Analog Devices Inc. ADP1614ACPZ-R7

Overview

ADP1614ACPZ-R7 from Analog Devices is a fixed 3 A current-limit, pin-selectable frequency (650 kHz / 1.3 MHz), step-up DC-to-DC switching converter operating from 2.5 V to 5.5 V input and delivering up to 20 V output. It uses current-mode PWM control with integrated 100 mΩ NMOS switch, features undervoltage lockout, thermal shutdown, and adjustable soft start, and is deployed in TFT LCD bias supplies where compact size and stable high-voltage generation are critical.

For engineers reviewing the ADP1614ACPZ-R7 datasheet, ADP1614ACPZ-R7 pinout, ADP1614ACPZ-R7 application, or ADP1614ACPZ-R7 equivalent, this page delivers verified specifications, validated pin functions, confirmed fixed-current operation, real-world efficiency curves at 5 V input, and two rigorously cross-checked alternative parts for boost converter design trade-offs.

Technical Context

The ADP1614ACPZ-R7 implements current-mode PWM regulation with internal transconductance error amplifier (150 µA/V), 1.245 V feedback reference, and duty-cycle-limited switching (max 92%). Its fixed 3 A peak current limit is factory-trimmed and independent of external resistor-unlike adjustable variants-and its FREQ pin enables direct selection between 650 kHz and 1.3 MHz oscillator frequencies via logic-level grounding or VIN tying.

Thermal protection activates at 150°C with 20°C hysteresis, and UVLO engages below 2.33 V (rising) with 100 mV hysteresis. The 3 mm × 3 mm, 10-lead LFCSP package integrates an exposed pad (EP) tied to GND for thermal dissipation, supporting ≤0.8 mm profile requirements in space-constrained portable and display systems.

Key Specifications

Pinout & Package

ADP1614ACPZ-R7 is housed in a 3 mm × 3 mm, 10-lead lead frame chip scale package (LFCSP) with 0.8 mm max height and thermally enhanced exposed pad (EP) that must be soldered to a PCB ground plane.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar step-up DC-to-DC converter applications.

Compared with ADP1614ACPZ-650-R7, the ADP1614ACPZ-R7 eliminates external current-setting components but forfeits adjustability; versus TPS61088RHLR, it offers tighter thermal hysteresis and smaller footprint but lower max current and narrower input range - making it optimal for space-constrained, fixed-rail TFT and portable medical designs.

Availability

ADP1614ACPZ-R7 is available at Aetrix Electronics and suitable for TFT LCD bias supplies, portable medical monitors, and industrial sensor signal conditioning requiring stable component supply, long-term lifecycle support, and guaranteed Pb-free compliance.

Supply support for ADP1614ACPZ-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, with design centers worldwide and ISO 9001-certified manufacturing.

The ADP1614 belongs to Analog Devices' high-efficiency, low-profile boost converter product line, engineered specifically for space-constrained applications demanding reliable high-voltage generation from single-cell batteries or low-voltage rails.

FAQ

What is the exact current limit specification for ADP1614ACPZ-R7?

The ADP1614ACPZ-R7 has a fixed peak current limit of 3.10 A typical (2.50–3.60 A min/max over temperature and process), factory-trimmed and independent of external components - unlike adjustable variants that require a CLRES resistor. This value is confirmed in Table 1 of the Rev. B datasheet under "Fixed Peak Current Limit" and applies across −40°C to +125°C junction temperature.

How does the FREQ pin operate on ADP1614ACPZ-R7?

On ADP1614ACPZ-R7, Pin 9 functions exclusively as FREQ: connecting it to GND selects 650 kHz operation, connecting it to VIN selects 1.3 MHz, and leaving it floating is strictly prohibited. This differs from adjustable versions (e.g., ADP1614ACPZ-650-R7) where Pin 9 serves as CLRES. The FREQ pin's logic thresholds are VIH ≥ 1.6 V and VIL ≤ 0.3 V, per Table 1.

Does ADP1614ACPZ-R7 require an external current-setting resistor?

No, ADP1614ACPZ-R7 does not require an external current-setting resistor. Its 3 A current limit is fixed and internally trimmed - eliminating RCL, associated layout complexity, and tolerance-induced variation. This is explicitly stated in the General Description ("available with fixed 3 A current limit") and confirmed in Table 1's "Fixed Peak Current Limit" row, which lists no RCL dependency.

What is the thermal performance of ADP1614ACPZ-R7 in its LFCSP package?

ADP1614ACPZ-R7 in the 3 mm × 3 mm LFCSP achieves θJA = 47°C/W and θJC = 7.22°C/W under JEDEC JESD 51-9 conditions (4-layer board, natural convection). Its thermal shutdown triggers at 150°C with 20°C hysteresis, and the exposed pad (Pin 11) must be soldered to a solid GND plane to realize these ratings - verified in Thermal Resistance (Table 3) and Pin Configuration (Figure 3) sections.

Can ADP1614ACPZ-R7 be used for output voltages above 15 V?

Yes, ADP1614ACPZ-R7 supports output voltages up to 20 V, as specified in the General Description and Output Voltage parameter (Table 1, "VOUT: VIN to 20 V"). Efficiency data in Figures 26–27 confirms stable operation at 15 V and 20 V outputs with 5 V input, and the 21 V absolute maximum rating on SW pin (Table 2) provides margin for transient spikes in high-VOUT configurations.