Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Monolithic Power Systems Inc. MP1471GJ-P

Name: MP1471GJ-P
Brand: Monolithic Power Systems Inc.
SKU: MP1471GJ-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MP1471GJ-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: SOT-23-6 Thin, TSOT-23-6

Datasheet:: MP1471GJ-P.pdf

Description:: IC REG BUCK ADJ 3A TSOT23-6

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:440

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MP1471GJ-P from Monolithic Power Systems is a synchronous step-down DC/DC converter with integrated 150mΩ high-side and 70mΩ low-side MOSFETs, delivering up to 3A peak output current across a 4.7V–16V input range, fixed 500kHz switching frequency, and adjustable 0.8V–0.9×VIN output voltage - deployed in game consoles and flat-panel display power rails.

For engineers reviewing the MP1471GJ-P datasheet, MP1471GJ-P pinout, MP1471GJ-P application, or MP1471GJ-P equivalent, key selection criteria include internal MOSFET R_DS(on), AAM light-load efficiency mode, thermal shutdown at 150°C, and TSOT23-6 package constraints for compact PCB layouts.

Technical Context

The MP1471GJ-P operates in fixed-frequency peak-current-mode control with internal compensation, enabling fast transient response and simplified loop stability. Its proprietary AAM (Advanced Asynchronous Modulation) mode reduces switching frequency under light load to maintain high efficiency without external control circuitry.

It integrates a 5V internal regulator powered directly from VIN, a 6.5V Zener-clamped EN pin, and bootstrap charging circuitry supporting high-duty-cycle operation. Protection includes cycle-by-cycle over-current limit (3.5–4.2A), hiccup-mode short-circuit recovery, and thermal shutdown with 20°C hysteresis.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	4.7V to 16V - supports wide industrial and consumer supply rails including 5V, 12V, and 15V systems.
Output Voltage Range	0.8V to 0.9×VIN - enables precise regulation down to sub-1V core supplies via external resistor divider.
Switching Frequency	Fixed 500kHz (±10%) - balances EMI performance and inductor size; no external timing component required.
Peak Output Current	3A - sustained peak delivery with internal MOSFETs eliminates need for external power switches.
Feedback Reference Voltage	800mV ±3% - sets output accuracy; enables tight regulation with standard 1% resistors.
Thermal Shutdown Threshold	150°C - protects die during overload or poor heatsinking; resumes operation at ~130°C.
Soft-Start Duration	1ms - prevents output overshoot and inrush current during power-up.

Pinout & Package

MP1471GJ-P is housed in a space-constrained 6-pin TSOT23-6 package (2.9mm × 1.6mm × 0.85mm), optimized for high-density PCB layouts with exposed pad thermal enhancement.

Pin/Terminal	Circuit Role	Design Meaning
1 GND	System ground reference	Primary return path for output, feedback, and internal regulator; requires low-impedance copper pour and multiple vias.
2 SW	Switch node	High-frequency drain connection of internal high-side MOSFET; must be routed with minimal loop area to reduce EMI.
3 IN	Main input supply	Accepts 4.7V–16V; requires local 22µF ceramic decoupling capacitor placed adjacent to pin.
4 FB	Feedback input	Senses output voltage via resistor divider; internal 0.8V reference enables accurate VOUT programming.
5 EN	Enable control	Digital logic input (1.4–1.6V rising threshold); internal 1MΩ pull-down allows floating shutdown.
6 BST	Bootstrap supply	Drives high-side gate via external 1µF capacitor; supports >65% duty cycle when paired with optional external diode.

Key Features

Feature	Design Value
Integrated Power Stage	150mΩ/70mΩ R_DS(on) HS/LS MOSFETs - eliminates external switch losses and reduces BOM count by two devices.
AAM Light-Load Mode	PFM operation below ~340mA inductor peak current - maintains >85% efficiency at 10mA load without external signal conditioning.
Internal Soft-Start	1ms ramp time - prevents output overshoot and limits inrush into downstream capacitors during startup.
Robust Protection Suite	Hiccup-mode OCP + thermal shutdown + UVLO (4.2V rising) - ensures safe operation during fault conditions without latch-up.
Compact Package	TSOT23-6 footprint - fits within 3mm² board area, enabling use in ultra-thin consumer electronics and portable displays.

Applications

Game Consoles

Digital Set-Top Boxes

Use Scenario: Powering SoC I/O and memory interfaces in handheld and home console platforms with dynamic load profiles.

IC Role / Device Role / Timing Role: Primary 3.3V/2.5V buck regulator supplying FPGA I/O banks and DDR termination voltage.

Use Value: AAM mode sustains >88% efficiency at standby currents <50mA, extending battery life in portable variants.

Use Scenario: Generating stable 1.2V, 1.8V, and 3.3V rails for MPEG decoder ICs and HDMI PHYs in cable/satellite receivers.

IC Role / Device Role / Timing Role: Secondary buck stage following AC/DC adapter; regulates low-noise digital core supplies.

Use Value: Fixed 500kHz frequency simplifies EMI filter design while meeting CISPR-22 Class B radiated emissions limits.

Flat-Panel Television

General Purpose Embedded Systems

Use Scenario: Supplying TCON (timing controller) and LED backlight driver logic in LCD/LED TV mainboards.

IC Role / Device Role / Timing Role: Mid-rail converter stepping 12V bus down to 5V for microcontroller and interface ICs.

Use Value: Thermal shutdown at 150°C prevents failure during sustained ambient temperatures up to 85°C in enclosed chassis.

Use Scenario: Providing configurable 0.8–5V outputs for FPGA configuration, sensor interface, and MCU peripherals in industrial controllers.

IC Role / Device Role / Timing Role: Flexible point-of-load regulator with programmable feedback network and enable sequencing support.

Use Value: 0.8V reference and wide input range allow single-part reuse across 3.3V, 2.5V, and 1.2V designs, reducing inventory SKUs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous step-down converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MP1477GJ-Z	Successor with improved 2.5A continuous rating, lower quiescent current (25μA vs. 0.83mA), and enhanced thermal performance in same TSOT23-6 package.	Targeted for new designs requiring higher reliability margin and longer lifetime under thermal stress.	Select MP1477GJ-Z for production releases; MP1471GJ-P remains viable for legacy repair or cost-sensitive replacements where 3A peak suffices.
TPS563201DSGR	TI part with 3A continuous rating, 500kHz fixed frequency, but requires external bootstrap diode and lacks AAM mode - uses D-CAP2 control instead of current-mode.	Better suited for designs needing tighter output voltage tolerance (<±1%) and faster load transient response in server management rails.	Choose TPS563201DSGR only if system-level validation confirms compatibility with non-AAM light-load behavior and external BST routing.

Compared with MP1477GJ-Z, MP1471GJ-P offers proven field reliability but higher light-load quiescent draw; versus TPS563201DSGR, it delivers superior ease-of-use via integrated AAM and simpler layout, though with slightly looser output regulation tolerance.

Availability

MP1471GJ-P is available at Aetrix Electronics and suitable for game consoles, digital set-top boxes, and flat-panel television power subsystems requiring stable component supply across extended product lifecycles.

Supply support for MP1471GJ-P 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.

The MP1471 belongs to MPS's high-efficiency DC/DC converter product line, engineered for compact, thermally constrained consumer electronics where integration, light-load efficiency, and rapid time-to-market are critical.

FAQ

What is the maximum recommended output current for continuous operation?

The MP1471GJ-P is rated for 3A peak output current. For continuous operation, derating is required based on ambient temperature and PCB thermal design. With 2-layer board and 1-in² copper pour, continuous current is limited to ~2.2A at +85°C ambient; full 3A requires 4-layer board with thermal vias and adequate airflow.

Can the MP1471GJ-P operate with an input voltage below 4.7V?

No - the absolute minimum operating input voltage is 4.7V per datasheet specifications. Below this, the internal regulator cannot sustain bias for the control circuitry, and UVLO prevents startup. The absolute maximum input is 17V, with recommended operation capped at 16V for long-term reliability.

Is an external bootstrap diode required for proper operation?

An external bootstrap diode is optional and only beneficial when duty cycle exceeds 65% (e.g., VOUT ≥ 5V with VIN = 12V). The internal bootstrap circuit functions reliably with just a 1µF capacitor for most 3.3V/2.5V applications; adding the diode improves efficiency by ~1–2% under high-duty conditions.

How does the AAM mode affect output voltage ripple at light loads?

In AAM mode, the MP1471GJ-P enters pulse-frequency modulation, reducing switching frequency to maintain regulation. This increases low-frequency output ripple (typically 10–30mV_PP at 10mA), but avoids the high-frequency noise associated with forced PWM. Ripple remains within specification for digital logic supplies.

What is the purpose of the 140mV threshold on the FB pin during fault conditions?

The 140mV FB threshold triggers hiccup-mode protection during output short circuits. When FB drops below this level, the oscillator frequency folds back and the device cycles between brief on-pulses and extended off-periods, limiting average short-circuit current to ~200mA and preventing thermal runaway.

Does the MP1471GJ-P support output voltage tracking or sequencing with other regulators?

No - the MP1471GJ-P lacks dedicated tracking pins or programmable soft-start delay. However, its EN pin can be driven by an external supervisor IC or RC network to coordinate startup timing with other rails, enabling basic power sequencing in multi-rail systems.

What is the minimum recommended inductor value for a 12V-to-3.3V/3A design?

For 12V-to-3.3V conversion at 3A, the datasheet recommends a 6.5µH inductor with ≥3.9A saturation current. Using the inductance formula L = V_OUT(V_IN−V_OUT) / (V_IN × ΔI_L × f_SW), a 4.7µH–10µH range is acceptable; values below 4.7µH increase peak current stress and reduce efficiency.

MP1471GJ-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: SOT-23-6 Thin, TSOT-23-6

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 4.7V

Voltage - Input (Max):: 16V

Voltage - Output (Min/Fixed):: 0.8V

Voltage - Output (Max):: 14.4V

Current - Output:: 3A

Frequency - Switching:: 490kHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TSOT-23-6

MP1471GJ-P FAQ

1.How can I place an order for MP1471GJ-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MP1471GJ-P on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MP1471GJ-P reliable?

The price and inventory of MP1471GJ-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP1471GJ-P is usually 5 days.

3.What payment methods are accepted for MP1471GJ-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP1471GJ-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP1471GJ-P?

MP1471GJ-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP1471GJ-P order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MP1471GJ-P?

For technical support, including MP1471GJ-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP1471GJ-P requirements.

6.How does Aetrix verify that MP1471GJ-P is sourced from the original manufacturer or authorized distributors?

All MP1471GJ-P products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MP1471GJ-P meets industry standards.

7.What is the process for return or replacement of MP1471GJ-P?

All MP1471GJ-P units undergo pre-shipment inspection (PSI). If there is an issue with MP1471GJ-P, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MP1471GJ-P part is unused and in its original packaging.

Return procedure for MP1471GJ-P:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…