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Analog Devices Inc. ADP5310AREZN-R7
- Part No.:
- ADP5310AREZN-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
ADP5310AREZN-R7.pdf
- Description:
- IC REG BUCK ADJ DL 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:784
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Product details
Overview
ADP5310AREZN-R7 from Analog Devices is a 3-channel integrated power management IC featuring two synchronous buck regulators (800 mA and 300 mA/50 mA) and a high-side load switch (494 mΩ @ 2.5 V), all in a 16-lead TSSOP_EP package. It operates from 2.7 V to 15.0 V input, delivers ±1.5% output accuracy in PWM mode, supports 600 kHz/1.2 MHz switching, and achieves 700 nA quiescent current in hysteresis mode - ideal for battery-powered energy metering and medical keep-alive supplies.
For engineers reviewing the ADP5310AREZN-R7 datasheet, ADP5310AREZN-R7 pinout, ADP5310AREZN-R7 application, or ADP5310AREZN-R7 equivalent, key selection criteria include ultralow IQ hysteresis operation, dual-mode buck regulation (PSM/PWM), factory-programmable output voltages, integrated load switch with QOD, and −40°C to +125°C junction temperature rating.
Technical Context
The ADP5310AREZN-R7 implements current-mode PWM control for Channel 1 (800 mA) and selectable hysteresis/PWM operation for Channel 2 (50 mA/300 mA), with SYNC/MODE pin determining mode. Its internal 1.2 V LDO (VREG) powers bias circuitry, while UVLO (2.55 V rising), OCP, and thermal shutdown ensure robust protection.
Channel 3 integrates a high-side load switch powered from Channel 2's output (1.65 V–5.5 V), enabling domain isolation and quick output discharge. All three channels share a common 16-lead TSSOP_EP package with exposed pad for thermal dissipation and operate across −40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 2.7 V to 15.0 V - supports multi-cell alkaline/NiMH or single/dual Li-ion/LiMnO₂ sources without external pre-regulation. |
| Quiescent current (hysteresis) | 700 nA - enables >10-year battery life in zero-load keep-alive applications like gas/water meter backup rails. |
| Channel 1 output current | 800 mA - sufficient to power microcontrollers, sensors, and RF transceivers in portable instrumentation. |
| Channel 2 output modes | Hysteresis (50 mA) or PWM (300 mA) - selectable via SYNC/MODE pin for trade-off between ultra-low IQ and low-noise performance. |
| Load switch RDS(ON) | 494 mΩ @ 2.5 V - limits voltage drop and self-heating during active domain power delivery. |
| Switching frequency | 600 kHz or 1.2 MHz (±15%) - allows compact 4.7 µH inductors and reduces EMI compared to sub-500 kHz solutions. |
| Output accuracy (PWM) | ±1.5% over −40°C to +125°C - ensures stable ADC reference, sensor biasing, and MCU core voltage under wide thermal conditions. |
Pinout & Package
ADP5310AREZN-R7 is housed in a 16-lead TSSOP_EP (exposed pad) package, optimized for thermal performance and board space efficiency. The exposed pad must be soldered to a large copper ground plane per Analog Devices' layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN1 / PVIN2 | Main power inputs | Shared 2.7–15 V supply for Channels 1 & 2; PVIN1 must be connected to PVIN2 per datasheet. |
| SW1 / SW2 | Switching node outputs | Drive external inductors (L1/L2); require low-ESR ceramic output capacitors and careful routing to minimize EMI. |
| FB1 / FB2 | Feedback inputs | Set output voltage via resistor divider (adjustable) or factory-trimmed (fixed); 0.800 V reference for both channels. |
| EN1 / EN3 | Enable inputs | Logic-level control (VIH = 1.2 V, VIL = 0.4 V) for independent channel startup/shutdown sequencing. |
| SYNC/MODE | Mode select & sync input | Configures Channel 2 operation (low = hysteresis, high = PWM) and accepts 400 kHz–1.4 MHz external clock for synchronization. |
| PWRGD | Open-drain power-good flag | Indicates Channel 1 output is within 92% of nominal value; requires external pull-up for MCU monitoring. |
| VOUT3 | Load switch output | Delivers regulated power from Channel 2 output; supports quick discharge (QOD) when enabled. |
| AGND / PGND1 / PGND2 | Analog & power grounds | Separate AGND (precision reference) and PGNDx (high-current return) paths prevent noise coupling into feedback loops. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow IQ hysteresis mode | 700 nA quiescent current enables >10-year battery life in always-on metering and medical backup rails. |
| Dual-mode Channel 2 regulation | Factory-selectable hysteresis (50 mA) or PWM (300 mA) operation via SYNC/MODE pin for optimal efficiency/noise trade-off. |
| Integrated load switch with QOD | 494 mΩ RDS(ON) at 2.5 V and active quick-discharge path isolate downstream domains and prevent floating voltages. |
| Factory-programmable outputs | Fixed output options (1.2 V–5.0 V, 3-bit for Ch1; 1.2 V–5.0 V in 50/100 mV steps for Ch2) reduce BOM count and simplify design-in. |
| Robust protection suite | UVLO (2.55 V rising), overcurrent protection (OCP), and thermal shutdown (135°C) ensure safe operation across industrial temperature range. |
Applications
| Energy Metering | Portable Medical Devices |
|---|---|
Use Scenario: Gas/water meters requiring decade-long battery life with periodic RF transmission and sensor wake-up. IC Role / Device Role / Timing Role: Primary power manager delivering regulated rails to MCU, sensor front-end, and sub-GHz transceiver. Use Value: 700 nA hysteresis mode extends primary battery life beyond 10 years; dual-buck architecture isolates noise-sensitive analog sections from digital switching noise. | Use Scenario: Handheld glucose monitors or pulse oximeters operating from coin cells or small Li-ion packs. IC Role / Device Role / Timing Role: Single-chip solution generating 3.3 V for MCU, 1.8 V for sensor interface, and isolated 2.8 V for display backlight via load switch. Use Value: 16-lead TSSOP_EP minimizes PCB area; 100% duty-cycle capability maintains output during low-input brownout conditions typical in aging batteries. |
| Keep-Alive Power Supplies | Industrial Sensor Nodes |
Use Scenario: Backup power for real-time clocks, nonvolatile memory, and security keys in PLCs or gateways during main power loss. IC Role / Device Role / Timing Role: Ultralow-power buck regulator (Ch2) provides dedicated 1.2 V or 1.8 V rail with fast wake-up from hysteresis mode. Use Value: Hysteresis-to-PWM transition in <8 clock cycles enables rapid response to system wake events; PWRGD flag signals stable rail to host controller. | Use Scenario: Wireless vibration or temperature sensors deployed in remote industrial environments with limited maintenance access. IC Role / Device Role / Timing Role: Dual-buck + load switch powers MCU, MEMS sensor, and LoRaWAN transceiver with independent enable control and domain isolation. Use Value: −40°C to +125°C junction rating ensures reliability in uncontrolled enclosures; RDS(ON) < 700 mΩ limits self-heating during extended transmit bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62840DLCR | Single 1.8-A buck with 150 nA IQ; no second buck or load switch; 2.7–6.5 V input. | Suitable only for single-rail, ultra-low-IQ apps; lacks multi-channel integration and wide VIN. | Select when only one high-efficiency rail is needed and input is ≤6.5 V. |
| MAX20004AATP+T | Dual 600 mA bucks (no hysteresis mode); 2.5 µA IQ; 3.5–36 V input; includes watchdog timer. | Better for automotive (AEC-Q100) but higher IQ and no ultralow-power hysteresis option. | Select for harsh-environment automotive use where hysteresis mode is not required. |
Compared with TPS62840DLCR and MAX20004AATP+T, ADP5310AREZN-R7 uniquely combines ultralow 700 nA hysteresis IQ, dual-mode buck regulation, integrated load switch, and 2.7–15 V input in one TSSOP_EP package - making it optimal for space-constrained, long-life battery systems requiring multiple isolated rails.
Availability
ADP5310AREZN-R7 is available at Aetrix Electronics and suitable for energy metering, portable medical devices, and industrial sensor nodes requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for ADP5310AREZN-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADP5310AREZN-R7 belongs to Analog Devices' ultralow-power PMIC family, designed specifically for battery-operated instrumentation, metering, and medical devices demanding multi-rail integration, nanoscale quiescent current, and extended temperature operation.
FAQ
What is the minimum input voltage supported by the ADP5310AREZN-R7?
The ADP5310AREZN-R7 supports a minimum input voltage of 2.7 V on both PVIN1 and PVIN2 pins, enabling direct operation from two alkaline, NiMH, or single LiMnO₂ cells. This wide 2.7 V to 15.0 V range eliminates the need for pre-regulators in multi-source battery systems.
How does the SYNC/MODE pin affect the operation of the ADP5310AREZN-R7?
The SYNC/MODE pin serves dual functions for Channel 2: when logic low, it enables ultralow-power hysteresis mode (700 nA IQ, 50 mA output); when logic high, it selects fixed-frequency PWM mode (1.4 mA IQ, 300 mA output). It also accepts external 400 kHz–1.4 MHz clocks for synchronization of both buck regulators in the ADP5310AREZN-R7.
Does the ADP5310AREZN-R7 support 100% duty-cycle operation?
Yes, the ADP5310AREZN-R7 supports 100% duty-cycle operation in PWM mode for both Channel 1 and Channel 2. This allows the output voltage to track the input down to near-VIN levels during brownout conditions - critical for maintaining functionality in aging battery systems where input voltage drops below nominal regulation points.
What protection features are integrated into the ADP5310AREZN-R7?
The ADP5310AREZN-R7 integrates input under-voltage lockout (UVLO, 2.55 V rising), overcurrent protection (OCP) on all three channels, and thermal shutdown (135°C with 15°C hysteresis). These protections operate independently per channel and are active across the full −40°C to +125°C junction temperature range.
Can the ADP5310AREZN-R7 generate fixed output voltages without external resistors?
Yes, the ADP5310AREZN-R7 supports factory-programmed fixed outputs: Channel 1 offers 1.2 V, 1.5 V, 1.8 V, 2.5 V, 2.85 V, 3.3 V, or 5.0 V (3-bit trim); Channel 2 supports 1.2 V to 3.6 V in 50 mV steps and 3.6 V to 5.0 V in 100 mV steps (8-bit trim). No external feedback resistors are required for these configurations.
ADP5310AREZN-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 15V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 5V
- Current - Output:
- 50mA, 300mA, 800mA
- Frequency - Switching:
- 600kHz , 1.2GHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP-EP
ADP5310AREZN-R7 FAQ
1.How can I place an order for ADP5310AREZN-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP5310AREZN-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 ADP5310AREZN-R7 reliable?
The price and inventory of ADP5310AREZN-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP5310AREZN-R7 is usually 5 days.
3.What payment methods are accepted for ADP5310AREZN-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP5310AREZN-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP5310AREZN-R7?
ADP5310AREZN-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP5310AREZN-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 ADP5310AREZN-R7?
For technical support, including ADP5310AREZN-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP5310AREZN-R7 requirements.
6.How does Aetrix verify that ADP5310AREZN-R7 is sourced from the original manufacturer or authorized distributors?
All ADP5310AREZN-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 ADP5310AREZN-R7 meets industry standards.
7.What is the process for return or replacement of ADP5310AREZN-R7?
All ADP5310AREZN-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP5310AREZN-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 ADP5310AREZN-R7 part is unused and in its original packaging.
Return procedure for ADP5310AREZN-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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