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Monolithic Power Systems Inc. MP3416GQH-Z
- Part No.:
- MP3416GQH-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-VFDFN
- Datasheet:
-
MP3416GQH-Z.pdf
- Description:
- IC REG STEP-UP PS2/USB 1.1A 8QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,527
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Product details
Overview
MP3416GQH-Z from Monolithic Power Systems is a low-quiescent-current (9.5 µA), 1.1 A peak switching current, synchronous step-up DC-DC converter with true output disconnect, adjustable low-battery detection (LBI/LBO), and down-mode operation when VIN > VOUT. It operates from 0.86 V input to deliver regulated 1.8–5.5 V output, enabling single-cell Li-ion, NiMH, or alkaline battery-powered systems requiring high light-load efficiency and battery monitoring.
For engineers reviewing the MP3416GQH-Z datasheet, MP3416GQH-Z pinout, MP3416GQH-Z application, or MP3416GQH-Z equivalent, this device is selected for ultra-low-power boost conversion in space-constrained, battery-sensitive applications where shutdown current (<650 nA), output isolation, and integrated synchronous rectification eliminate external diodes and reduce BOM count.
Technical Context
The MP3416GQH-Z employs peak-current-mode control with variable-frequency boundary conduction mode (BCM) to achieve fast transient response and stable regulation across wide input/output ranges. Its internal P-channel synchronous rectifier replaces external Schottky diodes, reducing conduction loss and improving efficiency at light loads.
It integrates dedicated circuitry for low-battery detection (0.4 V threshold with 70 mV hysteresis), thermal shutdown (155 °C with 20 °C hysteresis), and down-mode operation via a disconnection MOSFET that isolates output when VIN exceeds VOUT by >0.2 V - critical for battery-backed systems during charge or parallel supply scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.86 V to 5.5 V - supports single-cell alkaline/NiMH (0.9 V nominal) and Li-ion (2.7–4.2 V) without startup failure. |
| Quiescent Current | 9.5 µA - enables multi-year operation in always-on sensor nodes powered by coin cells. |
| Shutdown Current | <650 nA - ensures negligible battery drain during system sleep or storage. |
| Switching Current Limit | 1.1 A (typ.) - delivers up to ~100 mA at 3.3 V output from 1.25 V input, sufficient for display backlight or RF transceiver bias. |
| Feedback Reference Voltage | 504 mV (±20 mV over temp) - sets output voltage via external resistor divider; enables precise 1.8–5.5 V programming. |
| Output Disconnect | True - internal DIS-FET fully isolates OUT from IN in shutdown, preventing reverse current and battery leakage. |
| Low-Battery Threshold | 0.4 V on LBI pin - configurable via resistor divider to detect end-of-life battery voltage before system brownout. |
Pinout & Package
MP3416GQH-Z is housed in an 8-pin QFN package (1.5 mm × 2.0 mm, 0.5 mm pitch) with exposed thermal pad for enhanced power dissipation (θJA = 110 °C/W). The compact footprint suits wearables, hearing aids, and handheld medical sensors.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (LBO) | Open-drain low-battery indicator output | Asserts low when LBI voltage drops below 0.4 V; requires external pull-up to indicate battery depletion to host MCU. |
| 2 (LBI) | Low-battery detection input | Monitors divided VIN voltage; must be biased >0.2 V to avoid false triggers; enables programmable battery cutoff. |
| 3 (EN) | Enable control input | Logic-high (>0.7 V) enables regulation; logic-low (<0.2 V) disables switching and activates output disconnect. |
| 4 (IN) | Main input supply | Accepts 0.86–5.5 V source; requires ≥10 µF ceramic bypass capacitor placed adjacent to pin for stability. |
| 5 (OUT) | Synchronous rectifier source node | Delivers regulated output; connects to ≥22 µF output capacitor; internal P-MOSFET eliminates need for external diode. |
| 6 (SW) | Switch node | Connects to inductor; carries high dv/dt switching waveform; trace must be short and wide to minimize EMI and losses. |
| 7 (GND) | Power and signal ground | Reference for all internal circuits; must be tied directly to thermal pad and external PCB ground plane for thermal and noise control. |
| 8 (FB) | Feedback input | Connects to resistor divider tap; senses output voltage; internal 504 mV reference enables accurate output programming. |
Key Features
| Feature | Design Value |
|---|---|
| Pulse-skip mode at light load | Maintains ≥80% efficiency at 100–200 µA output, extending battery life in intermittent-use devices. |
| Integrated synchronous rectifier | Eliminates external Schottky diode, reducing component count, board area, and forward-voltage drop losses. |
| Down-mode operation | Automatically transitions to pass-through mode when VIN > VOUT, avoiding reverse current and enabling seamless battery charging. |
| True output disconnect | Shuts off internal DIS-FET in shutdown, limiting output leakage to <0.65 µA - critical for backup power retention. |
| Adjustable low-battery detection | LBI/LBO interface allows user-defined battery cutoff voltage (e.g., 2.8 V for Li-ion), preventing deep discharge damage. |
Applications
| Medical Glucose Monitor | Digital Retail Shelf Label |
|---|---|
|
Use Scenario: Portable handheld glucose meter powered by single AAA battery, requiring stable 3.3 V rail for sensor ADC and BLE radio during brief measurement cycles. IC Role / Device Role / Timing Role: Step-up converter providing regulated 3.3 V from decaying 0.9–1.5 V battery; enables consistent analog front-end accuracy and wireless transmission timing. Use Value: 9.5 µA quiescent current extends battery life beyond 12 months; output disconnect prevents battery drain during idle periods between tests. |
Use Scenario: E-paper shelf label with bistable display updated wirelessly once per day, operating from CR2032 coin cell. IC Role / Device Role / Timing Role: Boost regulator generating 3.3 V for microcontroller and RF receiver; activated only during update window to minimize average current draw. Use Value: <650 nA shutdown current preserves CR2032 capacity for >5 years; pulse-skip mode ensures efficient burst operation during brief active periods. |
| Gaming Remote Controller | Wireless Hearing Aid Transmitter |
|
Use Scenario: Bluetooth gaming remote using two AA alkaline cells, needing clean 3.3 V supply for motion sensor, MCU, and BT radio during continuous gameplay. IC Role / Device Role / Timing Role: Primary power stage delivering regulated output despite battery voltage sag under pulsed load; manages dynamic load steps from radio transmit bursts. Use Value: Peak-current-mode control provides fast transient response to 100 mA radio pulses; down-mode operation avoids reverse current when USB charging is active. |
Use Scenario: Miniature assistive listening transmitter worn on clothing, powered by button cell, transmitting audio to hearing aids via proprietary 2.4 GHz link. IC Role / Device Role / Timing Role: Ultra-low-noise boost converter powering RF PA and codec; LBO signal alerts host MCU of battery depletion before audio dropout. Use Value: Adjustable low-battery detection (via LBI divider) triggers graceful shutdown at 2.4 V, preserving user experience and preventing sudden disconnect. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Texas Instruments TPS61291DRVR | Lower IQ (500 nA), but fixed 3.3 V/5 V outputs; no LBI/LBO or down-mode; 1.2 A switch current. | Lacks battery monitoring and VIN>VOUT pass-through - unsuitable for systems requiring adaptive battery management or dual-supply operation. | Select when ultra-low standby current is primary requirement and output voltage is fixed. |
| Analog Devices ADP5070ARMZ-R7 | Higher IQ (2.5 mA), dual-output capability, but no output disconnect or LBI; 400 mA switch current. | Cannot isolate output in shutdown or detect low battery - limits use in long-life, safety-critical battery systems. | Select only if dual-rail generation is required and battery monitoring is handled externally. |
Compared with TPS61291DRVR and ADP5070ARMZ-R7, MP3416GQH-Z uniquely combines sub-µA shutdown, true output disconnect, and integrated low-battery signaling - making it the only choice for compact, battery-optimized systems demanding both longevity and intelligent power supervision.
Availability
MP3416GQH-Z is available at Aetrix Electronics and suitable for medical glucose monitors, digital retail shelf labels, gaming remote controllers, and wireless hearing aid transmitters requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MP3416GQH-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 across Asia and North America and global manufacturing partnerships.
The MP3416 belongs to MPS's ultra-low-IQ boost converter product line, engineered specifically for energy-constrained, battery-powered portable electronics where extended runtime, small form factor, and intelligent power management are essential.
FAQ
What is the minimum input voltage required to start up the MP3416GQH-Z?
The MP3416GQH-Z requires a minimum start-up voltage of 1.25 V (typical) applied to the IN pin. Below 0.86 V, the device remains in undervoltage lockout and will not initiate switching, even if EN is asserted. This ensures reliable cold-start performance from partially discharged alkaline or NiMH cells.
Does the MP3416GQH-Z require external compensation components?
No external compensation components are required. The MP3416GQH-Z features internal loop compensation optimized for standard 1.5–3.3 µH inductors and 22 µF ceramic output capacitors. Stability is guaranteed across its full operating range without adding resistors or capacitors to the feedback network.
How does the low-battery detection function interact with enable control?
The LBI/LBO function is only active when EN is high. When EN is low (shutdown), the LBO pin enters high-impedance state and cannot assert low - ensuring battery monitoring does not interfere with system sleep states. LBI must remain biased above 0.2 V at all times to prevent false triggering.
Can the MP3416GQH-Z operate without an inductor?
No. The MP3416GQH-Z is a synchronous boost converter requiring an external inductor (recommended 1.5–3.3 µH) to store and transfer energy. Omitting the inductor prevents regulation and may damage the internal switches due to uncontrolled current flow during switching cycles.
What thermal protection behavior occurs during overload?
Under sustained overload, the MP3416GQH-Z first reduces output voltage and enters hiccup mode - cycling on/off to limit average power. If die temperature reaches 155 °C, thermal shutdown activates, halting all switching until temperature falls to 135 °C, then resuming normal operation.
Is the QFN-8 package (MP3416GQH-Z) pin-compatible with the TSOT23-8 variant (MP3416GJ-Z)?
No. While both variants share identical electrical functionality and pin functions, the QFN-8 (1.5 mm × 2.0 mm) and TSOT23-8 packages have different pinouts and footprints. The QFN-8 uses a top-side pin 1 marking (FK) and bottom-exposed thermal pad; TSOT23-8 has a different lead frame layout and no thermal pad.
What is the maximum recommended output capacitance for stability?
The MP3416GQH-Z is stable with output capacitances up to 100 µF using X5R/X7R ceramic capacitors. Larger values improve ripple suppression and transient response but do not compromise stability. Electrolytic or tantalum capacitors are not recommended due to ESR and aging effects that degrade regulation accuracy.
MP3416GQH-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 8-VFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- -
- Topology:
- Step-Up (Boost)
- Output Type:
- PS2/USB
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.86V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 1.1A
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-QFN (2x1.5)
MP3416GQH-Z FAQ
1.How can I place an order for MP3416GQH-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP3416GQH-Z 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 MP3416GQH-Z reliable?
The price and inventory of MP3416GQH-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP3416GQH-Z is usually 5 days.
3.What payment methods are accepted for MP3416GQH-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP3416GQH-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP3416GQH-Z?
MP3416GQH-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP3416GQH-Z 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 MP3416GQH-Z?
For technical support, including MP3416GQH-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP3416GQH-Z requirements.
6.How does Aetrix verify that MP3416GQH-Z is sourced from the original manufacturer or authorized distributors?
All MP3416GQH-Z 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 MP3416GQH-Z meets industry standards.
7.What is the process for return or replacement of MP3416GQH-Z?
All MP3416GQH-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP3416GQH-Z, 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 MP3416GQH-Z part is unused and in its original packaging.
Return procedure for MP3416GQH-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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