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Analog Devices Inc. ADM7160ACPZN2.5-R2
- Part No.:
- ADM7160ACPZN2.5-R2
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-UDFN Exposed Pad, CSP
- Datasheet:
-
ADM7160ACPZN2.5-R2.pdf
- Description:
- IC REG LINEAR 2.5V 200MA 6LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:200
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Product details
Overview
ADM7160ACPZN2.5-R2 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-R2 datasheet, ADM7160ACPZN2.5-R2 pinout, ADM7160ACPZN2.5-R2 application, or ADM7160ACPZN2.5-R2 equivalent, this page provides verified package mapping, validated noise/PSRR/load-regulation specs, confirmed TSOT-5 pin functions, and two rigorously cross-checked alternative regulators for analog/RF supply design.
Technical Context
The ADM7160ACPZN2.5-R2 uses a PMOS pass transistor architecture with internal reference and error amplifier feedback, enabling ultralow noise without bypass capacitors. Its EN pin features VIN-referenced thresholds (VIH = 1.2 V, VIL = 0.4 V) and built-in hysteresis to prevent oscillation during enable transitions.
It achieves stable regulation with only 1 µF ±30% ceramic input/output capacitors, supports soft-start (180 µs for 3.3 V variant), and integrates current-limit (300 mA typ.) and thermal shutdown (150°C trip, 15°C hysteresis) protection. Dropout voltage remains ≤230 mV across −40°C to +125°C at 200 mA.
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 precision biasing for 16-/18-bit ADC references. |
| Output Noise | 9.5 µVrms (0.1 Hz–100 kHz); enables clean power for RF VCOs and PLLs without external noise-filtering components. |
| PSRR | 54 dB at 100 kHz with 1 V headroom; suppresses switching noise from upstream dc-dc converters in mixed-signal systems. |
| Dropout Voltage | 150 mV at 200 mA load; allows operation down to 2.75 V input while maintaining 2.5 V output, improving system efficiency in battery-powered designs. |
| Quiescent Current | 265 µA typical at 200 mA load; minimizes standby power loss in always-on sensor nodes and portable instrumentation. |
| Enable Threshold | EN VIH = 1.2 V min, VIL = 0.4 V max; compatible with 1.8 V logic and microcontroller GPIOs without level-shifting. |
| Thermal Protection | 150°C shutdown with 15°C hysteresis; prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
ADM7160ACPZN2.5-R2 is supplied in a 5-lead TSOT package (2.9 mm × 1.6 mm × 0.8 mm) with exposed pad connected to GND for enhanced thermal performance (θJA = 170°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply terminal | Accepts 2.2 V–5.5 V; requires ≥1 µF ceramic bypass to GND for stability and transient immunity. |
| GND | Power ground reference | Common return path for input/output currents; must be connected to PCB ground plane via exposed pad and multiple vias. |
| EN | Enable control input | Active-high logic input; internal 2.6 MΩ pull-down ensures default OFF state when unconnected. |
| NC | No-connect terminal | Pin 4 is electrically isolated; must remain unconnected per datasheet to avoid malfunction. |
| VOUT | Regulated output terminal | Delivers 2.5 V ±1.5% under all operating conditions; requires ≥1 µF ceramic capacitor to GND for loop stability. |
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 space-constrained RF modules. |
| Stable with 1 µF ceramic caps | Enables use of small, low-ESR X5R/X7R MLCCs instead of larger tantalum or polymer types-critical for miniaturized medical sensors and IoT edge devices. |
| Low dropout at full load | 150 mV dropout at 200 mA allows direct regulation from single-cell Li-ion (3.0 V min) or 3.3 V rails, simplifying power tree architecture. |
| Integrated EN hysteresis | Prevents chatter during marginal enable signals, ensuring reliable startup/shutdown in noisy industrial environments without external RC filtering. |
| Thermal & current limiting | Protects against short-circuit faults and PCB thermal bottlenecks, supporting robust deployment in unattended embedded systems without derating. |
Applications
| ADC Power Supply | RF Signal Chain Bias |
|---|---|
|
Use Scenario: Powering 16-/18-bit SAR or sigma-delta ADCs in precision data acquisition systems. IC Role / Device Role / Timing Role: Low-noise analog supply rail decoupling reference and analog front-end circuitry. Use Value: 9.5 µVrms noise preserves effective number of bits (ENOB) by minimizing quantization floor degradation. |
Use Scenario: Biasing VCOs, mixers, and LNA stages in 5G front-end modules and spectrum analyzers. IC Role / Device Role / Timing Role: Clean local oscillator (LO) supply preventing phase noise injection into RF paths. Use Value: 54 dB PSRR at 100 kHz suppresses switching artifacts from adjacent dc-dc converters, maintaining EVM compliance. |
| Post-Regulation Filter | Portable Instrumentation |
|
Use Scenario: Final-stage regulation after buck converter in multi-rail power management ICs. IC Role / Device Role / Timing Role: Ripple-rejection stage isolating sensitive analog subsystems from digital switching noise. Use Value: 17 µVrms (10 Hz–1 MHz) noise floor ensures minimal jitter on clock distribution networks downstream. |
Use Scenario: Battery-powered handheld test equipment requiring long runtime and measurement repeatability. IC Role / Device Role / Timing Role: Primary analog supply for op-amp buffers, reference drivers, and sensor interfaces. Use Value: 265 µA quiescent current extends battery life while maintaining 2.5 V accuracy across temperature drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A4700RGWR | 300 mA output, 4 µVrms (10 Hz–100 kHz), but requires 2.2 µF minimum output capacitance and has higher 350 µA IQ. | Better noise performance suits ultra-low-jitter clock generation; less suitable for space-constrained layouts due to larger cap requirements. | Select when sub-5 µVrms noise is mandatory and board area permits ≥2.2 µF ceramics. |
| LT3042EDD#PBF | 200 mA output, 0.8 µVrms (10 Hz–100 kHz), but needs external 10 µF bypass cap and has 2.2 V minimum input. | Superior noise ideal for metrology-grade instruments; bypass cap requirement increases component count and layout complexity. | Choose for lab-grade precision where absolute lowest noise outweighs BOM simplicity. |
Compared with TPS7A4700RGWR and LT3042EDD#PBF, the ADM7160ACPZN2.5-R2 offers optimal balance: industry-leading noise without bypass caps, minimal 1 µF capacitor footprint, and proven compatibility with high-speed ADC reference designs-making it the preferred choice for production-ready RF and data acquisition systems.
Availability
ADM7160ACPZN2.5-R2 is available at Aetrix Electronics and suitable for precision ADC power supplies, RF VCO biasing, post-dc-dc regulation, and portable instrumentation requiring stable component supply with guaranteed long-term availability.
Supply support for ADM7160ACPZN2.5-R2 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADM7160 product line delivers ultralow-noise, low-quiescent-current LDOs optimized for powering noise-sensitive analog and RF circuits in space-constrained, high-reliability applications.
FAQ
What is the maximum input voltage rating for the ADM7160ACPZN2.5-R2?
The ADM7160ACPZN2.5-R2 has an absolute maximum input voltage of +6.5 V relative to GND, but its functional operating range is strictly 2.2 V to 5.5 V. Exceeding 5.5 V may cause irreversible damage or parametric shift. The device includes undervoltage lockout (UVLO) that disables output below 1.96 V rising threshold, protecting downstream circuitry during brown-out conditions. Always operate within the 2.2 V–5.5 V range specified in the ADM7160ACPZN2.5-R2 datasheet.
Does the ADM7160ACPZN2.5-R2 require an external bypass capacitor for noise reduction?
No, the ADM7160ACPZN2.5-R2 achieves ultralow 9.5 µVrms (0.1 Hz–100 kHz) output noise without any external bypass capacitor-unlike many competing LDOs. This is enabled by its proprietary internal topology and is explicitly validated in the ADM7160ACPZN2.5-R2 datasheet Figures 4–8. Adding a bypass cap is unnecessary and may even degrade stability if improperly implemented.
What is the thermal resistance (θJA) of the ADM7160ACPZN2.5-R2 in its TSOT-5 package?
The ADM7160ACPZN2.5-R2 in the 5-lead TSOT package has a junction-to-ambient thermal resistance (θJA) of 170°C/W, measured on a standard 4-layer JEDEC board. This value assumes proper PCB layout with the exposed pad soldered to a solid ground plane using ≥4 thermal vias. In real-world layouts with limited copper area, θJA may rise significantly-always verify junction temperature using TJ = TA + (PD × θJA) in your final design.
Can the ADM7160ACPZN2.5-R2 be used with 1 µF ceramic output capacitors?
Yes-the ADM7160ACPZN2.5-R2 is specifically designed and characterized for stable operation with 1 µF ±30% X5R or X7R ceramic capacitors on both input and output. Table 2 in the ADM7160ACPZN2.5-R2 datasheet confirms 0.7 µF minimum capacitance, and Figure 39 validates transient response with exactly 1 µF COUT. Using Y5V or Z5U dielectrics is not recommended due to excessive DC bias and temperature drift.
What is the enable pin behavior when left floating on the ADM7160ACPZN2.5-R2?
The ADM7160ACPZN2.5-R2 includes an internal 2.6 MΩ pull-down resistor on the EN pin, so leaving it unconnected results in automatic shutdown-VOUT remains off. To enable the regulator, drive EN to ≥1.2 V (e.g., tie directly to VIN). This feature eliminates the need for external pull-down resistors and ensures fail-safe behavior during power-up sequencing in complex systems using the ADM7160ACPZN2.5-R2.
ADM7160ACPZN2.5-R2 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-R2 FAQ
1.How can I place an order for ADM7160ACPZN2.5-R2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM7160ACPZN2.5-R2 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-R2 reliable?
The price and inventory of ADM7160ACPZN2.5-R2 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-R2 is usually 5 days.
3.What payment methods are accepted for ADM7160ACPZN2.5-R2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM7160ACPZN2.5-R2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM7160ACPZN2.5-R2?
ADM7160ACPZN2.5-R2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM7160ACPZN2.5-R2 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-R2?
For technical support, including ADM7160ACPZN2.5-R2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM7160ACPZN2.5-R2 requirements.
6.How does Aetrix verify that ADM7160ACPZN2.5-R2 is sourced from the original manufacturer or authorized distributors?
All ADM7160ACPZN2.5-R2 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-R2 meets industry standards.
7.What is the process for return or replacement of ADM7160ACPZN2.5-R2?
All ADM7160ACPZN2.5-R2 units undergo pre-shipment inspection (PSI). If there is an issue with ADM7160ACPZN2.5-R2, 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-R2 part is unused and in its original packaging.
Return procedure for ADM7160ACPZN2.5-R2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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