Analog Devices Inc. ADP3419JRM-REEL

Overview

ADP3419JRM-REEL from Analog Devices is a dual bootstrapped high-voltage MOSFET driver with output disable, designed to drive two N-channel MOSFETs in synchronous buck converters for CPU core power. It features 1.7 Ω high-side sourcing resistance, 0.8 Ω low-side sinking resistance, 15–70 ns propagation delay (DRVH), undervoltage lockout at 4.25 V, and operates across 0°C to 100°C in a 10-lead MSOP package.

For engineers reviewing the ADP3419JRM-REEL datasheet, ADP3419JRM-REEL pinout, ADP3419JRM-REEL application, or ADP3419JRM-REEL equivalent, key selection criteria include bootstrapped high-side drive capability up to 26 V BST, adaptive overlap protection with ~1 V zero-crossing threshold, crowbar-triggered DRVL assertion, and light-load efficiency optimization via DRVLSD control.

Technical Context

The ADP3419JRM-REEL implements a single-PWM-input synchronous buck driver architecture with integrated anticross-conduction logic that monitors SW node voltage (~1 V threshold) and DRVH/DRVL timing to prevent shoot-through. Its high-side driver uses external bootstrap (BST–SW) with internal charge transfer control, while the low-side driver references VCC/GND and supports timeout-driven forced turn-on during high-side fault conditions.

Control functions include SD-initiated full shutdown, DRVLSD-gated low-side enable/disable, and CROWBAR-pin-activated crowbar mode that overrides UVLO, SD, and overlap logic to force DRVL high and DRVH low-enabling overvoltage fault response compatible with ADP320x/ADP3422 controller CLAMP outputs.

Key Specifications

Pinout & Package

ADP3419JRM-REEL is housed in a 10-lead Mini Small Outline Package (MSOP, RM-10), 3.0 mm × 3.0 mm body, 0.5 mm pitch, with exposed pad for thermal enhancement per JEDEC MO-187-BA.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual synchronous buck driver applications.

Compared with LM5113MMX/NOPB and MP6908GJ-Z, ADP3419JRM-REEL uniquely integrates high-side bootstrap drive, low-side shutdown (DRVLSD), and crowbar-triggered fault response in a single 10-pin MSOP-enabling compact, self-protected synchronous buck designs without external coordination logic.

Availability

ADP3419JRM-REEL is available at Aetrix Electronics and suitable for mobile computing CPU core power converters, multiphase desktop CPU supplies, and single-supply synchronous buck converters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for ADP3419JRM-REEL 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, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.

The ADP3419JRM-REEL belongs to Analog Devices' power management IC portfolio targeting high-efficiency, high-density DC/DC conversion for portable and computing applications-specifically engineered to simplify synchronous buck implementation with robust fault protection.

FAQ

What is the primary function of the CROWBAR pin on the ADP3419JRM-REEL?

The CROWBAR pin on the ADP3419JRM-REEL is an active-high fault input that forces DRVH low and DRVL high regardless of SD, DRVLSD, or UVLO status-enabling immediate crowbar action to protect downstream loads during overvoltage events. This function is designed to interface directly with CLAMP outputs from controllers like the ADP3203 or ADP3422, and it overrides all other logic states to ensure deterministic fault response in the ADP3419JRM-REEL.

How does the ADP3419JRM-REEL prevent shoot-through in synchronous buck topologies?

The ADP3419JRM-REEL prevents shoot-through using adaptive overlap protection that monitors SW and DRVH node voltages, delaying DRVL turn-on until both fall below 1.6 V-or until the SW transition timeout (t_SWTO = 150–600 ns) expires. This dual-condition approach ensures safe dead-time across temperature, supply, and MOSFET parameter variations, and is intrinsic to the ADP3419JRM-REEL's internal timing architecture without requiring external components.

Can the ADP3419JRM-REEL drive high-side MOSFETs with input voltages above 12 V?

Yes-the ADP3419JRM-REEL supports BST voltages up to 26 V and SW node voltages up to +25 V, making it suitable for synchronous buck converters with input rails up to 24 V. Its high-side driver is bootstrapped relative to SW, and its absolute maximum ratings confirm safe operation with 25 V switch-node transients-enabling robust use in 12 V and 24 V CPU core and industrial power applications with the ADP3419JRM-REEL.

What is the purpose of the DRVLSD pin on the ADP3419JRM-REEL?

The DRVLSD (low-side driver shutdown) pin on the ADP3419JRM-REEL is an active-low control input that disables the low-side driver output (DRVL) independently of the IN signal. When pulled low, it forces DRVL low to suppress reverse inductor current flow-improving light-load efficiency in DCM operation or enabling reverse-voltage blocking. This feature is integral to the ADP3419JRM-REEL's efficiency optimization strategy and requires no external circuitry.

Does the ADP3419JRM-REEL require external bootstrap components, and what are the key selection criteria?

Yes-the ADP3419JRM-REEL requires an external bootstrap diode and capacitor between BST and SW pins. The diode must be Schottky with V_R ≥ V_IN(MAX) + 5 V and low forward drop; the capacitor must be rated ≥ V_IN(MAX) + 5 V and sized per C_BST = Q_HSGATE/ΔV_BST, typically 360–1000 nF for common CPU MOSFETs. These components are mandatory for high-side operation and are explicitly specified in the ADP3419JRM-REEL datasheet application section.