Monolithic Power Systems Inc. MP2004DJ-PN-LF-Z

Overview

MP2004DJ-PN-LF-Z from Monolithic Power Systems is a dual-channel, low-noise, high-PSRR linear regulator with fixed 3.0V and 2.85V outputs, ±1% accuracy, 200mA per channel output capability, and 95μVRMS output noise - designed for power-sensitive portable electronics requiring independent enable control and ultra-low quiescent current (114μA at no load).

For engineers reviewing the MP2004DJ-PN-LF-Z datasheet, MP2004DJ-PN-LF-Z pinout, MP2004DJ-PN-LF-Z application, or MP2004DJ-PN-LF-Z equivalent, key selection criteria include dual-output voltage matching (3.0V/2.85V), TSOT23-6 package constraints, EN1/EN2 independent shutdown behavior, thermal shutdown threshold (140°C), and PSRR performance (69dB @100Hz) in battery-powered systems.

Technical Context

The MP2004DJ-PN-LF-Z integrates two independent PMOS-based LDOs sharing a common input and ground, each with dedicated active-high enable pins (EN1/EN2) and internal current limiting (450mA trip) plus thermal shutdown (140°C with 10°C hysteresis). Its architecture enables simultaneous or staggered channel activation while maintaining low dropout (110mV @100mA) and stable operation with ceramic output capacitors as low as 0.47μF.

It operates across 2.5V–6.0V input range, delivers ±1% output accuracy over load (1mA–200mA) and temperature (–40°C to +85°C), and achieves 69dB PSRR at 100Hz and 95μVRMS integrated noise (10Hz–100kHz), making it suitable for noise-sensitive analog rails in RF and mixed-signal subsystems.

Key Specifications

Pinout & Package

MP2004DJ-PN-LF-Z is housed in a 6-pin TSOT23 package (JEDEC MO-193 AB), with exposed pad not electrically connected. The compact 2.9mm × 1.6mm footprint supports high-density portable PCB layouts and requires minimal thermal copper area for operation within 0.45W P_D(MAX) at +25°C ambient.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-output LDO applications.

Compared with XC6216D302MR-G and RP512L283B-TR-F, MP2004DJ-PN-LF-Z uniquely combines matched dual outputs (3.0V/2.85V), 200mA per channel, 69dB PSRR, and 95μVRMS noise in a single TSOT23-6 package - delivering superior integration, efficiency, and noise immunity for space-constrained portable designs.

Availability

MP2004DJ-PN-LF-Z is available at Aetrix Electronics and suitable for cellular phone baseband power, laptop subsystem rail generation, and hand-held medical sensor applications requiring stable component supply, RoHS-compliant packaging, and tape-and-reel delivery for automated assembly.

Supply support for MP2004DJ-PN-LF-Z 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 through authorized partners.

The MP2004 product line targets ultra-low-noise, high-PSRR dual LDOs for battery-powered portable electronics - emphasizing small footprint, independent enable control, and robust thermal/overcurrent protection for mission-critical subsystems.

FAQ

What is the maximum allowable input voltage for MP2004DJ-PN-LF-Z?

The absolute maximum input voltage is 6.5V, but the recommended operating range is 2.5V to 6.0V. Exceeding 6.5V risks permanent damage due to internal junction breakdown. For reliable long-term operation, maintain VIN ≤6.0V and ensure power dissipation stays within thermal limits using θJA = 220°C/W and TJ ≤125°C.

Can MP2004DJ-PN-LF-Z operate with ceramic output capacitors below 1μF?

Yes - the MP2004DJ-PN-LF-Z is specifically designed for ceramic capacitors from 0.47μF to 10μF with ESR <1.2Ω. A 0.47μF X7R ceramic placed close to VOUT1/VOUT2 provides stable regulation and adequate transient response for most portable applications, confirmed by MPS application note AN-101.

Is there any risk of reverse current flow from VOUT to VIN?

Yes - the internal PMOS pass device includes a parasitic body diode from VOUT to VIN. If VOUT exceeds VIN by >0.3V (e.g., during hot-swap or backup battery scenarios), reverse current can flow. MPS recommends adding an external Schottky diode in series with VIN or parallel to the internal diode to block this path, as shown in Figure 4 of the datasheet.

How does the EN1/EN2 pin behavior affect power sequencing?

EN1 and EN2 are independent active-high enables with VIH ≥1.6V and VIL ≤0.45V. Driving EN1 before EN2 establishes 3.0V first, then 2.85V - supporting controlled startup of master-slave subsystems. Pulling either low disables only its respective channel, enabling dynamic rail gating without affecting the other output.

What thermal derating applies above +25°C ambient?

At TA = +70°C, maximum continuous power dissipation drops to 0.20W (from 0.45W at +25°C), calculated as PD(MAX) = (125°C − TA)/220°C/W. To sustain 200mA per channel at elevated ambient, reduce VIN−VOUT differential or enhance PCB copper area under the GND pad to improve heat conduction.

Does MP2004DJ-PN-LF-Z require input capacitance, and what type is recommended?

Yes - a minimum 0.47μF ceramic capacitor is required on VIN, placed as close as possible to Pin 5. Larger values (e.g., 2.2μF) improve line transient response. Tantalum capacitors are acceptable but ceramic is preferred for lower ESR, smaller size, and better reliability across temperature.

What is the guaranteed minimum output voltage accuracy over temperature and load?

The output voltage accuracy is guaranteed at ±1% over the full operating range: –40°C to +85°C junction temperature and 1mA to 200mA load per channel. This specification includes initial tolerance, line regulation (±0.05%/V), and load regulation effects, as verified in Table 1 of the Rev. 0.92 datasheet.