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Analog Devices Inc. ADM7160ACPZN2.5-R7
- Part No.:
- ADM7160ACPZN2.5-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-UDFN Exposed Pad, CSP
- Datasheet:
-
ADM7160ACPZN2.5-R7.pdf
- Description:
- IC REG LINEAR 2.5V 200MA 6LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:890
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Product details
Overview
ADM7160ACPZN2.5-R7 from Analog Devices is an ultralow-noise, 200 mA low-dropout linear regulator with fixed 2.5 V output, 150 mV dropout at full load, 9.5 µVrms (0.1 Hz–100 kHz) output noise, and 54 dB PSRR at 100 kHz. It operates from 2.2 V to 5.5 V input and delivers stable power to high-resolution ADCs and RF signal chains.
For engineers reviewing the ADM7160ACPZN2.5-R7 datasheet, ADM7160ACPZN2.5-R7 pinout, ADM7160ACPZN2.5-R7 application, or ADM7160ACPZN2.5-R7 equivalent, this page provides verified package mapping (6-lead LFCSP), confirmed noise/PSRR/load regulation specs, EN-controlled enable functionality, and validated alternatives for precision analog supply design.
Technical Context
The ADM7160ACPZN2.5-R7 uses a PMOS pass transistor architecture with internal reference and error amplifier feedback, enabling stable regulation without external bypass capacitors. Its ultralow noise stems from proprietary circuit topology-not post-regulation filtering-preserving PSRR and transient response integrity across 0.1 Hz–1 MHz bandwidth.
It integrates EN pin with internal 2.6 MΩ pull-down, undervoltage lockout (1.96 V rise / 1.28 V fall), thermal shutdown (150°C trip), and current limiting (220–400 mA). Designed for operation with ±30% 1 µF ceramic capacitors, it supports compact layouts in space-constrained RF and data acquisition systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±1% initial accuracy; −2.5%/+1.5% over line/load/temperature ensures stable reference for 16-bit ADCs. |
| Output Noise | 9.5 µVrms (0.1 Hz–100 kHz); enables <1 LSB noise floor in 18-bit SAR ADCs powered directly from VOUT. |
| PSRR | 54 dB at 100 kHz with 1 V headroom; suppresses switching noise from upstream DC/DC converters feeding RF VCOs. |
| Dropout Voltage | 150 mV at 200 mA; allows operation down to VIN = 2.65 V, supporting single-cell Li-ion or 3.3 V rail post-regulation. |
| Quiescent Current | 265 µA typical at 200 mA load; minimizes power loss in always-on sensor front-ends. |
| Enable Threshold | EN logic high ≥1.2 V (VIN-dependent); supports direct MCU GPIO control without level-shifting in 1.8 V/3.3 V systems. |
| Thermal Protection | 150°C shutdown with 15°C hysteresis; prevents permanent damage during sustained overload or poor PCB heat sinking. |
Pinout & Package
The ADM7160ACPZN2.5-R7 is packaged in a 6-lead LFCSP (3 mm × 3 mm × 0.75 mm) with exposed pad (EPAD) requiring solder connection to GND for optimal thermal performance (θJA = 63.6°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply terminal | Accepts 2.2–5.5 V; requires ≥0.7 µF ceramic capacitor to GND for stability and noise rejection. |
| GND | Power ground reference | Common return path for input/output currents; EPAD must be connected to this node for thermal conduction. |
| EN | Enable control input | Active-high logic input with internal 2.6 MΩ pull-down; ties to VIN for automatic startup. |
| NC | No-connect terminal | Pins 2 and 5 are unconnected die pads; must remain floating-no routing or soldering permitted. |
| VOUT | Regulated output terminal | Delivers 2.5 V ±1.5% under all operating conditions; bypassed with ≥0.7 µF ceramic capacitor to GND. |
| EPAD | Exposed thermal pad | Electrically tied to GND; mandatory solder connection improves thermal resistance by >40% vs. TSOT variant. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow noise without bypass cap | Eliminates need for dedicated 10 nF noise-reduction capacitor-reducing BOM count and PCB area in RF modules. |
| Stable with 1 µF ±30% ceramics | Enables use of low-profile, high-reliability X5R/X7R MLCCs instead of larger, voltage-sensitive alternatives. |
| PMOS pass device | Provides near-zero reverse current leakage and eliminates body diode conduction during input short-circuit events. |
| Integrated UVLO & thermal shutdown | Prevents erroneous startup below 1.96 V and protects against junction overheating without external monitoring circuitry. |
| Soft-start (180 µs @ 3.3 V) | Controls inrush current during power-up, preventing supply rail collapse in multi-rail systems sharing input capacitance. |
Applications
| ADC/DAC Power Supplies | RF, VCO, and PLL Power Supplies |
|---|---|
Use Scenario: Powering 16-bit/18-bit SAR or sigma-delta ADCs in portable instrumentation. IC Role / Device Role / Timing Role: Low-noise analog supply rail decoupling sensitive reference and analog input stages. Use Value: 9.5 µVrms noise ensures <0.5 LSB noise contribution at 2.5 V full-scale, preserving ENOB. |
Use Scenario: Supplying voltage-controlled oscillators and PLL charge pumps in wireless transceivers. IC Role / Device Role / Timing Role: Clean bias source isolating phase noise-sensitive VCO cores from digital switching noise. Use Value: 54 dB PSRR at 100 kHz attenuates DC/DC ripple that would otherwise modulate VCO frequency. |
| Post dc-to-dc regulation | Low-power sensor interface |
Use Scenario: Final-stage regulation after buck converter in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Ripple suppression and transient smoothing for microcontroller analog peripherals. Use Value: 150 mV dropout enables >92% efficiency at 2.5 V out from 2.65 V input, extending battery life. |
Use Scenario: Powering MEMS accelerometers and precision op-amps in wearable health monitors. IC Role / Device Role / Timing Role: Stable 2.5 V reference for ratiometric sensor excitation and ADC conversion. Use Value: ±1.5% total accuracy over temperature maintains calibration integrity across −40°C to +125°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL7407LPGEDR | 7-channel 200 mA sink driver with integrated LDO; 15 µVrms noise (10 Hz–100 kHz), no EN pin, 3.3 V only. | Designed for LED/solenoid drive with regulated bias-not optimized for standalone analog rail isolation. | Select when driving multiple loads with shared 2.5 V reference is unnecessary and board space favors integrated drivers. |
| LP5907MFX-2.5/NOPB | 250 mA LDO with 6.5 µVrms noise (10 Hz–100 kHz), 250 mV dropout at 250 mA, 5-pin SOT-23 package. | Lacks UVLO and thermal shutdown; requires external 10 nF bypass cap for lowest noise performance. | Choose for ultra-low-noise priority in non-safety-critical consumer applications where protection features are secondary. |
Compared with TPL7407LPGEDR and LP5907MFX-2.5/NOPB, the ADM7160ACPZN2.5-R7 uniquely combines 9.5 µVrms noise, integrated protection, EN control, and LFCSP thermal performance-making it the only option qualified for high-reliability RF and precision data acquisition systems.
Availability
ADM7160ACPZN2.5-R7 is available at Aetrix Electronics and suitable for ADC/DAC power supplies, RF VCO/PLL biasing, and post-DC/DC regulation requiring stable component supply, low-noise performance, and industrial temperature range support.
Supply support for ADM7160ACPZN2.5-R7 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 precision instrumentation, communications, and industrial markets since 1965.
The ADM7160 product line delivers ultralow-noise, low-quiescent-current LDOs specifically engineered for noise-sensitive analog signal chains-including high-resolution data converters and RF synthesizers-where PSRR, transient response, and thermal reliability are critical.
FAQ
What is the maximum input voltage for the ADM7160ACPZN2.5-R7?
The ADM7160ACPZN2.5-R7 supports an absolute maximum input voltage of +6.5 V relative to GND, but its operational input range is specified from 2.2 V to 5.5 V. Exceeding 5.5 V may trigger internal protection or cause permanent damage, and operation above this range is not characterized or guaranteed per the datasheet.
Does the ADM7160ACPZN2.5-R7 require an external bypass capacitor for low-noise operation?
No-the ADM7160ACPZN2.5-R7 achieves 9.5 µVrms output noise (0.1 Hz–100 kHz) without any external bypass capacitor due to its proprietary internal noise-reduction architecture. This eliminates the need for a dedicated 10 nF capacitor, simplifying layout and reducing component count in space-constrained designs.
What is the thermal resistance (θJA) of the ADM7160ACPZN2.5-R7 package?
The ADM7160ACPZN2.5-R7 in its 6-lead LFCSP package has a junction-to-ambient thermal resistance (θJA) of 63.6°C/W when mounted on a standard 4-layer PCB per JEDEC JESD51-7. This value assumes proper soldering of the exposed pad (EPAD) to a GND plane; omitting EPAD connection degrades thermal performance significantly.
Can the ADM7160ACPZN2.5-R7 be used with ceramic capacitors smaller than 1 µF?
No-the ADM7160ACPZN2.5-R7 requires a minimum output capacitance of 0.7 µF, but Analog Devices specifies 1 µF (±30%) as the recommended value for guaranteed stability, transient response, and noise performance across temperature and voltage. Using capacitors below this threshold risks oscillation or degraded PSRR.
How does the EN pin behavior change with varying input voltage?
The EN pin thresholds of the ADM7160ACPZN2.5-R7 scale with VIN: active threshold ranges from ~1.2 V at VIN = 2.2 V to ~2.0 V at VIN = 5.5 V, with hysteresis of ~120 mV. This VIN-referenced design ensures robust enable/disable control across the full 2.2–5.5 V input range without external level-shifting circuitry.
ADM7160ACPZN2.5-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-UDFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 20 µA
- Current - Supply (Max):
- 350 µA
- PSRR:
- 54dB ~ 43dB (100kHz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-LFCSP-UD (2x2)
ADM7160ACPZN2.5-R7 FAQ
1.How can I place an order for ADM7160ACPZN2.5-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM7160ACPZN2.5-R7 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 ADM7160ACPZN2.5-R7 reliable?
The price and inventory of ADM7160ACPZN2.5-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM7160ACPZN2.5-R7 is usually 5 days.
3.What payment methods are accepted for ADM7160ACPZN2.5-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM7160ACPZN2.5-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM7160ACPZN2.5-R7?
ADM7160ACPZN2.5-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM7160ACPZN2.5-R7 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 ADM7160ACPZN2.5-R7?
For technical support, including ADM7160ACPZN2.5-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM7160ACPZN2.5-R7 requirements.
6.How does Aetrix verify that ADM7160ACPZN2.5-R7 is sourced from the original manufacturer or authorized distributors?
All ADM7160ACPZN2.5-R7 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 ADM7160ACPZN2.5-R7 meets industry standards.
7.What is the process for return or replacement of ADM7160ACPZN2.5-R7?
All ADM7160ACPZN2.5-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM7160ACPZN2.5-R7, 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 ADM7160ACPZN2.5-R7 part is unused and in its original packaging.
Return procedure for ADM7160ACPZN2.5-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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