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International Test Instruments Corporation IR3710MTRPBF
- Part No.:
- IR3710MTRPBF
- Manufacturer:
- International Test Instruments Corporation
- Category:
- DC DC Switching Controllers
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
IR3710MTRPBF.pdf
- Description:
- WIDE INPUT AND OUTPUT, SYNCHRONO
- Quantity:
- Payment:
- Shipping:
Inventory:1,802
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Product details
Overview
IR3710MTRPBF from Infineon Technologies is a single-phase synchronous buck PWM controller with constant on-time control, 3V–28V input range, 0.5V–12V output range, 0.5V ±1% precision reference, and integrated charge pump for high-efficiency gate drive. It operates in DCM/CCM modes, supports pre-bias startup, and delivers power-good signaling for battery-powered portable electronics.
For engineers reviewing the IR3710MTRPBF datasheet, IR3710MTRPBF pinout, IR3710MTRPBF application, or IR3710MTRPBF equivalent, key selection criteria include light-load efficiency optimization via diode emulation, programmable switching frequency (100–1000 kHz), gate drive charge pump enablement, and voltage monitoring on the EN pin for system-level fault detection.
Technical Context
The IR3710 implements constant on-time (COT) control with feed-forward compensation via the FF pin, enabling fast transient response without external loop compensation. Its zero-current detection circuitry enables seamless transition between discontinuous (DCM) and forced continuous conduction mode (FCCM), triggered by the FCCM pin.
Internal gate drivers deliver 1.5–3 Ω UGATE source resistance and 0.4–1 Ω LGATE sink resistance, supporting MOSFETs with up to 40 nC gate charge. The charge pump output (CPO) regulates PVCC to ~7.0 V, decoupling high-side drive from input rail variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 28 V - supports wide-input battery systems including 3S Li-ion (12.6 V) and 6S (25.2 V) configurations |
| Output Voltage Range | 0.5 V to 12 V - adjustable via FB resistor divider; 0.5 V ±1% reference enables sub-1 V core supply regulation |
| Switching Frequency | Programmable 100–1000 kHz via FF pin resistor - higher frequencies reduce output filter size; lower frequencies improve light-load efficiency |
| Gate Drive Supply | PVCC = 7.0 V typical - regulated by internal charge pump (CPO pin), eliminating need for external LDO for high-side driver |
| Protection Features | UV/OV shutdown on FB, overcurrent via ISET, pre-bias startup, and PGOOD with 0.6 V delay threshold - ensures safe power sequencing in embedded systems |
| Package | 16-pin 3×3 mm MLPQ - thermally enhanced lead-free QFN with θJA = 49 °C/W, suitable for space-constrained portable PCB layouts |
Pinout & Package
IR3710MTRPBF uses a 16-pin, 3 mm × 3 mm MLPQ (Micro Leadframe Package – Quad) with exposed thermal pad (PGND-connected). Pin 1 is BOOT; pin 16 is UGATE. The package complies with RoHS and MSL Level 2 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT | Bootstrap supply node | Connects external bootstrap capacitor between BOOT and PHASE to generate floating gate drive voltage for UGATE |
| FF | Feed-forward input | Resistor-to-VIN sets on-time and switching frequency; enables input-voltage adaptive regulation |
| EN | Enable with voltage monitor | Logic-high (>1.22 V) enables operation; monitors VIN-derived voltage for brown-in/out detection |
| ISET | Current limit programming | Resistor-to-PHASE sets peak inductor current limit; 20 μA typical output current defines trip point |
| PGOOD | Power-good open-drain output | Pulls low when VOUT deviates >±10% from target; requires external 3.3 V pull-up for system reset signaling |
| FB | Voltage feedback input | Monitors resistive divider output; compares to 0.5 V reference to regulate VOUT with ±1% accuracy |
| SS | Soft-start timing | Capacitor-to-GND sets output voltage ramp rate; prevents inrush current during startup |
| CPO | Charge pump output | Supplies regulated ~7 V to PVCC; disables when FCCM = HIGH and VCP < 6.8 V |
Key Features
| Feature | Design Value |
|---|---|
| Constant On-Time Control | Enables ultra-fast load transient response without external compensation components - reduces BOM count and layout sensitivity |
| Diode Emulation Mode | Automatically enters DCM at light loads to eliminate reverse inductor current, improving efficiency below 100 mA |
| Integrated Charge Pump | Generates stable 7 V PVCC from input rail - eliminates external bias supply and supports high-side MOSFETs with VGS ≥ 6 V |
| Pre-bias Startup | Allows safe startup into pre-charged output capacitors - prevents reverse current flow and protects downstream loads |
| Programmable FCCM | FCCM pin forces CCM operation above light load - suppresses audible noise and stabilizes regulation under dynamic loads |
Applications
| Smartphone Application Processor Core Supply | Tablet SoC DVFS Rail |
|---|---|
Use Scenario: Regulating 0.6–0.9 V core voltage for ARM Cortex-A series processors under dynamic DVFS conditions. IC Role / Device Role / Timing Role: Primary buck controller managing phase-node switching, gate drive timing, and real-time output voltage adjustment via FB loop. Use Value: Constant on-time control achieves <5 µs transient recovery; 0.5 V ±1% reference ensures compliance with tight core voltage tolerances (±30 mV). | Use Scenario: Powering GPU and memory interface rails in 7–10 inch tablets with 12.6 V battery input. IC Role / Device Role / Timing Role: Synchronous buck modulator delivering up to 24 A with FCCM-enabled CCM stability during burst-mode graphics workloads. Use Value: Charge pump (CPO) sustains 7 V PVCC across full VIN range, enabling reliable 30 ns UGATE/LGATE dead-time control and <50 ns propagation delay. |
| Industrial Handheld Terminal PMIC Sub-Block | Wearable Health Monitor Main DC-DC Stage |
Use Scenario: Generating isolated 3.3 V and 5 V rails from 18–24 V industrial battery packs in ruggedized handheld scanners. IC Role / Device Role / Timing Role: High-input buck controller interfacing with external PMIC sequencer via EN and PGOOD signals for coordinated power-up/down. Use Value: EN pin voltage monitoring detects input brown-out before UVLO triggers, enabling graceful firmware shutdown; PGOOD delay threshold (0.6 V) aligns with MCU reset IC timing. | Use Scenario: Converting 3.7 V single-cell Li-ion to 1.8 V sensor and 3.0 V BLE radio supply in compact wearable patches. IC Role / Device Role / Timing Role: Ultra-low quiescent current buck controller operating down to 30 mA load while maintaining <±1% output regulation. Use Value: Diode emulation extends battery life by 18% at 10 mA load vs fixed-frequency controllers; SS capacitor enables <100 ms soft-start to avoid sensor initialization faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2315DJ-LF-Z | Fixed 500 kHz frequency; no charge pump; 0.8 V reference; 4.5–28 V input | Lacks pre-bias startup and EN voltage monitoring; simpler layout but less robust for battery brown-out scenarios | Select when cost-sensitive designs accept reduced light-load efficiency and omit PGOOD sequencing |
| TPS54332DR | Voltage-mode control; external compensation; 0.8 V reference; 3.5–28 V input; 3.5 A integrated FETs | Includes power MOSFETs; no charge pump; requires loop compensation network; higher quiescent current | Select when board space allows discrete compensation and integrated FETs simplify bill-of-materials |
Compared with MP2315DJ-LF-Z and TPS54332DR, IR3710MTRPBF uniquely combines constant on-time control, charge-pump gate drive, and 0.5 V precision reference - making it optimal for high-efficiency, low-voltage core supplies where transient response and battery longevity are critical.
Availability
IR3710MTRPBF is available at Aetrix Electronics and suitable for smartphone processor core supplies, tablet SoC DVFS rails, industrial handheld terminal PMIC sub-blocks, and wearable health monitor main DC-DC stages requiring stable component supply and long-term lifecycle support.
Supply support for IR3710MTRPBF 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.
The IR37xx family targets high-efficiency, wide-input synchronous buck regulation for portable and battery-powered systems - emphasizing light-load performance, compact footprint, and robust protection for mission-critical power rails.
FAQ
What is the minimum output voltage achievable with IR3710MTRPBF?
The IR3710MTRPBF supports an output voltage range of 0.5 V to 12 V, with a precision 0.5 V ±1% internal reference. This allows stable regulation down to exactly 0.5 V using the FB pin and external resistor divider - verified in production test conditions across -10°C to +125°C junction temperature.
Does IR3710MTRPBF require external compensation components?
No. The IR3710MTRPBF uses constant on-time control architecture with feed-forward (FF pin) and zero-current detection, eliminating the need for external compensation networks such as type-II or type-III error amplifiers - confirmed in the functional block diagram and application circuits on pages 6 and 18 of the official datasheet.
How does the charge pump (CPO) function in IR3710MTRPBF?
The CPO pin delivers a regulated ~7.0 V output to PVCC, generated from VIN via an internal charge pump. It remains active in DCM and disables when FCCM = HIGH and CPO voltage falls below 6.8 V - enabling efficient high-side gate drive across the full 3–28 V input range without external bias supplies.
Can IR3710MTRPBF start up into a pre-biased output?
Yes. The IR3710MTRPBF supports pre-bias startup, allowing safe operation when the output capacitor is already charged. This is implemented via internal circuitry that disables gate drive until the FB voltage rises above the UV threshold, preventing reverse current flow - demonstrated in Figure 8 of the datasheet under 30 mA pre-bias conditions.
IR3710MTRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- International Test Instruments Corporation
- Series:
- -
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Output Type:
- Transistor Driver
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Number of Outputs:
- 1
- Output Phases:
- 1
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 28V
- Frequency - Switching:
- Up to 1MHz
- Duty Cycle (Max):
- -
- Synchronous Rectifier:
- Yes
- Clock Sync:
- No
- Serial Interfaces:
- -
- Control Features:
- Current Limit, Enable, Power Good, Soft Start
- Operating Temperature:
- 0°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-MLPQ (3x3)
IR3710MTRPBF FAQ
1.How can I place an order for IR3710MTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR3710MTRPBF 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 IR3710MTRPBF reliable?
The price and inventory of IR3710MTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR3710MTRPBF is usually 5 days.
3.What payment methods are accepted for IR3710MTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR3710MTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR3710MTRPBF?
IR3710MTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR3710MTRPBF 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 IR3710MTRPBF?
For technical support, including IR3710MTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR3710MTRPBF requirements.
6.How does Aetrix verify that IR3710MTRPBF is sourced from the original manufacturer or authorized distributors?
All IR3710MTRPBF 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 IR3710MTRPBF meets industry standards.
7.What is the process for return or replacement of IR3710MTRPBF?
All IR3710MTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR3710MTRPBF, 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 IR3710MTRPBF part is unused and in its original packaging.
Return procedure for IR3710MTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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