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Monolithic Power Systems Inc. MP3216DJ-LF-Z
- Part No.:
- MP3216DJ-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
MP3216DJ-LF-Z.pdf
- Description:
- IC REG BOOST ADJ 750MA TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,697
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Product details
Overview
MP3216DJ-LF-Z from Monolithic Power Systems is a 36V, 1.3MHz step-up DC-DC converter with integrated 0.75A/0.6Ω power MOSFET and output disconnect switch, designed for portable boost applications requiring up to 33V output from 5V input. It features cycle-by-cycle current limiting, 42V over-voltage shutdown, and thermal protection in a TSOT23-6 package.
For engineers reviewing the MP3216DJ-LF-Z datasheet, MP3216DJ-LF-Z pinout, MP3216DJ-LF-Z application, or MP3216DJ-LF-Z equivalent, key selection criteria include its 1.3MHz fixed-frequency current-mode control, 0.75A switch current limit, output disconnect capability, and TSOT23-6 pin mapping for compact PCB layout.
Technical Context
The MP3216DJ-LF-Z implements a constant-frequency peak-current-mode boost architecture with a 1.24V internal reference and external resistor divider feedback. Its control loop includes slope compensation to prevent subharmonic oscillation above 50% duty cycle.
It integrates two active switches: a main 0.6Ω N-channel power MOSFET (SW pin) and a dedicated 300mΩ N-channel output disconnect switch (L pin), enabling full load isolation during shutdown - a feature absent in the TSOT23-5 variant (MP3216GJE).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 6V - supports single-cell Li-ion or USB-powered systems |
| Output Voltage Range | Up to 36V - enables high-voltage bias rails for displays, sensors, or RF modules |
| Switching Frequency | 1.3MHz (typ) - allows use of small 2.2–33µH inductors and ceramic capacitors |
| Peak Switch Current | 0.75A - sets maximum deliverable output power at given VIN/VOUT ratio |
| Feedback Reference | 1.24V ±4% - determines output voltage accuracy via external resistor divider |
| OVP Threshold | 42V - latches off until power recycle, protecting downstream components |
| Output Disconnect RON | 300mΩ - isolates load from input during shutdown, eliminating standby leakage |
Pinout & Package
MP3216DJ-LF-Z is housed in a 6-pin TSOT23-6 package (JEDEC MO-193 AA), measuring 2.9mm × 1.6mm × 0.95mm, with exposed pad not electrically connected. Pin 1 is SW (switch node), Pin 2 is GND, Pin 3 is FB (feedback), Pin 4 is EN (enable), Pin 5 is IN (input supply), and Pin 6 is L (inductor connection / output disconnect switch source).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SW) | Drain of main power MOSFET | Connects to inductor and Schottky diode anode; carries high di/dt switching current |
| 2 (GND) | Power and signal ground reference | Must be low-impedance return path for SW, IN, and FB; ties to thermal pad plane |
| 3 (FB) | Inverting input of error amplifier | Senses output via resistor divider; 1.24V reference sets regulation point |
| 4 (EN) | Active-high enable control | Turns on at >2V, off at <0.8V; internal pull-down ensures default-off state |
| 5 (IN) | Source of output disconnect MOSFET | Input supply entry point; bypassed locally with ≥4.7µF ceramic capacitor |
| 6 (L) | Source/body of output disconnect MOSFET | Connects to inductor; enables full load isolation when EN = low |
Key Features
| Feature | Design Value |
|---|---|
| Integrated output disconnect switch | 300mΩ N-MOSFET (Pin 6) enables true zero-load current in shutdown mode |
| Output short-circuit protection | Limits inductor current to 210mA during short, preventing diode/IC damage |
| Fixed 1.3MHz switching frequency | Enables consistent EMI filtering and compact passive component selection |
| Cycle-by-cycle current limiting | Prevents MOSFET overstress under transient overload or startup conditions |
| 42V over-voltage shutdown | Hysteresis-free latch-off prevents uncontrolled voltage runaway due to FB divider fault |
Applications
| Portable Medical Sensors | Digital Still Cameras |
|---|---|
Use Scenario: Boosting 3.3V battery rail to 24–33V for CCD/CMOS sensor bias and flash LED drivers. IC Role / Device Role / Timing Role: Primary voltage booster with output disconnect to eliminate standby drain during sleep mode. Use Value: Enables >90% efficiency at 10mA load while reducing system quiescent current to <10µA in shutdown. | Use Scenario: Generating 30V rail from 5V USB input to power autofocus actuators and image sensor bias circuits. IC Role / Device Role / Timing Role: High-frequency boost regulator with fast transient response for burst-mode actuator drive. Use Value: 1.3MHz operation minimizes inductor size (<3mm footprint) and avoids audible noise in camera housing. |
| Handheld Barcode Scanners | Industrial Handheld Terminals |
Use Scenario: Supplying 28V to laser diode driver ICs from a 3.7V Li-ion cell with dynamic load steps. IC Role / Device Role / Timing Role: Current-mode boost controller with cycle-by-cycle protection against laser diode shorts. Use Value: 0.75A switch current and 42V OVP prevent catastrophic failure during accidental laser output short. | Use Scenario: Providing isolated 33V logic supply for RS-232/RS-485 transceivers in ruggedized handheld terminals. IC Role / Device Role / Timing Role: Output-disconnect-enabled boost converter ensuring clean power sequencing and zero backfeed. Use Value: Pin 6 (L) disconnect eliminates reverse current into battery during hot-swap or firmware reset events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP3216GJE-LF-Z | TSOT23-5 package; no L pin or output disconnect switch; same 0.75A switch and 1.3MHz frequency | Lacks load isolation capability; unsuitable where zero-quiescent-current shutdown is required | Select when board space is constrained and output disconnect is unnecessary |
| TPS61088RHLR | TI part; 2.7–12V input; 12.6V max output; 10A switch; no output disconnect; QFN-16 package | Higher current, lower output voltage range; lacks OVP latch and disconnect function | Choose only for high-current, low-VOUT boost where MP3216's 36V capability is unused |
Compared with MP3216GJE-LF-Z, MP3216DJ-LF-Z adds critical output isolation via Pin 6; versus TPS61088RHLR, it delivers higher output voltage with tighter OVP protection and smaller footprint, but at lower current rating.
Availability
MP3216DJ-LF-Z is available at Aetrix Electronics and suitable for portable medical sensors, digital still cameras, handheld barcode scanners, and industrial handheld terminals requiring stable component supply across extended temperature ranges.
Supply support for MP3216DJ-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 mixed-signal ICs for power management, motion control, and automotive applications.
The MP3216 product line targets compact, high-voltage boost conversion in space-constrained portable electronics, emphasizing integration of protection features and output isolation without external components.
FAQ
What is the purpose of Pin 6 (L) on the MP3216DJ-LF-Z?
Pin 6 (L) is the source terminal of an integrated N-channel MOSFET used exclusively for output disconnection. When EN is low, this switch opens, fully isolating the load from the input supply and eliminating standby current. This functionality is absent in the TSOT23-5 variant (MP3216GJE).
Does MP3216DJ-LF-Z support adjustable soft-start?
No - the MP3216DJ-LF-Z does not include programmable soft-start. Startup is controlled by the EN pin threshold and internal current-limit behavior. Output voltage rise time depends on feedback divider values and output capacitance, typically reaching regulation within 100–200µs after EN assertion.
Can MP3216DJ-LF-Z operate with input voltage below 2.5V?
No - the absolute minimum operating input voltage is 2.5V per datasheet specifications. Below this, UVLO prevents switching. The under-voltage lockout activates at 2.25V (rising) with 92mV hysteresis, ensuring reliable start-up only within the validated 2.5–6V range.
How does the output short-circuit protection behave?
During output short, the MP3216DJ-LF-Z halts switching and limits inductor current to 210mA using the L-pin disconnect switch. This prevents damage to the external Schottky diode and internal MOSFET. Normal operation resumes automatically once the short is removed and EN remains asserted.
Is thermal shutdown reversible without power cycling?
Yes - thermal shutdown is auto-recovering. When junction temperature exceeds 150°C, the device stops switching and cools. Once die temperature falls below ~140°C (typical hysteresis), regulation resumes without requiring EN toggling or input power recycle.
What is the recommended input capacitor configuration?
A minimum 4.7µF X5R/X7R ceramic capacitor must be placed directly between IN and GND, adjacent to Pin 5. Additionally, a 0.1µF ceramic capacitor should be placed near Pin 6 (L) to suppress high-frequency ripple. Both must use low-ESR construction and shortest possible traces.
MP3216DJ-LF-Z 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:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- 36V (Switch)
- Current - Output:
- 750mA (Switch)
- Frequency - Switching:
- 1.3MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
MP3216DJ-LF-Z FAQ
1.How can I place an order for MP3216DJ-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP3216DJ-LF-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 MP3216DJ-LF-Z reliable?
The price and inventory of MP3216DJ-LF-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP3216DJ-LF-Z is usually 5 days.
3.What payment methods are accepted for MP3216DJ-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP3216DJ-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP3216DJ-LF-Z?
MP3216DJ-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP3216DJ-LF-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 MP3216DJ-LF-Z?
For technical support, including MP3216DJ-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP3216DJ-LF-Z requirements.
6.How does Aetrix verify that MP3216DJ-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP3216DJ-LF-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 MP3216DJ-LF-Z meets industry standards.
7.What is the process for return or replacement of MP3216DJ-LF-Z?
All MP3216DJ-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP3216DJ-LF-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 MP3216DJ-LF-Z part is unused and in its original packaging.
Return procedure for MP3216DJ-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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