Monolithic Power Systems Inc. EV3336A-C-00A

Overview

EV3336A-C-00A from Monolithic Power Systems is a dual-channel flash LED driver IC with synchronous current-mode PWM boost architecture, delivering up to 2A per channel in flash mode, ±7% current accuracy, and I²C-compatible interface (400kHz). It supports flash/assist/indicator/5V DC modes and integrates VIN-to-VOUT disconnection, OVP, OTP, UVLO, and LED open/short protection. Used in smartphone camera modules for low-light image capture.

For engineers reviewing the EV3336A-C-00A datasheet, EV3336A-C-00A pinout, EV3336A-C-00A application, or EV3336A-C-00A equivalent, key selection criteria include per-channel 2A flash current capability, selectable 1/2/3/4MHz switching frequency, WLCSP-20 thermal layout advantages, I²C programmability, and integrated protection features for mobile imaging systems.

Technical Context

The EV3336A-C-00A implements a synchronous boost converter with current-mode PWM control to regulate two independent high-current LED sources. Its selectable switching frequency (1–4MHz) enables optimization of efficiency vs. size, while fold-back Fsw reduces stress during overcurrent events.

It operates across 2.7–5.5V input, delivers <5.5V output, and supports five functional modes: flash (2A/ch), assist (319mA/ch), indicator (31.5kHz PWM dimming), 5V DC (constant output), and standby. Dual GND-referenced LED cathodes improve PCB thermal dissipation.

Key Specifications

Pinout & Package

EV3336A-C-00A is housed in a 20-ball WLCSP package (1.6mm × 2.0mm, 0.4mm pitch) with GND-referenced LED cathodes for optimal thermal performance. Pin functions are validated per MP3336A datasheet Rev. 1.0 (Monolithic Power Systems, 2019).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel flash LED driver applications.

Compared with RT8547GQW and ISL97642IRTZ-T7A, the EV3336A-C-00A uniquely combines dual 2A flash channels, full I²C configurability, GND-referenced thermal layout, and five operational modes in a 1.6mm × 2.0mm WLCSP-making it optimal for space-constrained, multi-function mobile imaging systems.

Availability

EV3336A-C-00A is available at Aetrix Electronics and suitable for smartphone camera modules, tablet imaging subsystems, and compact digital still cameras requiring stable component supply, guaranteed long-term availability, and RoHS-compliant packaging.

Supply support for EV3336A-C-00A 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 design centers in the US, China, and Taiwan, and global distribution.

The MP3336A product line targets mobile imaging power management, delivering highly integrated, thermally optimized LED drivers that replace discrete solutions in space- and efficiency-critical camera subsystems.

FAQ

What are the supported I²C clock frequencies for EV3336A-C-00A?

The EV3336A-C-00A supports standard-mode I²C up to 400kHz. It does not support fast-mode plus (1MHz) or high-speed mode. Pull-up resistors on SCL/SDA must be sized for bus capacitance ≤400pF to ensure reliable communication at maximum speed.

Can EV3336A-C-00A drive LEDs with common-anode configuration?

No. The EV3336A-C-00A drives LEDs in high-side configuration with anodes connected to LED1/LED2 pins and cathodes referenced to GND. It does not support common-anode or floating-cathode topologies. External inversion or redesign is required for common-anode use.

What is the purpose of the STR pin, and how is it timed?

The STR (strobe) pin provides hardware-triggered flash activation with sub-10µs latency. A rising edge or sustained high-level signal initiates flash mode immediately, independent of I²C state. Timing is controlled externally via MCU GPIO or camera SoC strobe output.

Does EV3336A-C-00A require external compensation components?

No. The EV3336A-C-00A uses internal compensation for its current-mode boost controller. Only external components needed are input/output capacitors, power inductor (1.1µH), and optional current-sense resistors for input current limit programming - no loop compensation network is required.

How does the VIN-to-VOUT disconnection function protect the system?

When disabled (EN1 = low), an internal MOSFET disconnects the boost output from VIN, preventing reverse current flow and eliminating VOUT leakage through the inductor or output capacitor. This ensures zero standby current draw and protects downstream circuits during power-down sequences.

Is the 5V DC mode regulated, and what is its load capacity?

Yes, the 5V DC mode delivers a regulated 5.0V ±2% output. It supports up to 500mA continuous load, intended for powering auxiliary sensors or interface circuitry-not for high-current peripherals. Output voltage remains stable across input range (2.7–5.5V) and load (0–500mA).

What thermal derating applies above 60°C ambient?

Per MP3336A datasheet Rev. 1.0, output current derates linearly from 2A at 25°C to 1.2A at 85°C ambient. Derating begins at 60°C (1.6A max), with full thermal shutdown activating at 150°C junction temperature. PCB copper area under the WLCSP is critical to maintain this curve.