Analog Devices Inc. ADP5092ACPZ-1-R7

Overview

ADP5092ACPZ-1-R7 from Analog Devices is an ultralow power energy harvesting PMU with integrated MPPT, cold-start boost regulator, and dual-path power management for photovoltaic and thermoelectric sources. It delivers 150 mA regulated output (1.5 V–3.6 V), operates from 0.08 V input after cold start, achieves 510 nA operating quiescent current, and supports battery/supercapacitor charging with programmable 2.2 V–5.2 V termination voltage - enabling self-powered wireless sensor nodes.

For engineers reviewing the ADP5092ACPZ-1-R7 datasheet, ADP5092ACPZ-1-R7 pinout, ADP5092ACPZ-1-R7 application, or ADP5092ACPZ-1-R7 equivalent, key selection criteria include cold-start capability below 380 mV, dynamic MPPT sensing mode, REG_GOOD flag monitoring, DIS_SW RF-friendly shutdown control, and LFCSP-24 package compatibility with thermal constraints in space-constrained IoT edge devices.

Technical Context

The ADP5092ACPZ-1-R7 integrates a hysteresis-mode boost regulator with cold-start charge pump, a hybrid REG_OUT stage supporting automatic boost/LDO mode switching, and dedicated energy storage control logic. Its MPPT engine operates in either dynamic sensing mode (using MINOP and CBP) or no-sensing mode (fixed ratio via MPPT pin resistor), while the REG_GOOD flag monitors REG_OUT voltage with 92.5% typical rising threshold and 2% hysteresis.

Power path management includes independent BAT and BACK_UP switches with programmable thresholds (VSETBK, VSETSD), leakage currents under 50 nA at BAT/BACK_UP pins, and thermal shutdown at 142°C. The device uses internal reference (1.011 V typical) and supports factory-trimmed input peak current options (200–300 mA).

Key Specifications

Pinout & Package

The ADP5092ACPZ-1-R7 is housed in a 24-lead 4 mm × 4 mm LFCSP package with exposed pad connected to AGND. Thermal resistance θJA = 58.7°C/W enables reliable operation up to +125°C ambient in sealed sensor enclosures.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar energy harvesting PMU applications.

Compared with ADP5092ACPZ-1-R7, ADP5091ACPZ-1-R7 offers identical harvesting performance but trades REG_GOOD for LLD - suitable for simpler wake-up logic - while BQ25504RGTT provides lower integration, narrower voltage ranges, and no backup path, making it appropriate only for non-redundant, fixed-voltage energy harvesting systems.

Availability

ADP5092ACPZ-1-R7 is available at Aetrix Electronics and suitable for photovoltaic energy harvesting nodes, thermoelectric industrial monitors, self-powered wireless sensors, portable wearables, and battery-free IoT edge devices requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for ADP5092ACPZ-1-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, industrial automation, and energy-efficient systems.

The ADP5092ACPZ-1-R7 belongs to Analog Devices' ultralow power energy harvesting PMU product line, designed specifically for battery-free and maintenance-free operation in wireless sensor networks and ambient-powered IoT endpoints.

FAQ

What is the cold start capability of the ADP5092ACPZ-1-R7?

The ADP5092ACPZ-1-R7 achieves cold start from as low as 380 mV (typical) at the VIN pin using an internal charge pump, enabling autonomous operation even when the SYS capacitor is fully discharged. This allows deployment in ultra-low-light PV environments or low-ΔT thermoelectric applications where initial voltage is insufficient to activate conventional regulators. The cold start circuit charges SYS to 1.87 V (typical VSYS_TH) before handing off to the main boost regulator.

How does the ADP5092ACPZ-1-R7 implement maximum power point tracking (MPPT)?

The ADP5092ACPZ-1-R7 supports two MPPT modes: dynamic sensing (using MINOP and CBP pins to track open-circuit voltage) and no-sensing (fixed ratio set by resistor on MPPT pin). In dynamic mode, it samples VIN OCV every 16 seconds and adjusts input regulation to maintain optimal power extraction as source characteristics change - critical for varying light intensity or thermal gradients. The MPPT bias current is 2.0 µA (typical).

What is the function of the REG_GOOD pin on the ADP5092ACPZ-1-R7?

The REG_GOOD pin on the ADP5092ACPZ-1-R7 is an open-drain output that asserts high when REG_OUT voltage reaches 92.5% (typical) of its programmed value, with 2% hysteresis. Unlike the ADP5091's LLD pin, REG_GOOD directly monitors regulated output stability - enabling precise MCU power-on reset sequencing, sensor activation timing, and fault detection in safety-critical energy harvesting systems using ADP5092ACPZ-1-R7.

Can the ADP5092ACPZ-1-R7 manage both rechargeable and primary batteries simultaneously?

Yes, the ADP5092ACPZ-1-R7 integrates dual-path power management: the BAT pin handles rechargeable storage (Li-ion, supercapacitors), while the BACK_UP pin supports primary cells (e.g., CR2032). Independent thresholds (VSETBK, VSETSD) and switches allow seamless handover - for example, when BAT voltage falls below VSETBK (programmable 2.0 V to VBAT_TERM), the BACK_UP path activates without interrupting SYS supply, ensuring continuous operation in ADP5092ACPZ-1-R7-based systems.

How does the DIS_SW pin improve RF performance in ADP5092ACPZ-1-R7 designs?

The DIS_SW pin on the ADP5092ACPZ-1-R7 allows an MCU or RF transceiver to temporarily halt the boost regulator's switching activity with a 1 µs response delay and no burst noise - preventing conducted EMI from interfering with sensitive 2.4 GHz BLE or sub-GHz ISM band transmissions. This RF-transparent shutdown preserves signal integrity during transmit windows while maintaining SYS rail stability via stored energy, a key advantage in ADP5092ACPZ-1-R7-based wireless sensor nodes.