TPS63710 - 1A Low Noise Inverting Buck Converter | TI
부품 번호: TPS63710DRRR ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.6 | $2.60 |
| 10 | $2.34 | $23.40 |
| 100 | $2.05 | $205.00 |
| 500 | $1.78 | $890.00 |
| 1,000 | $1.51 | $1,510.00 |
TPS63710DRRR 개요
An inverting buck converter is a type of DC-DC switching regulator that produces a negative output rail from a positive supply. It belongs to the broader family of switching voltage regulators within power management ICs, which convert and regulate voltages efficiently using inductive energy storage rather than the dissipative approach of linear regulators. This makes inverting buck converters well suited to battery-powered and higher-current negative-rail applications where charge pumps cannot supply enough current.
Key features of the TPS63710 include a filtered reference system with an external capacitor on the CAP pin that suppresses low-frequency 1/f noise up to approximately 100 kHz, a performance level required in high-performance telecommunication systems. The fixed-frequency PWM control topology gives predictable switching behavior and simple EMI filtering. Synchronous rectification eliminates the external Schottky diode, improving efficiency and reducing bill-of-material count. An enable pin supports power sequencing, and integrated soft-start limits inrush current.
The device targets applications requiring a clean negative rail, such as op-amp supply rails, data converters, RF transceivers, bias supplies for GaN amplifiers, and optical modules. Its low-noise reference system makes it suitable for powering sensitive analog circuitry where output ripple and noise degrade signal integrity, while the wide input range supports both 5 V and 12 V system rails.
When designing with the TPS63710, select input and output capacitors and an inductor with adequate saturation current to maintain stability and handle peak currents, and solder the exposed thermal pad to a copper area for heat dissipation. As of 2026-08-29, single-unit pricing from distributors starts near $1.51 (LCSC), with stock available at DigiKey, Mouser, and LCSC.
드롭인 대체품: TPS63710DRRR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
TPS63710DRRR
✅ 드롭인✓ 재고 있음
$1.51 / 개
데이터시트 보기 →TPS63710DRRT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TPS63700
⚡ 동일 패키지 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
LT3580
⚡ 동일 패키지 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TPS63710DRVR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TPS63710DRRR 최대 정격 & 전기적 특성
| 토폴로지 | Synchronous inverting buck converter |
| 출력 유형 | Negative, adjustable |
| 출력 전압 범위 | Down to -5.5 V |
| 최대 출력 전류 | 1 A (depends on VIN-to-VOUT ratio) |
| 입력 전압 범위 | 3.1 V to 14 V |
| Control Topology | Fixed-frequency PWM |
| Noise Performance | Low 1/f noise via filtered reference (CAP pin filter to ~100 kHz) |
| 동기 정류 | Yes (no external Schottky diode) |
| 인에이블 핀 | Yes |
| 소프트 스타트 | Yes (integrated) |
| 패키지 | 12-WFDFN exposed pad (WSON), 3 mm x 3 mm |
| 실장 유형 | Surface Mount |
TPS63710DRRR 12-wfdfn exposed pad (wson), 3 mm x 3 mm 핀 구성 가이드
TPS63710DRRR(12-wfdfn exposed pad (wson), 3 mm x 3 mm 패키지)의 핀 구성입니다. 이 전력 소자는 게이트, 드레인, 소스 단자를 갖추고 있습니다. 비편향 패키지의 경우 정확한 핀 1 방향과 풋프린트 세부 정보는 제조사 데이터시트를 참조하십시오. 일반적인 응용 분야로는 전원 공급 장치 설계, 모터 구동, 부하 스위칭이 있습니다.
다음에 대한 상세 핀아웃 데이터 없음: TPS63710DRRR.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
TPS63710DRRR 적합 용도: 6 애플리케이션s: Op-Amp Negative Rail Generation, High-Performance Telecommunication Systems, GaN/RF Amplifier Bias Supplies, Data Converter (ADC/DAC) Negative Supply, Optical Modules, Audio Signal Chain Negative Rail.
Op-Amp Negative Rail Generation
The TPS63710 is well suited to generating the negative supply rail for precision op-amps and instrumentation front ends. Its filtered reference system suppresses 1/f noise up to approximately 100 kHz, so the negative rail does not inject low-frequency noise into high-gain analog stages. Operating from a 3.1 V to 14 V input, it can derive a -5 V rail directly from a 5 V or 12 V system supply with up to 1 A available depending on the voltage ratio. Fixed-frequency PWM keeps switching artifacts at a predictable frequency that is simple to filter, and synchronous rectification improves efficiency versus diode-based inverters.
추천
High-Performance Telecommunication Systems
Telecommunication line cards and RF modules frequently require a clean negative bias rail for amplifiers, modulator drivers, and data converters. The TPS63710 addresses this with its low 1/f noise filtered reference, which TI identifies as a requirement for high-performance telecommunication systems. The 14 V maximum input supports standard -48 V-derived intermediate rails after conditioning, while the -5.5 V output capability covers common analog bias levels. The fixed-frequency PWM topology simplifies EMI filter design around a single known switching frequency, and the enable pin permits controlled power sequencing in multi-rail telecom boards.
추천
GaN/RF Amplifier Bias Supplies
GaN RF transistors and RF power amplifiers require stable negative gate bias rails with low noise to prevent unwanted drain current drift and intermodulation. The TPS63710 provides an adjustable negative output down to -5.5 V with low 1/f noise from its CAP-pin filtered reference, helping keep gate bias quiet. Delivering up to 1 A depending on the input-to-output ratio, it covers gate bias plus small-signal rail needs from a single positive supply such as 5 V or 12 V. Integrated soft-start limits inrush so the amplifier powers up safely with drain bias sequencing.
추천
Data Converter (ADC/DAC) Negative Supply
High-performance data converters and their analog front ends often require a negative rail that adds minimal noise to the signal chain. The TPS63710's low 1/f noise reference and predictable fixed-frequency PWM ripple allow designers to plan LC filtering with confidence, protecting ADC/DAC dynamic range. Its 1 A capability supports converter cores plus driver amplifiers, and the 3.1 V to 14 V input range permits powering from the same primary rail as the positive regulator, simplifying power tree design. The compact 3 mm x 3 mm WSON fits on dense mixed-signal boards.
추천
Optical Modules
Optical transceiver modules need compact negative rails for laser bias and driver circuits where noise directly affects bit error rate. The TPS63710's small 3 mm x 3 mm WSON package fits module form factors, and its low 1/f noise reference helps keep laser bias quiet. Operating down to 3.1 V input, it runs from the module's 3.3 V supply, generating roughly -2 V to -5 V bias rails with load-appropriate current. Fixed-frequency PWM makes the switching spur easy to place away from sensitive receive bandwidths, and synchronous rectification minimizes power loss in thermally constrained modules.
추천
Audio Signal Chain Negative Rail
Audio amplifiers and line drivers require negative rails with minimal low-frequency noise to preserve signal-to-noise ratio and avoid audible artifacts. The TPS63710's filtered reference suppresses 1/f noise up to about 100 kHz, overlapping the baseband audio region, making it a strong fit for headphone amplifiers, balanced line drivers, and A/V codecs needing a symmetric supply. With up to 1 A output, it can supply amplifier stages directly; the fixed PWM frequency allows post-regulation or LC filtering without interaction with the audio band. The enable pin supports mute/sleep sequencing in battery-powered audio products.
추천
추천 제품 요약
엔지니어링 참조 데이터: TPS63710DRRR — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | TPS60400 | LM27761 | LM2766 |
|---|---|---|---|---|
| Package | 12-WFDFN (WSON) exposed pad, 3 mm x 3 mm | SOT-23-5 (not pin-compatible) | WSON-8 (not pin-compatible) | SOIC-8 (not pin-compatible) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Topology | Synchronous inverting buck (inductive) | Unregulated charge-pump inverter | Charge pump inverter + LDO | Switched-capacitor voltage inverter |
| Output Voltage | Adjustable, down to -5.5 V | Unregulated, approx. -VIN | Adjustable negative via LDO (-1.5 V to -5.5 V class) | Unregulated, approx. -VIN |
| Output Current | Up to 1 A (ratio dependent) | ~60 mA class | ~200 mA class (charge pump, up to 250 mA) | Up to 200 mA |
| Input Voltage Range | 3.1 V to 14 V | 1.6 V to 5.5 V | 2.7 V to 5.5 V | 1.5 V to 5.5 V |
| Noise Feature | Low 1/f noise filtered reference (CAP pin) | None (unregulated) | LDO post-regulation reduces ripple | None |
| Drop-in Replacement | N/A (reference part) | No - different package and topology | No - different package and topology | No - different package and topology |
주요 차별점
- True inductive inverting buck, not a charge pump (vs LM2766)
- Low 1/f noise filtered reference (vs TPS60400)
- Synchronous rectification (vs LM27761)
설계 노트
Solder the exposed thermal pad of the 12-WFDFN package to a grounded copper pour on the PCB; this pad is both the primary heat-removal path and the ground connection. Keep the input capacitor, output capacitor, and power inductor close to the IC to minimize hot-loop area. Per the TI datasheet layout section, separate the quiet AGND/reference routing from the power ground path to preserve the low-noise performance of the filtered reference.
The 1 A output current rating is conditional on the input-to-output voltage ratio; at larger |VOUT| relative to VIN, the available load current falls due to peak switch-current limits. Size the inductor for the peak (inductor ripple plus load) current, not the DC load current, and verify saturation current with margin. Do not omit the CAP-pin filter capacitor - it is essential to the low 1/f noise feature that differentiates this part from ordinary inverters.
Inverting converters operate with the IC ground referenced to the negative output, so verify effective input and output voltage stresses on the capacitors and the IC in your configuration. Estimate junction temperature from total losses (conduction plus switching) using the WSON package thermal resistance with the PCB copper area accounted for; TI's datasheet thermal information section provides theta-JA values for standard JEDEC boards.
규정 준수 정보
Compliance status not present in provided verified data; check the TI product page for RoHS/REACH certificates.
