in DDC (TSOT23-5) or DRV (2mm × 2mm SON-6) Package Options
- APPLICATIONS
- TI MSP430 Attach Applications
- Power Rails with Programming Mode
- Dual Voltage Levels for Power-Saving Mode
- Wireless Handsets, Smartphones, PDAs, MP3 Players, and Other Battery-Operated Handheld Products
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The TPS781 family of low-dropout (LDO) regulators offer the benefits of ultralow power (IQ = 1µA), miniaturized packaging (2×2 SON-6), and selectable dual-level output voltage levels. An adjustable version is also available, but does not have the capability to shift voltage levels.
The VSET pin allows the end user to switch between two voltage levels on-the-fly through a microprocessor-compatible input. This LDO is designed specifically for battery-powered applications where dual-level voltages are needed. With ultralow IQ (1µA), microprocessors, memory cards, and smoke detectors are ideal applications for this device.
The ultralow-power and selectable dual-level output voltages allow designers to customize power consumption for specific applications. Designers can now shift to a lower voltage level in a battery-powered design when the microprocessor is in sleep mode, further reducing overall system power consumption. The two voltage levels are preset at the factory through a unique architecture using an EPROM. The EPROM technique allows for numerous output voltage options between VSET low (1.5V to 4.2V) and VSET high (2.0V to 3.0V) in the fixed output version only. See the table in this data sheet or consult with your local factory representative for exact voltage options and ordering information; minimum order quantities may apply.
The TPS781 series are designed to be compatible with the TI MSP430 and other similar products. The enable pin is compatible with standard CMOS logic. This LDO is stable with any output capacitor greater than 1.0µF. Therefore, implementations of this device require minimal board space because of miniaturized packaging and a potentially small output capacitor. The TPS781 series IQ (1µA) also come with thermal shutdown and current limit to protect the device during fault conditions. All packages have an operating temperature range of TJ = -40°C to +125°C. For high-performance applications requiring a dual-level voltage option, consider the TPS780 series, with an IQ of 500nA and dynamic voltage scaling.
관심 가지실만한 유사 제품
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | 150mA, LDO Reg, Ultralow-Power, Iq 1uA w/ Pin-Selectable, Dual-Level Output Volt datasheet (Rev. B) | 2008/05/11 | |
| White paper | Understanding the Foundations of Quiescent Current in Linear Power Systems | 2021/02/18 | ||
| Application note | LDO Noise Demystified (Rev. B) | PDF | HTML | 2020/08/18 | |
| Application note | A Topical Index of TI LDO Application Notes (Rev. F) | 2019/06/27 | ||
| Application note | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017/08/09 | |
| EVM User's guide | TPS78101 EVM | 2008/04/28 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TIDEP0024 — AM437x 저전력 일시 중지 모드(LPDDR2 포함)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOT-23-THN (DDC) | 5 | Ultra Librarian |
| WSON (DRV) | 6 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
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