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비교 대상 장치보다 업그레이드된 기능을 지원하는 즉각적 대체품
REG103
- NEW DMOS TOPOLOGY:
Ultra Low Dropout Voltage:
115mV Typ at 500mA and 3.3V Output
Output Capacitor NOT Required for Stability - FAST TRANSIENT RESPONSE
- VERY LOW NOISE: 33µVrms
- HIGH ACCURACY: ±2% max
- HIGH EFFICIENCY:
IGND = 1mA at IOUT = 500mA
Not Enabled: IGND = 0.5µA - 2.5V, 2.7V, 3.0V, 3.3V, 5.0V, AND ADJUSTABLE OUTPUT VERSIONS
- FOLDBACK CURRENT LIMIT
- THERMAL PROTECTION
- OUTPUT VOLTAGE ERROR INDICATOR(1)
- SMALL SURFACE-MOUNT PACKAGES: SOT223-5, DDPAK-5, SO-8
- APPLICATIONS
- PORTABLE COMMUNICATION DEVICES
- BATTERY-POWERED EQUIPMENT
- PERSONAL DIGITAL ASSISTANTS
- MODEMS
- BAR-CODE SCANNERS
- BACKUP POWER SUPPLIES
All trademarks are the property of their respective owners.
The REG103 is a family of low-noise, low-dropout, linear regulators with low ground pin current. Its new DMOS topology provides significant improvement over previous designs, including low-dropout voltage (only 115mV typ at full load), and better transient performance. In addition, no output capacitor is required for stability, unlike conventional low-dropout regulators that are difficult to compensate and require expensive low ESR capacitors greater than 1µF.
Typical ground pin current is only 1mA (at IOUT = 500mA) and drops to 0.5µA in not enabled mode. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions. The REG103 has very low output noise (typically 33µVrms for VOUT = 3.3V with CNR = 0.01µF), making it ideal for use in portable communications equipment. On-chip trimming results in high output voltage accuracy. Accuracy is maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (–40°C to +85°C).
The SO-8 version of the REG103 has an ERROR\ pin that provides a power good flag, indicating the regulator is in regulation. The REG103 is well protected—internal circuitry provides a current limit that protects the load from damage. Thermal protection circuitry keeps the chip from being damaged by excessive temperature. In addition to the SO-8 package, the REG103 is also available in the DDPAK and the SOT223-5.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | DMOS 500mA Low-Dropout Regulator datasheet (Rev. D) | 2005/09/22 | |
| Application note | LDO Noise Demystified (Rev. B) | PDF | HTML | 2020/08/18 | |
| Application note | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017/08/09 | |
| Application note | Packaging Limits Range of Linear Regulators | 2010/05/08 | ||
| User guide | DEM-SOT223LDO Demonstration Fixture | 2003/10/15 | ||
| User guide | DEM-TO263LDO Demonstration Fixture | 2003/10/15 | ||
| More literature | DMOS Delivers Dramatic Performance Gains to LDO Regulators (EDN mag) | 2001/02/14 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
DEM-SOT223LDO — DEM-SOT223LDO 호환 최대 양극 출력 LDO(SOT223(DCQ) 패키지)
The Texas Instruments DEM-SOT223LDO demonstration module (DEM) helps designers evaluate the operation and performance of Texas Instruments low-dropout regulators (LDOs). This module is compatible with most positive output LDOs offered in the SOT223 (DCQ) package.
TPS79328EVM — TPS79328 평가 모듈
The purpose of this EVM is to facilitate evaluation of the TPS793xx family of LDO regulators. Each EVM package contains one SLVP191 test board, with either a TPS79301DBV linear regulator or a TPS79328DBV linear regulator, as well as supporting passive components. The TPS79301DBV adjustable device (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| SOIC (D) | 8 | 옵션 보기 |
| SOT-223 (DCQ) | 6 | 옵션 보기 |
| TO-263 (KTT) | 5 | 옵션 보기 |
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
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.