My Inquiry
My Account
onsemi NCP170BMX170TCG
- Part No.:
- NCP170BMX170TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP170BMX170TCG.pdf
- Description:
- IC REG LINEAR 1.7V 150MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,768
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP170BMX170TCG from onsemi is a CMOS low-dropout linear regulator designed for ultra-low-power portable battery applications. It delivers 150 mA output current with 1.7 V fixed output voltage, 170 mV typical dropout at full load, ±1% output accuracy, and ultra-low 500 nA quiescent current-enabling multi-year operation in coin-cell–powered IoT sensors and wearables.
For engineers reviewing the NCP170BMX170TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its 1.7 V fixed output, XDFN4 1 × 1 mm package, enable-controlled operation, ceramic-capacitor stability, and thermal/overcurrent protection-critical for space-constrained, long-life embedded systems.
Technical Context
The NCP170BMX170TCG implements a PMOS pass transistor architecture enabling ultra-low IQ and fast transient response via dynamic boost circuitry. Its internal reference and error amplifier maintain regulation across −40°C to +85°C ambient, with line regulation of 0.05%/V and load regulation of ±20 mV from 0–150 mA.
It features active-high enable (EN) with 1.2 V threshold, integrated thermal shutdown (175°C) with 25°C hysteresis, and short-circuit current limiting (225 mA typical). The device is stable with 1 µF ceramic input/output capacitors and requires no external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.7 V ±1% over −40°C to +85°C - ensures precise biasing for 1.8 V I/O logic rails operating near minimum supply. |
| Max Output Current | 150 mA - supports moderate-current peripherals like BLE radios, low-power MCUs, and image sensor interfaces. |
| Dropout Voltage | 170 mV typical at 150 mA - enables regulation down to VIN = 1.87 V, extending usable battery life in single-cell Li-ion or alkaline systems. |
| Quiescent Current | 500 nA typical - reduces standby power loss to <1 µW at 1.7 V, critical for >10-year battery life in always-on sensing nodes. |
| PSRR | 57 dB at 1 kHz (150 mA load) - suppresses switching noise from adjacent DC-DC converters in mixed-signal subsystems. |
| Thermal Shutdown | 175°C activation with 25°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
| Package | XDFN4, 1.0 × 1.0 × 0.4 mm - enables high-density layout in compact wearables and medical patches. |
Pinout & Package
XDFN4 package (Case 711AJ), 1.0 mm × 1.0 mm, 0.4 mm height, exposed pad internally connected to GND for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Power Supply | Accepts 2.2–5.5 V input; connects to bulk capacitor and upstream power source (e.g., battery or DC-DC output). |
| 2 (GND) | Ground Reference | Primary return path for load current and internal circuitry; must be tied to low-impedance system ground plane. |
| 3 (EN) | Enable Control Input | Active-high logic input; drives regulator ON when ≥1.2 V; pulls to GND for full shutdown (ISTB = 100 nA). |
| 4 (OUT) | Regulated Output | Delivers stable 1.7 V to load; requires 1 µF ceramic capacitor placed ≤2 mm from pin per layout guidelines. |
| EPAD | Exposed Thermal Pad | Internally connected to GND; must be soldered to PCB thermal pad for RJA = 250°C/W and reliable thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 500 nA typical - extends shelf life and operational lifetime in energy-harvesting and battery-only edge nodes. |
| Ceramic capacitor stability | Stable with 1 µF CIN/COUT - eliminates need for larger, less reliable tantalum or aluminum electrolytics. |
| Dynamic transient boost | Enhanced load-step response - minimizes output droop during RF transmit bursts in Bluetooth LE modules. |
| Over-current protection | 225 mA short-circuit limit - prevents catastrophic failure during output fault conditions without external current sense. |
| Pb-free, RoHS-compliant | Halogen-free/BFR-free construction - meets global environmental compliance requirements for consumer and medical devices. |
Applications
| Wireless Sensor Node | Wearable Health Monitor |
|---|---|
Use Scenario: Sub-µA sleep-mode BLE beacon transmitting temperature/humidity every 5 minutes from CR2032 battery. IC Role / Device Role / Timing Role: Primary 1.7 V LDO supplying MCU core, radio transceiver, and analog front-end. Use Value: 500 nA IQ enables >12-year battery life; 170 mV dropout allows operation until battery reaches 1.87 V. |
Use Scenario: Continuous ECG patch powered by thin-film lithium battery with 3-year target service life. IC Role / Device Role / Timing Role: Precision 1.7 V supply for low-noise analog signal chain and ultra-low-power microcontroller. Use Value: ±1% output accuracy ensures consistent ADC reference; 85 µVrms noise avoids signal degradation in biopotential measurement. |
| Industrial Asset Tracker | Smart Home Motion Sensor |
Use Scenario: GPS+LTE-M tracker mounted on shipping container, waking hourly to log location and transmit via cellular modem. IC Role / Device Role / Timing Role: Main power rail for MCU, GNSS receiver, and cellular baseband IC during active transmission bursts. Use Value: Dynamic transient boost maintains VOUT within spec during 150 mA LTE transmit peaks; thermal shutdown protects against enclosure overheating. |
Use Scenario: PIR-based occupancy sensor using coin cell, reporting motion events wirelessly to hub only when triggered. IC Role / Device Role / Timing Role: Always-on 1.7 V supply for PIR signal conditioner, wake-up comparator, and low-power MCU in deep-sleep mode. Use Value: Standby current of 100 nA (VEN = 0 V) ensures negligible drain during 99.9% idle time; EN pin enables synchronized wake-up control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B172MR-G | 1.7 V fixed output, 200 mA rating, 250 nA IQ, SOT-25 package (2.9 × 2.8 mm) | Larger footprint; lacks EN pin and thermal shutdown; lower PSRR (45 dB @ 1 kHz) | Choose for cost-sensitive, non-critical applications where board space and protection features are secondary. |
| Ricoh RP114K171D-TR-F | 1.7 V fixed output, 150 mA rating, 250 nA IQ, DFN1006-4 package (1.0 × 0.6 mm) | Smaller footprint but no EN pin; no thermal shutdown; higher dropout (220 mV @ 150 mA) | Choose when minimal size is paramount and enable control or thermal safety are handled externally. |
Compared with XC6210B172MR-G and RP114K171D-TR-F, the NCP170BMX170TCG uniquely combines EN control, thermal shutdown, 170 mV dropout, and 500 nA IQ in a 1.0 × 1.0 mm XDFN4 package-making it optimal for protected, space-constrained, long-life battery systems requiring active power management.
Availability
NCP170BMX170TCG is available at Aetrix Electronics and suitable for wireless sensor nodes, wearable health monitors, industrial asset trackers, and smart home motion sensors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP170BMX170TCG 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, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP170 series is part of onsemi's ultra-low-IQ LDO portfolio, engineered specifically for battery-powered portable equipment where extended runtime and minimal standby power are primary design constraints.
FAQ
What is the output voltage tolerance of the NCP170BMX170TCG over temperature?
The NCP170BMX170TCG provides ±1% output voltage accuracy across the full operating junction temperature range of −40°C to +85°C. At +25°C, the typical output is 1.7 V with min/max bounds of 1.683 V and 1.717 V, ensuring reliable operation for 1.8 V logic interfaces even under thermal stress.
Does the NCP170BMX170TCG require an external pull-up resistor on the EN pin?
No, the NCP170BMX170TCG does not require an external pull-up on the EN pin. Its EN input draws only 10 nA typical current and has a guaranteed high-threshold of 1.2 V and low-threshold of 0.4 V, allowing direct connection to GPIOs or open-drain logic without additional components.
Can the NCP170BMX170TCG operate with a 1.8 V input supply?
Yes-the NCP170BMX170TCG supports input voltages as low as 2.2 V per datasheet specifications. With a 170 mV typical dropout at 150 mA, it requires at least 1.87 V input to sustain 1.7 V output at full load. Operation below 2.2 V is not characterized or guaranteed.
Is the NCP170BMX170TCG compatible with 1 µF ceramic capacitors on both input and output?
Yes, the NCP170BMX170TCG is explicitly characterized and guaranteed stable with 1.0 µF X5R/X7R ceramic capacitors on both IN and OUT pins. This eliminates the need for larger, less reliable capacitor types and simplifies layout in space-constrained designs.
What protection features are integrated into the NCP170BMX170TCG?
The NCP170BMX170TCG integrates over-current protection (225 mA short-circuit limit), thermal shutdown (175°C activation with 25°C hysteresis), and ESD robustness (2 kV HBM). These features operate autonomously without external circuitry, enhancing system reliability in unattended deployments.
NCP170BMX170TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- 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):
- 1.7V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 900 nA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-XDFN (1x1)
NCP170BMX170TCG FAQ
1.How can I place an order for NCP170BMX170TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP170BMX170TCG 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 NCP170BMX170TCG reliable?
The price and inventory of NCP170BMX170TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP170BMX170TCG is usually 5 days.
3.What payment methods are accepted for NCP170BMX170TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP170BMX170TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP170BMX170TCG?
NCP170BMX170TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP170BMX170TCG 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 NCP170BMX170TCG?
For technical support, including NCP170BMX170TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP170BMX170TCG requirements.
6.How does Aetrix verify that NCP170BMX170TCG is sourced from the original manufacturer or authorized distributors?
All NCP170BMX170TCG 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 NCP170BMX170TCG meets industry standards.
7.What is the process for return or replacement of NCP170BMX170TCG?
All NCP170BMX170TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP170BMX170TCG, 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 NCP170BMX170TCG part is unused and in its original packaging.
Return procedure for NCP170BMX170TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP170BMX170TCG 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…
