NJM2835DL1-05-TE1 - 500mA 5V LDO Regulator | Nisshinbo
부품 번호: NJM2835DL1-05-TE1 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.1882 | $0.19 |
| 10 | $0.17 | $1.70 |
| 100 | $0.15 | $15.00 |
| 500 | $0.13 | $65.00 |
| 1,000 | $0.11 | $110.00 |
| 3,000 | $0.09 | $270.00 |
NJM2835DL1-05-TE1 개요
An LDO (Low-Dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input voltage is very close to the output voltage - the so-called dropout condition. As a subclass of linear regulators, LDOs sit within the broader category of voltage regulators, which themselves fall under power management ICs (PMICs). LDOs are preferred over switching regulators in noise-sensitive analog, audio, RF, and sensor signal-chain applications because they add no switching ripple to the rail, at the cost of dissipating extra energy as heat when VIN is significantly higher than VOUT.
The NJM2835DL1-05-TE1 uses advanced bipolar technology from the NJM2835 family to deliver low noise and high ripple rejection in a small form factor. Internal protection includes current limit, thermal shutdown, and the built-in noise bypass capacitor that allows the 45 uVrms noise specification without an external bypass network. The TO-252-3 (DPAK) package provides a drain-tab thermal pad for board-level heat spreading, and the 2.2 uF minimum ceramic output capacitor requirement supports compact designs.
Typical applications include post-regulation after a DC-DC switching converter in noise-sensitive subsystems, 5 V supply rails for microcontrollers, sensors, and audio codec analog sections, USB-powered devices, point-of-load regulation on industrial 12 V/24 V backplanes, and consumer appliances where a clean 5 V rail is required from a higher-voltage bus. The wide input range also makes it usable on 12 V automotive subsystems (cold-crank tolerant within datasheet limits).
When designing with this part, observe the dropout limit at maximum load (a 500 mA load at low VIN approaches dropout when VIN approaches 5.05 V). Place the input and output capacitors close to the IC body to ensure stability and minimize output impedance at high frequency.
드롭인 대체품: NJM2835DL1-05-TE1 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: NJM2835DL1-05-TE1 (동일 폼 팩터 및 풋프린트) — 차이점: Output Voltage, Package, Regulator Type.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
NJM2835DL1-33-TE1
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
NJM2835DL1-18-TE1
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
NJM2835DL1-25-TE1
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
NJM2835DL1-08-TE1
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LP38690MP-5.0/NOPB
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LP38690MP-3.3/NOPB
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
NJM2835DL1-05-TE1 최대 정격 & 전기적 특성
| Regulator Type | Low Dropout (LDO), Positive Fixed |
| 출력 전압 | 5.0 V (fixed) |
| Output Current | 500 mA |
| 입력 전압 범위 | Up to 15.5 V |
| 드롭아웃 전압 | 0.18 V (typical) |
| 출력 노이즈 | 45 uVrms |
| Ripple Rejection (PSRR) | 75 dB |
| Output Capacitor | 2.2 uF ceramic minimum |
| Technology | Advanced Bipolar |
| 패키지 | TO-252-3 (DPAK) |
| 실장 유형 | Surface Mount |
| 핀 수 | 3 |
| 동작 온도 | -40C to +85C (industrial range, typical) |
| Internal Protection | Current limit, Thermal shutdown, Noise bypass capacitor |
| RoHS 상태 | Compliant |
NJM2835DL1-05-TE1 핀 구성
| 핀 1 | VIN — Input voltage supply |
| 핀 2 | GND — Ground reference |
| 핀 3 | VOUT — Regulated 5.0 V output |
일반적인 애플리케이션
NJM2835DL1-05-TE1 적합 용도: 7 애플리케이션s: Post-Regulation After DC-DC Switching Converter, Audio Codec Analog 5V Supply, USB-Powered Device 5V Rail, Industrial 12V/24V Point-of-Load Regulation, Sensor Bias Supply, Automotive 12V Subsystem Rail, Consumer Appliance 5V Logic Supply.
Post-Regulation After DC-DC Switching Converter
The NJM2835DL1-05-TE1 is used as a low-noise post-regulator when a switching DC-DC converter provides a pre-regulated rail (e.g., 12 V down to 5.5 V) that still contains switching ripple. With 75 dB PSRR at audio-band frequencies and 45 uVrms output noise, the NJM2835 attenuates the switching ripple by 75 dB (5625x) so the downstream analog circuit sees a clean rail. At 500 mA load and 12 V-to-5 V conversion, efficiency through the LDO is only 42 percent, but the noise floor reduction is essential for sensitive analog sections. A 2.2 uF ceramic output capacitor is sufficient for stability, simplifying the BOM versus tantalum-output LDOs. This part suits audio codecs, RF transceivers, and high-resolution ADC/DAC reference supplies that cannot tolerate switching ripple.
추천
Audio Codec Analog 5V Supply
Audio codecs such as S/PDIF transmitters, headphone amplifiers, and DAC analog sections require a clean 5 V supply to preserve dynamic range and signal-to-noise ratio. The NJM2835DL1-05-TE1 with 45 uVrms noise and 75 dB PSRR provides a quiet rail that does not inject hum or ripple into the audio path. The 500 mA output supports typical headphone-amp current draws plus analog section quiescent loads. With only a 2.2 uF ceramic output capacitor required, the regulator fits alongside codec ICs in space-constrained portable designs. The exposed thermal tab on the TO-252-3 package spreads heat into the audio board's ground pour without needing a dedicated heatsink.
추천
USB-Powered Device 5V Rail
USB-powered devices receive a 5 V nominal supply from the USB bus, but the actual voltage at the device connector can vary from 4.75 V to 5.25 V depending on cable drop and host load. The NJM2835DL1-05-TE1 with 0.18 V dropout and 5.0 V fixed output provides a clean post-regulation rail even when the input sags toward 5.18 V at full 500 mA. The 75 dB PSRR cleans up noise from the USB bus and from any upstream switching converters in a hub. The 2.2 uF ceramic output capacitor requirement keeps the design small for wearables, dongles, and portable peripherals where PCB real estate is at a premium.
추천
Industrial 12V/24V Point-of-Load Regulation
Industrial backplanes running at 12 V or 24 V often need a local 5 V rail for microcontroller and sensor subsystems. The NJM2835DL1-05-TE1 accepts up to 15.5 V input, allowing direct connection to a 12 V bus without an intermediate pre-regulator. At 12 V-to-5 V conversion at 500 mA, the part dissipates 3.5 W, which the TO-252-3 thermal tab spreads across the PCB copper pour. The 75 dB PSRR cleans up backplane switching noise that could otherwise couple into analog sensor front-ends. This part is well-suited for PLCs, factory sensor hubs, and HMI panels where a compact 5 V LDO simplifies the power tree.
추천
Sensor Bias Supply
Precision sensors such as MEMS accelerometers, gyroscopes, and gas sensors require low-noise bias supplies to preserve measurement accuracy. The NJM2835DL1-05-TE1 with 45 uVrms noise provides a clean 5 V rail that does not modulate the sensor output with supply ripple. The 75 dB PSRR rejects upstream switching noise from sensor hub power trees. The 500 mA output supports typical multi-sensor bias loads including analog front-end ADCs. The exposed pad TO-252-3 package allows the part to be co-located with sensor ICs in tight sensor modules.
추천
Automotive 12V Subsystem Rail
Automotive 12 V subsystems (within cold-crank and load-dump datasheet limits) often require local 5 V rails for infotainment, body controllers, and sensor ECUs. The NJM2835DL1-05-TE1 accepts up to 15.5 V input and provides a clean 5 V output with 75 dB PSRR, suitable for non-safety automotive subsystems. The 500 mA output supports typical 5 V microcontroller and CAN-transceiver loads. Note: this is the industrial-grade NJM2835; for AEC-Q100 qualified applications the NJM2835 family automotive variants should be selected instead. The TO-252-3 package is automotive-vibration tolerant with the exposed tab soldered to the PCB ground plane.
추천
Consumer Appliance 5V Logic Supply
Consumer appliances such as washing machines, microwave ovens, and HVAC controls run from rectified mains (12 V to 24 V rails) and need local 5 V supplies for microcontroller and display logic. The NJM2835DL1-05-TE1 with 15.5 V maximum input can connect directly to the 12 V or 15 V intermediate rail. At 500 mA continuous, the part supplies an MCU, display driver, and user-interface peripherals from a single TO-252-3 package. The 75 dB PSRR cleans mains-frequency ripple, and the 45 uVrms noise floor does not interfere with touch-sensing or display-driver signals.
추천
추천 제품 요약
엔지니어링 참조 데이터: NJM2835DL1-05-TE1 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | NJM2835DL1-33-TE1 | NJM2835DL1-18-TE1 | NJM2835DL1-25-TE1 | LP38690MP-5.0/NOPB | LP38690MP-3.3/NOPB |
|---|---|---|---|---|---|---|
| Package | TO-252-3 (DPAK) | TO-252-3 - same | TO-252-3 - same | TO-252-3 - same | TO-252-3 (MP) - same | TO-252-3 (MP) - same |
| Brand | Nisshinbo Micro Devices | Nisshinbo Micro Devices (same) | Nisshinbo Micro Devices (same) | Nisshinbo Micro Devices (same) | Texas Instruments (cross-brand) | Texas Instruments (cross-brand) |
| Output Voltage | 5.0 V | 3.3 V | 1.8 V | 2.5 V | 5.0 V | 3.3 V |
| Output Current | 500 mA | 500 mA | 500 mA | 500 mA | 1 A | 1 A |
| Dropout Voltage | 0.18 V | 0.18 V | 0.18 V | 0.18 V | 0.45 V | 0.45 V |
| Min Output Capacitor | 2.2 uF ceramic | 2.2 uF ceramic | 2.2 uF ceramic | 2.2 uF ceramic | 1 uF ceramic | 1 uF ceramic |
| Input Voltage Max | 15.5 V | 15.5 V | 15.5 V | 15.5 V | 10 V | 10 V |
주요 차별점
- 45 uVrms low noise with built-in bypass capacitor (vs LP38690MP-5.0/NOPB)
- 75 dB PSRR at audio-band frequencies (vs LP38690MP-5.0/NOPB)
- 0.18 V low dropout at 500 mA (vs LP38690MP-5.0/NOPB)
- Stable with only 2.2 uF ceramic output capacitor (vs AMS1117-5.0)
설계 노트
Estimated: At VIN=12 V, VOUT=5.0 V, IOUT=500 mA, the NJM2835DL1-05-TE1 dissipates approximately 3.5 W (input values: 12 V in, 5 V out at 0.5 A). The TO-252-3 package thermal pad should be soldered to a copper pour of at least 1 square inch to keep junction temperature within the 125 C limit. Without a thermal pad copper pour, the part will thermally limit or shut down under full load on a 12 V input.
Place the 2.2 uF ceramic output capacitor within 5 mm of the VOUT pin and connect the ground side directly to the GND pin. Keep the input capacitor (typically 1 uF to 10 uF) close to the VIN pin to minimize input-loop inductance. The TO-252-3 thermal tab is internally connected to ground on most LDO variants in this family - verify on the datasheet before using the tab as a heatsink connection to a non-ground plane.
Do not exceed the 15.5 V maximum input voltage - load-dump transients on automotive 12 V buses can exceed this limit, so an upstream TVS or load-dump suppressor is required for 12 V automotive use. Do not operate below the dropout voltage (VIN must stay above approximately 5.18 V at full load). The 2.2 uF output capacitor MUST be ceramic with low ESR - using a tantalum or electrolytic capacitor with high ESR can cause instability. Do not reverse the VIN and VOUT connections - the part does not include reverse-current protection.
규정 준수 정보
RoHS compliance per Nisshinbo product page. Not AEC-Q100 qualified - for automotive safety applications consult Nisshinbo for AEC-Q100 qualified variants of the NJM2835 family. Lead-free reflow profile per JEDEC J-STD-020.
