My Inquiry
My Account
onsemi NCP700BSN25T1G
- Part No.:
- NCP700BSN25T1G
- Manufacturer:
- onsemi
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCP700BSN25T1G.pdf
- Description:
- IC REG LINEAR 2.5V 200MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,402
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP700BSN25T1G from onsemi is a 200 mA ultra-low-noise, high-PSRR BiCMOS LDO regulator with fixed 2.5 V output, optimized for RF power amplifier biasing and noise-sensitive analog circuitry. It delivers ±2.5% output accuracy over −40 °C to +125 °C, 10 µVRMS output noise (with 100 nF BYP capacitor), 82 dB PSRR at 1 kHz, and 115 mV dropout at 200 mA load.
For engineers reviewing the NCP700BSN25T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its WDFN6 1.5 mm × 1.5 mm footprint, active discharge capability, enable-controlled shutdown (≤1 µA disable current), and stability with 1 µF ceramic output capacitors - critical for space-constrained portable RF designs.
Technical Context
The NCP700BSN25T1G employs a BiCMOS process to integrate bipolar elements for low-noise reference generation and CMOS circuitry for ultra-low ground current (70 µA no-load, 75 µA at 200 mA). Its architecture features an internal bandgap reference accessible via the BYP pin, enabling external 10–100 nF noise-reduction capacitors to suppress output voltage noise below 10 µVRMS.
It uses a PMOS pass transistor with inherent reverse-current protection and integrates thermal shutdown (150 °C trip, 135 °C reset), current limiting (310 mA typ), and active discharge (1 kΩ path) for fast turn-off. The EN pin has a 5 MΩ internal pull-down resistor and logic-level threshold (0.4 V low / 1.2 V high), supporting direct connection to VIN for always-on operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2.5% over −40 °C to +125 °C - ensures stable bias for RF PAs without external feedback components. |
| Max Output Current | 200 mA continuous - sufficient for single-stage RF power amplifiers in smartphones and IoT transceivers. |
| Dropout Voltage | 115 mV at 200 mA - enables operation from Li-ion battery (3.0 V min) while maintaining regulation down to 2.615 V input. |
| Output Noise | 10 µVRMS (10 Hz–100 kHz, with 100 nF BYP cap) - meets stringent SNR requirements of RF front-end receivers and ADC reference supplies. |
| PSRR | 82 dB at 1 kHz - rejects switching noise from adjacent DC-DC converters feeding the same battery rail. |
| Ground Current | 75 µA at 200 mA load - minimizes quiescent power loss in battery-powered devices with intermittent transmit duty cycles. |
| Enable Threshold | 0.4 V (max low), 1.2 V (min high) - compatible with standard GPIOs and allows clean sequencing in multi-rail systems. |
Pinout & Package
Package: WDFN6 (1.5 mm × 1.5 mm, 0.75 mm height, Case 511BJ), Pb-free, moisture-sensitive level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 2.5–5.5 V input; requires 1 µF ceramic decoupling to GND for stability and line transient immunity. |
| 2 (GND) | Power ground reference | Low-impedance return path for IN, OUT, BYP, and EN; must be connected to main PCB ground plane. |
| 3 (OUT) | Regulated output | Delivers 2.5 V ±2.5%; stable with ≥1 µF X5R/X7R ceramic capacitor; supports active discharge via internal 1 kΩ path when EN = low. |
| 4 (EN) | Enable control input | Logic-compatible ON/OFF control; internal 5 MΩ pull-down ensures safe default-off state if left floating. |
| 5 (NC) | No connect | Not bonded internally; must remain unconnected on PCB to avoid parasitic coupling or ESD risk. |
| 6 (BYP) | Noise reduction node | Direct access to internal bandgap reference; connect 10–100 nF capacitor to GND to reduce output noise by up to 33%. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low output noise | 10 µVRMS (10 Hz–100 kHz) with 100 nF BYP cap - enables clean biasing of GaAs/GaN RF PAs without added filtering. |
| High PSRR at RF frequencies | 82 dB at 1 kHz, >60 dB up to 100 kHz - suppresses ripple from buck converters powering baseband ICs. |
| Stable with minimal output capacitance | Works with 1 µF ceramic COUT - reduces BOM count and PCB area vs. traditional LDOs requiring ≥10 µF. |
| Active discharge circuit | 1 kΩ internal discharge path from OUT to GND when EN = low - ensures rapid VOUT decay (<1 ms for 10 µF load) for safe power sequencing. |
| Thermal and short-circuit protection | 150 °C shutdown with 135 °C hysteresis and 320 mA short-circuit limit - prevents damage during board-level fault conditions. |
Applications
| Cellular RF Power Amplifier Bias | Portable Audio Codec Supply |
|---|---|
Use Scenario: Providing clean, regulated 2.5 V bias to the collector/drain of a 200 mA GaAs RF power amplifier in a 4G/5G smartphone front-end module. IC Role / Device Role / Timing Role: Low-noise LDO delivering stable DC bias under dynamic RF load modulation (up to 200 mA pulsed current). Use Value: 10 µVRMS noise and 82 dB PSRR prevent AM-to-PM distortion and adjacent-channel leakage ratio (ACLR) degradation in LTE/5G transmission. | Use Scenario: Powering the analog section (ADC/DAC, PGA) of a portable Bluetooth audio codec in wireless earbuds. IC Role / Device Role / Timing Role: Precision analog supply LDO with tight load regulation (0.2 mV) and low ground current to extend battery life. Use Value: ±2.5% output accuracy and <1 µA disable current enable accurate signal conversion and deep-sleep mode with zero hold-up time. |
| Medical Sensor Signal Chain Reference | Industrial IoT Wireless Transceiver Core Supply |
Use Scenario: Supplying the reference voltage node for a low-power biomedical sensor ASIC measuring ECG or EEG signals. IC Role / Device Role / Timing Role: Ultra-low-noise 2.5 V reference source with BYP-pin tunability to meet sub-µV noise floor requirements. Use Value: 10 nF–100 nF BYP capacitor selection allows trade-off between noise (down to 10 µVRMS) and turn-on time (400 µs–4.4 ms), matching clinical-grade acquisition timing. | Use Scenario: Regulating core voltage (2.5 V) for an ARM Cortex-M4-based LoRaWAN transceiver operating in battery-powered remote monitoring nodes. IC Role / Device Role / Timing Role: Enable-controlled LDO supporting low-power sleep/wake cycles with <1 µA shutdown current. Use Value: Active discharge ensures rapid VOUT collapse during MCU-initiated shutdown, preventing back-powering of peripherals and meeting IEC 62368-1 isolation requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B251MR-G | 200 mA, 2.5 V fixed, 25 µVRMS noise (no BYP pin), 65 dB PSRR @ 1 kHz, SOT-25 package | Lacks BYP pin for noise tuning; higher noise limits use in RF PA biasing | Select when ultra-low noise is not required and SOT-25 footprint is preferred over WDFN6. |
| ROHM BD3508HFP-CE2 | 500 mA, 2.5 V fixed, 45 µVRMS noise, 70 dB PSRR @ 1 kHz, HTSOP-J8 package | Higher current but significantly higher noise; larger 4.9 mm × 6.0 mm package increases PCB area | Choose only if >200 mA load current is needed and 4.5× larger footprint is acceptable. |
Compared with XC6219B251MR-G and BD3508HFP-CE2, the NCP700BSN25T1G uniquely combines 10 µVRMS noise (via BYP), 82 dB PSRR, and WDFN6 size - making it the only option qualified for RF PA biasing in space-constrained mobile designs where noise performance is non-negotiable.
Availability
NCP700BSN25T1G is available at Aetrix Electronics and suitable for cellular RF front-end modules, portable medical sensors, industrial IoT wireless transceivers, and battery-powered audio codecs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for NCP700BSN25T1G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and edge applications.
The NCP700B series is designed specifically for noise-sensitive RF and analog power domains, emphasizing ultra-low noise, high PSRR, and compact packaging to meet the demands of next-generation portable wireless devices.
FAQ
What is the maximum input voltage rating for the NCP700BSN25T1G?
The NCP700BSN25T1G has an absolute maximum input voltage rating of 6 V. Operation above this voltage risks permanent damage. For reliable continuous operation, the recommended input range is 2.5 V to 5.5 V - ensuring proper regulation across Li-ion battery discharge (4.2 V → 2.8 V) while maintaining ≥115 mV headroom for 200 mA loads.
Does the NCP700BSN25T1G require an external BYP capacitor to function?
No, the NCP700BSN25T1G operates without an external BYP capacitor. However, connecting a 10–100 nF capacitor from BYP to GND is required to achieve the ultra-low 10 µVRMS noise specification. Without it, typical output noise rises to 15 µVRMS (at 2.5 V output), degrading performance in RF and precision analog applications.
Can the NCP700BSN25T1G be used without connecting the EN pin?
Yes - the NCP700BSN25T1G includes a 5 MΩ internal pull-down resistor on the EN pin. Leaving EN unconnected defaults the device to enabled (ON) state. For guaranteed always-on operation, tie EN directly to IN. Do not leave EN floating in noisy environments, as EMI could cause unintended toggling.
What is the thermal shutdown behavior of the NCP700BSN25T1G?
The NCP700BSN25T1G activates thermal shutdown at 150 °C (typical junction temperature) and resets at 135 °C (typical), providing 15 °C hysteresis. During shutdown, the output is disabled and ground current drops to ≤1 µA. This protects against catastrophic failure but is not a substitute for proper thermal design - the WDFN6 package requires adequate copper pour for heatsinking at sustained 200 mA loads.
Is the NCP700BSN25T1G stable with ceramic output capacitors smaller than 1 µF?
No - the NCP700BSN25T1G is specified and characterized for stability with ≥1 µF ceramic output capacitors (X5R/X7R dielectric). Using capacitors below this value risks oscillation or degraded transient response. The datasheet explicitly states "stable with ceramic output capacitors as low as 1 µF", confirming 1 µF as the minimum validated value.
NCP700BSN25T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.23V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 110 µA
- Current - Supply (Max):
- 130 µA
- PSRR:
- 82dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
NCP700BSN25T1G FAQ
1.How can I place an order for NCP700BSN25T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP700BSN25T1G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for NCP700BSN25T1G reliable?
The price and inventory of NCP700BSN25T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP700BSN25T1G is usually 5 days.
3.What payment methods are accepted for NCP700BSN25T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP700BSN25T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP700BSN25T1G?
NCP700BSN25T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP700BSN25T1G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for NCP700BSN25T1G?
For technical support, including NCP700BSN25T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP700BSN25T1G requirements.
6.How does Aetrix verify that NCP700BSN25T1G is sourced from the original manufacturer or authorized distributors?
All NCP700BSN25T1G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NCP700BSN25T1G meets industry standards.
7.What is the process for return or replacement of NCP700BSN25T1G?
All NCP700BSN25T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP700BSN25T1G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The NCP700BSN25T1G part is unused and in its original packaging.
Return procedure for NCP700BSN25T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP700BSN25T1G Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
