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Analog Devices Inc. ADP2127ACNZ1.260R7
- Part No.:
- ADP2127ACNZ1.260R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-SMD, No Lead
- Datasheet:
-
ADP2127ACNZ1.260R7.pdf
- Description:
- IC REG BUCK 1.26V 500MA 6EWLP
- Quantity:
- Payment:
- Shipping:
Inventory:2,785
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Product details
Overview
ADP2127ACNZ1.260R7 from Analog Devices is a fixed-output, synchronous step-down DC-DC converter optimized for space-constrained portable applications. It delivers 500 mA continuous output current at 1.26 V with 2.1 V to 5.5 V input range, 6 MHz switching frequency, and ultralow 0.200 mm height in 6-pad EWLP package-used in camera modules and image stabilization systems.
For engineers reviewing the ADP2127ACNZ1.260R7 datasheet, ADP2127ACNZ1.260R7 pinout, ADP2127ACNZ1.260R7 application, or ADP2127ACNZ1.260R7 equivalent, key selection criteria include its external clock enable (6–27 MHz), auto/PWM mode control via MODE pin, spread-spectrum EMI reduction, internal soft start, and output-to-ground short-circuit protection.
Technical Context
The ADP2127ACNZ1.260R7 uses a hybrid voltage-mode PWM control scheme with cycle-by-cycle peak current limiting and internal compensation. Its 6 MHz fixed-frequency operation enables use of 1.0 µH multilayer inductors and 2.2 µF ceramic capacitors while maintaining stable transient response across 2.1–5.5 V input.
It supports dual enable methods: external clock signal (6–27 MHz) on EXTCLK or logic-high signal (≥1.3 V), with shutdown current ≤0.3 µA. Mode selection via MODE pin determines PFM/PWM auto-transition behavior, with PFM threshold dependent on input voltage and hysteresis preventing oscillation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.26 V ±2% in PWM mode; ensures precise core voltage for low-power processors and sensors. |
| Max Output Current | 500 mA continuous; sufficient for image sensor biasing and digital audio ICs without thermal derating on standard PCBs. |
| Input Voltage Range | 2.1 V to 5.5 V; compatible with single Li+/Li-polymer cells and three-cell alkaline/NiMH batteries. |
| Switching Frequency | 6 MHz nominal (4.8–6.8 MHz); enables ultra-small passive components and reduces board area by >50% vs. 1–2 MHz converters. |
| Shutdown Current | 0.3 µA typical; extends battery life in standby states for always-on camera modules and wearable devices. |
| Package Height | 0.200 mm max (6-pad EWLP); meets strict Z-height requirements in slim mobile phone and DSC form factors. |
| EMI Reduction | Spread-spectrum modulation; lowers peak radiated emissions to meet FCC Class B limits without added shielding or ferrites. |
Pinout & Package
ADP2127ACNZ1.260R7 uses a 6-pad Embedded Wafer Level Package (EWLP) with 0.200 mm maximum height and 0.4 mm pitch. The package is bottom-side terminated with solderable pads; no exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | MODE | Mode select input: logic low enables auto mode (PFM/PWM transition); logic high forces PWM-only operation-no pull-up/pull-down required. |
| A2 | VIN | Main power input: accepts 2.1–5.5 V; requires local 2.2 µF ceramic decoupling capacitor placed within 2 mm. |
| B1 | SW | Switch node: connects to inductor; carries high di/dt; must be routed with minimal loop area to reduce EMI. |
| B2 | EXTCLK | Enable input: accepts 6–27 MHz clock or logic-high signal (≥1.3 V); drives device startup and shutdown with <1 µs timing resolution. |
| C1 | FB | Feedback input: internally connected to 1.26 V reference; no external resistor divider needed-fixed-output configuration only. |
| C2 | GND | Power ground: common return for VIN, SW, FB, MODE, and EXTCLK; must connect to solid ground plane under IC. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated PMOS/NMOS switches eliminate external Schottky diode-reducing conduction loss by ~30% at 100 mA and enabling >90% efficiency in PFM mode. |
| Internal soft start | Gradual peak current limit ramp-up prevents input inrush current spikes during startup-eliminates need for external soft-start RC network. |
| Output short-circuit protection | Auto-retry shutdown at VOUT < 0.52 V with 450 µs off-time-limits fault power to <10 mW and enables safe recovery after cable disconnect or connector short. |
| Undervoltage lockout | Rising threshold at 2.1 V ±0.2 V with 300 mV hysteresis-ensures clean startup only when battery is above functional minimum, avoiding brown-out resets. |
| Thermal shutdown | Activates at 146°C junction temperature (PWM mode only) with 13°C hysteresis-prevents permanent damage during sustained overload or poor heatsinking. |
Applications
| Camera Module Power | Image Stabilization System |
|---|---|
Use Scenario: Powers CMOS image sensor and ISP in smartphone front/rear cameras requiring stable 1.26 V at up to 400 mA with minimal ripple. IC Role / Device Role / Timing Role: Primary voltage regulator delivering regulated core supply; operates in auto mode to extend battery runtime during preview (light load) and capture (heavy load). Use Value: Spread-spectrum switching avoids interference with RF bands; 0.2 mm height enables integration behind stacked camera modules. | Use Scenario: Supplies gyro/accelerometer and actuator driver ICs in optical image stabilization (OIS) subsystems with tight Z-height constraints. IC Role / Device Role / Timing Role: Dedicated low-noise power source for analog sensor front-end and closed-loop motor control; uses PWM mode during active correction for lowest output impedance. Use Value: Internal compensation eliminates external compensation network; 6 MHz frequency allows use of 0805-size 1.0 µH inductor saving >1.2 mm² board area. |
| Digital Still Camera Core | Portable Audio Codec Supply |
Use Scenario: Provides 1.26 V core voltage to DSP and memory interface in compact digital still/video cameras operating from 3×AA alkaline cells. IC Role / Device Role / Timing Role: Main system regulator managing dynamic load steps from idle to burst capture; MODE pin tied low for automatic efficiency optimization. Use Value: 500 mA capability supports simultaneous JPEG encoding and LCD backlight drive; UVLO prevents erratic behavior as alkaline cells discharge below 2.1 V. | Use Scenario: Powers stereo audio codec and headphone amplifier in Bluetooth earbuds, requiring low quiescent current and fast load transient response. IC Role / Device Role / Timing Role: Low-noise supply rail with <200 mVpp ripple at 150 mA; enters PFM mode during music pause to minimize battery drain. Use Value: 300 µA auto-mode quiescent current extends playback time by >12%; soft start prevents pop/click during power-on sequencing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62260DRVR | Fixed 1.2 V output; 3–6 V input; 2.25 MHz switching; 300 mA output; 6-pin WSON package (0.75 mm height) | Lacks spread-spectrum EMI reduction and external clock enable; lower output current limits use in lower-power audio codecs only. | Select when 1.2 V (not 1.26 V) is acceptable and board height >0.75 mm permits larger package. |
| RT8059GJ6 | Adjustable output (0.6–5.5 V); 2.5–5.5 V input; 1.5 MHz switching; 600 mA output; 6-pin DFN (0.5 mm height) | Requires external feedback resistors; no PFM/PWM auto mode; higher profile incompatible with ultra-thin camera modules. | Select when adjustable output voltage or higher current is required and EMI sensitivity is low. |
Compared with TPS62260DRVR and RT8059GJ6, ADP2127ACNZ1.260R7 uniquely combines 1.26 V fixed output, 0.2 mm height, spread-spectrum EMI control, and external clock enable-making it optimal for next-gen camera modules where Z-height and RF coexistence are critical.
Availability
ADP2127ACNZ1.260R7 is available at Aetrix Electronics and suitable for camera modules, image stabilization systems, digital still/video cameras, and portable audio equipment requiring stable component supply with guaranteed long-term availability.
Supply support for ADP2127ACNZ1.260R7 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and consumer markets with precision power, sensing, and signal chain solutions.
The ADP2127ACNZ1.260R7 belongs to Analog Devices' ultralow-profile DC-DC converter family, designed specifically for battery-powered portable electronics where board area, efficiency across load range, and EMI compliance are primary constraints.
FAQ
What is the exact output voltage tolerance of the ADP2127ACNZ1.260R7 in PWM mode?
The ADP2127ACNZ1.260R7 has a PWM mode output voltage accuracy of ±2% over full input range (2.1 V to 5.5 V) and temperature (−40°C to +85°C). This means the actual output remains between 1.235 V and 1.285 V under all specified operating conditions, ensuring reliable operation of 1.26 V–tolerant cores like image sensor ISPs and low-voltage microcontrollers.
Does the ADP2127ACNZ1.260R7 support logic-level enable, or only external clock enable?
The ADP2127ACNZ1.260R7 supports external clock enable (6–27 MHz) on the EXTCLK pin as standard. Logic-high enable (≥1.3 V) is explicitly documented as available only on certain models within the ADP2126/ADP2127 family-not confirmed for ADP2127ACNZ1.260R7 per its ordering guide and pin function table. Therefore, ADP2127ACNZ1.260R7 relies solely on clock-based enable.
What is the recommended inductor value and type for the ADP2127ACNZ1.260R7?
Analog Devices specifies a 1.0 µH multilayer ceramic inductor (e.g., TDK CKP1608S1R0 or equivalent) for the ADP2127ACNZ1.260R7. This value is optimized for 6 MHz operation, achieving >85% efficiency at 100 mA and maintaining stability across input voltage range. Inductor saturation current must exceed 770 mA to accommodate peak switch current limit.
How does the MODE pin affect efficiency and transient response in the ADP2127ACNZ1.260R7?
When MODE is pulled low, ADP2127ACNZ1.260R7 operates in auto mode-switching to PFM at light loads (<50 mA) for peak efficiency (>92%) and <500 µA quiescent current, but with slower transient response. When MODE is high, it forces PWM mode-maintaining 6 MHz frequency for fastest load step recovery (<10 µs), albeit at higher light-load quiescent current (~12 mA).
Is the ADP2127ACNZ1.260R7 pin-compatible with other variants in the ADP2126/ADP2127 family?
Yes-the ADP2127ACNZ1.260R7 shares identical 6-pad EWLP package, pinout, and footprint with all ADP2127 variants (e.g., ADP2127ACNZ1.200R7). It is not pin-compatible with ADP2126 (6-ball bumped die), which uses different package geometry and ball layout despite identical pin functions.
ADP2127ACNZ1.260R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-SMD, No Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.1V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.26V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA
- Frequency - Switching:
- 6MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-EWLP (1.3x0.90)
ADP2127ACNZ1.260R7 FAQ
1.How can I place an order for ADP2127ACNZ1.260R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2127ACNZ1.260R7 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 ADP2127ACNZ1.260R7 reliable?
The price and inventory of ADP2127ACNZ1.260R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP2127ACNZ1.260R7 is usually 5 days.
3.What payment methods are accepted for ADP2127ACNZ1.260R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2127ACNZ1.260R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2127ACNZ1.260R7?
ADP2127ACNZ1.260R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2127ACNZ1.260R7 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 ADP2127ACNZ1.260R7?
For technical support, including ADP2127ACNZ1.260R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2127ACNZ1.260R7 requirements.
6.How does Aetrix verify that ADP2127ACNZ1.260R7 is sourced from the original manufacturer or authorized distributors?
All ADP2127ACNZ1.260R7 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 ADP2127ACNZ1.260R7 meets industry standards.
7.What is the process for return or replacement of ADP2127ACNZ1.260R7?
All ADP2127ACNZ1.260R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2127ACNZ1.260R7, 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 ADP2127ACNZ1.260R7 part is unused and in its original packaging.
Return procedure for ADP2127ACNZ1.260R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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