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onsemi NCP1510AFCT1G
- Part No.:
- NCP1510AFCT1G
- Manufacturer:
- onsemi
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- -
- Datasheet:
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NCP1510AFCT1G.pdf
- Description:
- IC REG LINEAR SWITCHING REG
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Product details
Overview
NCP1510AFCT1G from onsemi is a synchronous step-down DC-DC converter optimized for portable battery-powered systems, delivering up to 500 mA output current from 2.5–5.2 V input, with digitally selectable output voltages (1.05/1.35/1.57/1.8 V), 92.5% peak efficiency at 1.8 V/300 mA, and operation down to −30°C. It serves as the core power supply for baseband processors in compact handheld devices.
For engineers reviewing the NCP1510AFCT1G datasheet, pinout, applications, or equivalent options, key selection criteria include its micro bump chip-scale package (9-pin, 1.55 mm × 1.55 mm), pulsed-mode quiescent current (14 µA), SYNC-controlled mode switching (PWM vs. pulsed), and integrated soft-start with thermal shutdown.
Technical Context
The NCP1510AFCT1G employs current-mode PWM control with internal oscillator (700–1200 kHz) or external synchronization (500–1000 kHz), enabling precise regulation across load transients. Its dual-mode architecture switches automatically between fixed-frequency PWM (for heavy loads ≥30 mA) and pulse-frequency modulated pulsed mode (for light loads), minimizing quiescent power without external mode-control circuitry.
It integrates synchronous NFET/PFET power stages (RDS(on) = 0.23 Ω typ), cycle-by-cycle current limiting (800 mA PWM / 200 mA pulsed), overvoltage protection (5% threshold), and digital output voltage selection via CB0/CB1 logic inputs-eliminating external feedback resistors and supporting dynamic voltage scaling in baseband processors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 500 mA at VIN = 3.6 V - supports full-power operation of cellular baseband ICs and DSPs. |
| Input Voltage Range | 2.5 V to 5.2 V - compatible with single-cell Li-ion (2.7–4.2 V) and triple-cell alkaline/NiMH (3.6–4.5 V) sources. |
| Output Voltage Options | 1.05 V / 1.35 V / 1.57 V / 1.8 V - digitally selected via CB0/CB1 pins; enables software-controlled DVFS in mobile SoCs. |
| Peak Efficiency | 92.5% at 1.8 V/300 mA - achieved via synchronous rectification and low-RDS(on) integrated FETs, reducing heat and external component count. |
| Quiescent Current | 14 µA in pulsed mode - extends battery runtime during standby/sleep states in always-on portable subsystems. |
| Operating Temperature | −30°C to +85°C ambient - validated for use in consumer handhelds exposed to wide environmental conditions. |
| Shutdown Current | 0.1 µA typical - ensures near-zero leakage when disabled, critical for long-term storage or deep-sleep modes. |
Pinout & Package
Package: 9-pin micro bump chip-scale package (CSP), case 499AC, 1.55 mm × 1.55 mm footprint, Pb-free, MSL Level 1 - enables ultra-compact PCB layouts in space-constrained mobile designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1: GNDP | Power Ground | Return path for high-current PFET/NFET switching stage; must be connected to low-impedance ground plane under IC. |
| A2: LX | Analog Output | Switch node connecting internal PFET/NFET to external inductor; carries high di/dt switching current and requires short, wide trace routing. |
| A3: VCC | Analog Input | Main power supply input (2.5–5.2 V); powers internal analog circuits and gate drivers; requires local 10 µF ceramic bypass capacitor. |
| B1: SYNC | Analog Input | Mode control and synchronization input: low = pulsed mode, high/internal clock = PWM mode, external 500–1000 kHz square wave = synchronized PWM. |
| B2: GNDA | Analog Ground | Reference ground for FB, CB0, CB1, SHD, and SYNC; must be star-connected to GNDP at single point to avoid noise coupling. |
| B3: FB | Analog Input | Feedback input monitoring output voltage; internally compared to bandgap reference; no external resistor divider required. |
| C1: SHD | Analog Input | Active-high enable pin; internal pull-down ensures safe default-off state; <0.4 V disables regulator, >1.2 V enables with soft-start. |
| C2: CB1 | Analog Input | Digital output voltage select bit (MSB); internal pull-up; logic level determines one of four preset VOUT values per truth table. |
| C3: CB0 | Analog Input | Digital output voltage select bit (LSB); internal pull-down; combined with CB1, sets VOUT without external programming components. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diode, reduces conduction loss, and improves light-load efficiency by >15% versus asynchronous designs. |
| Dual operating modes | Automatic transition between PWM (heavy load) and pulsed mode (light load <30 mA) via SYNC pin control-no external logic needed. |
| Digital output voltage selection | Four factory-trimmed output levels (1.05/1.35/1.57/1.8 V) set by CB0/CB1 logic states-enables dynamic voltage/frequency scaling in mobile processors. |
| Integrated soft-start | Gradually ramps reference voltage at power-up or enable, limiting inrush current into output capacitors and preventing input rail droop. |
| Comprehensive protection | Cycle-by-cycle current limit (800 mA), thermal shutdown (160°C trip, 135°C restart), overvoltage protection (5% threshold), and shutdown current <0.5 µA. |
Applications
| Cellular Baseband Power | Digital Camera Core Supply |
|---|---|
Use Scenario: Powers ARM-based baseband processor in GSM/UMTS smartphones during active call and data transmission. IC Role / Device Role / Timing Role: Primary buck regulator delivering dynamically scaled core voltage (1.05–1.8 V) under software control via CB0/CB1. Use Value: Extends talk time by 18% vs. linear regulators and enables fast voltage transitions (<200 µs) between performance and low-power states. |
Use Scenario: Supplies image signal processor (ISP) and CMOS sensor interface in compact digital still cameras. IC Role / Device Role / Timing Role: High-efficiency step-down converter operating from 3.6 V alkaline battery stack to regulated 1.57 V ISP core rail. Use Value: Maintains >90% efficiency across 10–300 mA load range, minimizing thermal rise in sealed camera housing and preserving battery life per shot. |
| MP3 Player Audio Codec | DSL Modem PHY Interface |
Use Scenario: Provides clean, low-noise 1.35 V supply to stereo audio codec in portable MP3 players. IC Role / Device Role / Timing Role: Low-quiescent-current buck converter in pulsed mode during music playback pause, switching to PWM during decode bursts. Use Value: Achieves 14 µA pulsed-mode IQ, enabling >100-hour standby on single AAA battery while maintaining <22 mV output ripple at 100 µA load. |
Use Scenario: Generates stable 1.8 V rail for DSL line driver PHY in home broadband modems powered from 5 V wall adapter. IC Role / Device Role / Timing Role: Synchronized buck converter locked to system clock (600 kHz) to minimize beat frequencies with upstream Ethernet timing. Use Value: Reduces conducted EMI by 12 dB through deterministic switching edge alignment, easing EMC certification for Class B residential equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | 3 MHz fixed-frequency PWM only; no pulsed mode; 300 mA max output; 1.8–6.5 V input range. | Better suited for higher-frequency, smaller-inductor designs where light-load efficiency is secondary to size. | Select if board space is constrained and system operates predominantly above 50 mA; avoid if sub-30 mA standby efficiency is critical. |
| RT8059ZSP | 2.5–5.5 V input; 600 mA output; supports forced PWM only; no digital voltage selection; external feedback resistors required. | Offers higher current capability but lacks integrated VOUT programming-requires additional GPIO and resistor network for DVFS. | Choose when higher output current (>500 mA) is mandatory and software-controlled voltage scaling is implemented externally. |
Compared with TPS62231DRYR and RT8059ZSP, the NCP1510AFCT1G uniquely combines digital output voltage selection, dual-mode efficiency optimization (14 µA pulsed IQ), and micro bump CSP packaging-making it optimal for battery-critical, space-limited portable baseband applications requiring zero external feedback components.
Availability
NCP1510AFCT1G is available at Aetrix Electronics and suitable for cellular phone power management, digital camera core supplies, and portable audio system regulation requiring stable component supply, long-term lifecycle support, and Pb-free compliance.
Supply support for NCP1510AFCT1G 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 (formerly ON Semiconductor) is a global semiconductor manufacturer specializing in energy-efficient power management, analog, sensors, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NCP1510AFCT1G belongs to onsemi's high-efficiency portable DC-DC converter product line, designed specifically for ultra-low-power, space-constrained battery-operated devices requiring dynamic voltage scaling and minimal external components.
FAQ
What input voltage range does the NCP1510AFCT1G support?
The NCP1510AFCT1G supports an input voltage range of 2.5 V to 5.2 V, making it compatible with single-cell Li-ion batteries (2.7–4.2 V) and triple-cell alkaline/NiMH sources (3.6–4.5 V). The maximum recommended input is 5.0 V when using external synchronization, per datasheet Note 3. Operation outside this range may damage the device or degrade regulation accuracy.
How is the output voltage selected on the NCP1510AFCT1G?
The NCP1510AFCT1G provides four factory-trimmed output voltages-1.05 V, 1.35 V, 1.57 V, and 1.8 V-selected digitally via the logic states of CB0 and CB1 pins. CB0 has an internal pull-down resistor and CB1 an internal pull-up, so floating pins default to 1.35 V. No external resistors are required, enabling software-controlled DVFS in mobile processors.
What is the difference between PWM mode and pulsed mode on the NCP1510AFCT1G?
PWM mode delivers fixed-frequency (700–1200 kHz internal or 500–1000 kHz synchronized) regulation for loads ≥30 mA, optimizing heavy-load efficiency. Pulsed mode uses frequency modulation below 30 mA, reducing quiescent current to 14 µA and extending battery life in standby. Mode is selected solely by the SYNC pin voltage level-no external circuitry needed.
Does the NCP1510AFCT1G require external compensation components?
No, the NCP1510AFCT1G features fully integrated loop compensation. All compensation networks are embedded within the IC, eliminating the need for external capacitors or resistors on the COMP or FB pins. This simplifies design, reduces BOM count, and ensures consistent stability across all four output voltage configurations and input conditions.
What protection features are built into the NCP1510AFCT1G?
The NCP1510AFCT1G includes cycle-by-cycle current limiting (800 mA in PWM, 200 mA in pulsed mode), thermal shutdown (160°C trip, 135°C restart), overvoltage protection (5% threshold), and soft-start. It also features 0.1 µA shutdown current and ESD robustness (>2500 V HBM), ensuring reliable operation in portable environments subject to transient stress and thermal variation.
NCP1510AFCT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
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- Packaging:
- Bulk
- Product Status:
- Active
- Function:
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- Topology:
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- Output Type:
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- Voltage - Input (Min):
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- Voltage - Input (Max):
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- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
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- Synchronous Rectifier:
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NCP1510AFCT1G FAQ
1.How can I place an order for NCP1510AFCT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP1510AFCT1G 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 NCP1510AFCT1G reliable?
The price and inventory of NCP1510AFCT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP1510AFCT1G is usually 5 days.
3.What payment methods are accepted for NCP1510AFCT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP1510AFCT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP1510AFCT1G?
NCP1510AFCT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP1510AFCT1G 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 NCP1510AFCT1G?
For technical support, including NCP1510AFCT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP1510AFCT1G requirements.
6.How does Aetrix verify that NCP1510AFCT1G is sourced from the original manufacturer or authorized distributors?
All NCP1510AFCT1G 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 NCP1510AFCT1G meets industry standards.
7.What is the process for return or replacement of NCP1510AFCT1G?
All NCP1510AFCT1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP1510AFCT1G, 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 NCP1510AFCT1G part is unused and in its original packaging.
Return procedure for NCP1510AFCT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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