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Monolithic Power Systems Inc. MP2735DQG-LF-Z
- Part No.:
- MP2735DQG-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 10-VFQFN
- Datasheet:
-
MP2735DQG-LF-Z.pdf
- Description:
- IC SWITCH SPDT X 2 450MOHM 10QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,026
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Product details
Overview
MP2735DQG-LF-Z from Monolithic Power Systems is a low-voltage dual SPDT analog switch IC with 0.45Ω typical on-resistance at 2.7V, 1.65V–5.5V single-supply operation, and guaranteed break-before-make timing. It features two independent control pins (IN1/IN2), operates in QFN10 (1.4mm × 1.8mm), and targets battery-powered audio routing in portable media players and cellular handsets.
For engineers reviewing the MP2735DQG-LF-Z datasheet, MP2735DQG-LF-Z pinout, MP2735DQG-LF-Z application, or MP2735DQG-LF-Z equivalent, key selection criteria include on-resistance flatness (±0.15Ω), 29ns turn-on time at 2.7V, ±250mA continuous channel current, and 1.65V logic compatibility for direct Li-ion battery interfacing.
Technical Context
The MP2735DQG-LF-Z implements two independent CMOS SPDT switches with separate IN1/IN2 digital controls-no shared enable. Each switch routes bidirectional analog signals between COM and either NO or NC terminals, with conduction equally capable across rail-to-rail voltage ranges.
It guarantees break-before-make switching (10ns min) to prevent signal shorting during state transitions, supports 50MHz 3dB bandwidth, and maintains <±40nA off-leakage at +25°C-critical for precision signal integrity in low-power audio paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (rDS(on)) | 0.45Ω typ at 2.7V - enables minimal voltage drop and power loss in audio signal paths |
| Supply Voltage Range | 1.65V to 5.5V - supports direct one-cell Li-ion (2.7–4.2V) and 3.3V/5V system rails |
| Turn-On Time (tON) | 29ns typ at 2.7V - ensures fast channel switching for real-time audio/video routing |
| Off-Isolation (OIRR) | −70dB at 100kHz - suppresses crosstalk between inactive channels in multi-source systems |
| Channel Leakage (ICOM(off)) | ±100nA max (−40°C to +85°C) - preserves DC accuracy in sensor or bias networks |
| Logic Compatibility | 1.65V VIH min at V+ < 3.3V - interfaces directly with low-voltage MCUs without level shifters |
| Package | QFN10 (1.4mm × 1.8mm, 0.4mm pitch) - enables compact PCB layout in space-constrained handhelds |
Pinout & Package
MP2735DQG-LF-Z uses a thermally enhanced 10-pin QFN package (1.4mm × 1.8mm, 0.4mm pitch) with exposed thermal pad. Pin 1 is marked by a corner chamfer and located at top-left when viewed from top with marking side up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V+) | Positive supply input | Single 1.65–5.5V rail powers both analog switches and internal logic |
| 2 (NO1) | Normally open terminal, Switch 1 | Signal path connects to COM1 only when IN1 = high |
| 3 (COM1) | Common I/O, Switch 1 | Bidirectional analog node routed to NO1 or NC1 based on IN1 state |
| 4 (IN1) | Digital control input, Switch 1 | High-active logic selects NO1; low selects NC1 - no internal pull-up/down |
| 5 (NC1) | Normally closed terminal, Switch 1 | Signal path connects to COM1 when IN1 = low |
| 6 (GND) | Analog/digital ground reference | Common return for supply, logic, and analog signal paths - must be low-impedance |
| 7 (NC2) | Normally closed terminal, Switch 2 | Signal path connects to COM2 when IN2 = low |
| 8 (IN2) | Digital control input, Switch 2 | High-active logic selects NO2; low selects NC2 - independent of IN1 |
| 9 (COM2) | Common I/O, Switch 2 | Bidirectional analog node routed to NO2 or NC2 based on IN2 state |
| 10 (NO2) | Normally open terminal, Switch 2 | Signal path connects to COM2 only when IN2 = high |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance flatness | ±0.15Ω variation over full signal swing - minimizes THD in audio paths |
| Break-before-make guarantee | 10ns minimum interval - prevents momentary shorting between NC/NO during switching |
| ESD robustness | ±4000V HBM - withstands handling stress in assembly and field service |
| Small-footprint QFN | 1.4mm × 1.8mm area - saves >40% board space vs. SOIC-14 alternatives |
| Latch-up immunity | >300mA per JESD78 - ensures reliability under transient overvoltage conditions |
Applications
| Cellular Phone Audio Routing | Portable Media Player Headset Switching |
|---|---|
Use Scenario: Dynamic routing of mono/stereo audio between earpiece, speaker, and 3.5mm headset jack in smartphones. IC Role / Device Role / Timing Role: Dual SPDT analog switch managing bidirectional audio paths with sub-30ns switching and rail-to-rail conduction. Use Value: Enables seamless jack detection and audio path reconfiguration without audible pop/click due to guaranteed break-before-make and low rDS(on). | Use Scenario: Selecting between internal speaker and external headphones in flash-based MP3 players powered by single Li-ion cell. IC Role / Device Role / Timing Role: Low-voltage analog switch operating directly from 2.7–4.2V battery, controlled by MCU GPIOs. Use Value: Eliminates need for level shifters or external regulators, reducing BOM count and standby current to <1μA. |
| PCMCIA Card Signal Multiplexing | Handheld Test Instrument Channel Selection |
Use Scenario: Multiplexing analog sensor inputs or DAC outputs across multiple PCMCIA peripheral slots in industrial data loggers. IC Role / Device Role / Timing Role: Dual-channel analog switch providing isolated signal paths with −70dB off-isolation at 100kHz. Use Value: Prevents cross-talk between adjacent card slots while maintaining signal fidelity up to 50MHz bandwidth. | Use Scenario: Configuring input signal paths (voltage/current/source/sink) in battery-operated multimeters or LCR meters. IC Role / Device Role / Timing Role: Precision analog switch with ±100nA leakage and 0.45Ω rDS(on) enabling accurate low-level measurements. Use Value: Reduces measurement error from channel leakage and series resistance, critical for μA-range current sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2736DQG-LF-Z | Includes EN pin (active-low); IN1/IN2 jointly control both switches; no independent IN2 | Requires unified enable control and synchronized switching of both SPDTs | Select when system needs global enable/disable and coordinated channel switching |
| TMUX1574RTER | Higher rDS(on) (0.8Ω typ), 1.2V–5.5V supply, integrated ESD protection (±3kV HBM) | Supports lower-voltage logic (1.2V) but trades off on-resistance and speed (tON=40ns) | Select when 1.2V logic interface is required and higher on-resistance is acceptable |
Compared with MP2735DQG-LF-Z, MP2736DQG-LF-Z simplifies control architecture at the cost of independent channel flexibility, while TMUX1574RTER extends logic voltage range downward but increases signal path resistance and reduces switching speed-trade-offs requiring validation against specific audio fidelity and timing budgets.
Availability
MP2735DQG-LF-Z is available at Aetrix Electronics and suitable for cellular phone audio routing, portable media player headset switching, and handheld test instrument channel selection requiring stable component supply and RoHS-compliant packaging.
Supply support for MP2735DQG-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, founded in 1997 and headquartered in California.
The MP2735 product line delivers ultra-low on-resistance analog switches optimized for battery-powered portable electronics where size, power efficiency, and signal integrity are critical design constraints.
FAQ
Is MP2735DQG-LF-Z still recommended for new designs?
No. Monolithic Power Systems explicitly states "MP2735 NOT RECOMMENDED FOR NEW DESIGNS. REFER TO MP2736" in the official datasheet Rev. 1.0. The MP2736 adds an EN pin and modifies control logic, making it the designated upgrade path for new projects requiring long-term supply assurance.
What is the maximum continuous current rating per channel?
The MP2735DQG-LF-Z supports ±250mA continuous current through NO, NC, or COM terminals, as specified in Absolute Maximum Ratings. Exceeding this may cause thermal shutdown or permanent damage, especially at elevated ambient temperatures above 70°C.
Does MP2735DQG-LF-Z require external pull-up or pull-down resistors on IN1/IN2?
No. The IN1 and IN2 inputs have no internal pull resistors and require clean, actively driven logic levels (0V or V+) from the host controller. Floating control inputs may result in undefined switch states and increased leakage or shoot-through risk.
Can MP2735DQG-LF-Z operate with a 1.8V supply?
Yes. Its 1.65V–5.5V supply range includes 1.8V operation. At 1.8V, on-resistance increases (typical ~0.65Ω), and switching times lengthen (~45ns tON), but all functions remain fully specified and guaranteed per datasheet electrical characteristics.
What is the thermal pad connection requirement for QFN10 package?
The exposed thermal pad (Pin EP) must be soldered to a solid copper thermal land on the PCB, connected to GND for optimal thermal performance and EMI suppression. Omitting this connection degrades power dissipation capability and may cause junction temperature exceedance above 70°C ambient.
How is break-before-make timing verified in MP2735DQG-LF-Z?
Break-before-make is guaranteed by internal circuit design and validated via production test at TA = +25°C with tBBM ≥10ns (V+ = 3.6V, RL = 50Ω, CL = 35pF). This timing prevents simultaneous conduction between NC and NO paths during switching transitions.
What does the "-LF-Z" suffix indicate in MP2735DQG-LF-Z?
The "-LF" denotes RoHS-compliant lead-free finish, and "-Z" indicates tape-and-reel packaging (3,000 units per reel). Together, "-LF-Z" specifies the standard production version compliant with environmental regulations and optimized for automated SMT assembly.
MP2735DQG-LF-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 450mOhm
- Channel-to-Channel Matching (ΔRon):
- 10mOhm
- Voltage - Supply, Single (V+):
- 1.65V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 36ns, 30ns
- -3db Bandwidth:
- 50MHz
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 55pF
- Current - Leakage (IS(off)) (Max):
- 40nA
- Crosstalk:
- -70dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-QFN (1.4x1.8)
MP2735DQG-LF-Z FAQ
1.How can I place an order for MP2735DQG-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2735DQG-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 MP2735DQG-LF-Z reliable?
The price and inventory of MP2735DQG-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 MP2735DQG-LF-Z is usually 5 days.
3.What payment methods are accepted for MP2735DQG-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2735DQG-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2735DQG-LF-Z?
MP2735DQG-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2735DQG-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 MP2735DQG-LF-Z?
For technical support, including MP2735DQG-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2735DQG-LF-Z requirements.
6.How does Aetrix verify that MP2735DQG-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP2735DQG-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 MP2735DQG-LF-Z meets industry standards.
7.What is the process for return or replacement of MP2735DQG-LF-Z?
All MP2735DQG-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2735DQG-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 MP2735DQG-LF-Z part is unused and in its original packaging.
Return procedure for MP2735DQG-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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