Monolithic Power Systems Inc. EV5416-R-00D

Overview

EV5416-R-00D from Monolithic Power Systems is a digital power management IC integrating four synchronous buck converters (4.5A/2.5A/4A/2A), five LDOs (including RTC-dedicated 3.2V LDO), and I²C/OTP programmability in a 28-pin QFN (4mm×4mm) package. It delivers precise, sequenced power for multi-rail 5V systems such as IP cameras and SSDs with ±4kV HBM ESD protection.

For engineers reviewing the EV5416-R-00D datasheet, EV5416-R-00D pinout, EV5416-R-00D application, or EV5416-R-00D equivalent, key selection criteria include configurable power-on/off sequencing via OTP, real-time I²C voltage and mode control, thermal shutdown at 153°C, and support for dynamic voltage scaling across nine regulated outputs.

Technical Context

The MP5416 core architecture uses constant-on-time (COT) control per buck channel to achieve fast transient response with minimal external components. Each buck operates at a default 1.5MHz switching frequency in CCM, reducing required inductor and capacitor size while supporting programmable forced PWM or auto PFM/PWM modes.

System-level logic includes dual power control paths: OTP-configured hardwired sequencing (e.g., 2ms–6ms slot delays) and runtime I²C reconfiguration of enable states, current limits (Buck1/Buck3), slew rate, discharge, SYSEN, and SFRST. All five LDOs feature ≤100mV dropout at 300mA and PSRR up to 51dB at 10kHz.

Key Specifications

Pinout & Package

EV5416-R-00D is housed in a thermally enhanced 28-pin QFN package (4mm × 4mm, 0.5mm pitch) with exposed thermal pad. Pin layout supports optimized high-current routing: dedicated GND pins (GND1/GND2/GND3/GND4) and wide-trace SW nodes (SW1/SW2/SW3/SW4) minimize voltage drop and thermal rise.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital PMIC applications.

Compared with MP5416GR-Z (identical function, different packaging), EV5416-R-00D offers evaluation-ready configuration and pre-programmed OTP defaults; versus RTQ2132B-QT, it delivers higher integration (4+5 rails), OTP-based sequencing, and RTC support-critical for time-sensitive embedded systems.

Availability

EV5416-R-00D is available at Aetrix Electronics and suitable for IP camera power systems, SSD controller boards, smart TV mainboards, and POS terminal processor modules requiring stable component supply, long-term lifecycle support, and verified thermal performance across industrial temperature ranges.

Supply support for EV5416-R-00D 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

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, with over two decades of expertise in DC/DC conversion, PMICs, and motor drivers.

The MP5416 belongs to MPS's digital PMIC product line, engineered specifically for space-constrained, multi-rail consumer and industrial systems requiring programmable sequencing, high efficiency, and robust fault protection without external timing components.

FAQ

What is the default I²C slave address for EV5416-R-00D?

The default I²C slave address is 0x69. This value is fixed in silicon and cannot be altered via OTP or runtime register writes. Address conflicts require hardware-level resolution using external level shifters or multiplexers, as no software-configurable address bits exist.

Can EV5416-R-00D operate with separate input voltages on VIN1 and VIN2?

No. The datasheet explicitly requires VIN1, VIN2, VIN3, VIN4, and AVIN to be connected to the same bus voltage. Separating these inputs violates absolute maximum ratings and may cause latch-up or premature failure due to internal substrate biasing constraints.

How does the RSTO signal behave during power sequencing?

RSTO is an open-drain output that remains low until Buck4's output reaches 90% of its target voltage (3.3V), then asserts high after a programmable 10ms delay. It stays high throughout normal operation and pulls low only during intentional power-off or thermal shutdown sequences.

Is OTP programming supported after device soldering?

No. OTP (one-time programmable) eFuses are configured during final test at the factory and cannot be rewritten in-system. All OTP settings-including power-on slot timing, default voltages, and I²C address-are permanently set before shipment and immutable in the field.

What is the minimum recommended output capacitance for Buck1?

The datasheet specifies a minimum 22µF ceramic output capacitor for Buck1 when operating at 4.5A. Lower values risk instability and excessive output ripple; X5R/X7R dielectrics with ≤5mΩ ESR are required to maintain COT loop stability and meet transient response targets.

Does EV5416-R-00D support spread-spectrum frequency modulation?

No. The MP5416 does not implement spread-spectrum modulation. Its switching frequency is fixed at 1.5MHz (typical) or adjustable within a narrow range via OTP; EMI reduction relies on optimized layout, COT control, and integrated low-ESR ceramic capacitor support-not frequency dithering.

What happens to LDO outputs during thermal shutdown?

During thermal shutdown, all LDOs (including OUTRTC) are immediately disabled. OUTRTC remains off until both VIN2 and AVIN exceed their respective UVLO rising thresholds *and* die temperature falls below the recovery hysteresis (130°C), ensuring safe restart only after thermal stabilization.