Microchip Technology MIC5335-JGYMT-TR

Overview

MIC5335-JGYMT-TR from Microchip Technology is a dual-channel, 300 mA ultra-low dropout (ULDO) linear regulator in a 1.6 mm × 1.6 mm TDFN-6 package, delivering fixed 2.5 V and 1.8 V outputs. It features 75 mV dropout at 300 mA, 65 dB PSRR at 1 kHz, independent active-high enable pins, and µCap stability with only 1 µF ceramic output capacitors. It is engineered for power rail separation in RF receiver and baseband subsystems of portable media players.

For engineers reviewing the MIC5335-JGYMT-TR datasheet, MIC5335-JGYMT-TR pinout, MIC5335-JGYMT-TR application, or MIC5335-JGYMT-TR equivalent, key selection criteria include dual-rail voltage pairing (2.5 V/1.8 V), thermal performance in ultra-small footprint (θJA = 100°C/W), low-noise operation (90 µVRMS), fast 30 µs turn-on time, and independent LDO control for sequenced power-up in space-constrained mobile designs.

Technical Context

The MIC5335-JGYMT-TR integrates two independent CMOS-based ULDO regulators sharing a common VIN and GND, each with dedicated EN1/EN2 inputs and separate VOUT1/VOUT2 outputs. Its architecture enables simultaneous or staggered activation, supporting dynamic power gating in multi-voltage SoC interfaces.

Each LDO employs a high-bandwidth error amplifier and internal reference to maintain ±2.0% output accuracy over –40°C to +125°C, with load regulation of ≤2.0% from 100 µA to 300 mA. Thermal shutdown and current limit (340–950 mA) are implemented per channel, and ground current remains ≤125 µA per enabled LDO under full load.

Key Specifications

Pinout & Package

Package: 6-lead Thin DFN (TDFN-6, MT), 1.6 mm × 1.6 mm × 0.55 mm, exposed EPAD connected to GND for thermal dissipation (θJA = 100°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MIC5335-JGYMT-TR, MIC5334-JGYMT-TR reduces channel count and footprint but sacrifices independent 1.8 V regulation, while TPL7407LPGQ1 offers integrated drivers but lacks the precision dual-rail architecture and low-noise performance required for portable RF applications.

Availability

MIC5335-JGYMT-TR is available at Aetrix Electronics and suitable for portable media players, GPS receivers, and digital still cameras requiring stable component supply with tight voltage tolerances, low-noise operation, and ultra-compact packaging.

Supply support for MIC5335-JGYMT-TR 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

Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.

The MIC5335 product line delivers dual-channel, high-density ULDO regulators optimized for space-constrained portable electronics demanding low dropout, low noise, and minimal external components - targeting mobile, imaging, and wireless connectivity applications.

FAQ

What output voltages does the MIC5335-JGYMT-TR provide?

The MIC5335-JGYMT-TR provides fixed output voltages of 2.5 V on VOUT1 and 1.8 V on VOUT2, as indicated by the "JG" voltage code in its part number. These values are factory-trimmed and guaranteed over –40°C to +125°C with ±2.0% accuracy at room temperature and ±3.0% across full temperature range. The MIC5335-JGYMT-TR does not support adjustable outputs or other voltage combinations.

Can the MIC5335-JGYMT-TR operate with zero load current?

Yes, the MIC5335-JGYMT-TR remains stable and in regulation with no load on either output - a feature critical for applications like CMOS RAM keep-alive or real-time clock backup. This behavior is confirmed in Section 4.4 ("No-Load Stability") of the datasheet and distinguishes it from many legacy LDOs that require minimum load for stability. The MIC5335-JGYMT-TR achieves this via internal compensation optimized for 1 µF ceramic capacitors.

What is the maximum ambient temperature for continuous 300 mA operation on both channels of the MIC5335-JGYMT-TR?

At 300 mA per channel with VIN = 3.3 V, VOUT1 = 2.5 V, and VOUT2 = 1.8 V, the MIC5335-JGYMT-TR dissipates approximately 0.39 W. With θJA = 100°C/W and TJ(MAX) = +125°C, the maximum allowable ambient temperature is 86°C - calculated using Equation 4-3 in the datasheet. Derating is required above this temperature; the MIC5335-JGYMT-TR enters thermal shutdown if junction temperature exceeds +125°C.

Is an input capacitor required for the MIC5335-JGYMT-TR, and what value is recommended?

Yes, a minimum 1 µF ceramic capacitor is required from VIN to GND for stable operation of the MIC5335-JGYMT-TR, as specified in Section 4.2 ("Input Capacitor"). Low-ESR X7R or X5R dielectric types are recommended. Additional high-frequency bypassing (e.g., 10 nF NPO) is advised in RF-sensitive designs. Omitting the input capacitor risks instability and degraded PSRR performance - a requirement explicitly stated for the MIC5335-JGYMT-TR in all operating conditions.

How does the enable functionality work on the MIC5335-JGYMT-TR?

The MIC5335-JGYMT-TR features two independent active-high enable inputs: EN1 controls VOUT1 (2.5 V), and EN2 controls VOUT2 (1.8 V). A logic high ≥1.1 V enables the respective LDO; a logic low ≤0.2 V disables it, reducing ground current to ≤2 µA. Pins must never be left floating - they require explicit pull-up or GPIO drive. This dual-enable architecture enables flexible power sequencing, and is a defining feature of the MIC5335-JGYMT-TR's design.