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onsemi FAN5602MP5X
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- Part No.:
- FAN5602MP5X
- Manufacturer:
- onsemi
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
FAN5602MP5X.pdf
- Description:
- IC REG CHARGE PUMP 5V 200MA 8MLP
- Quantity:
- Payment:
- Shipping:
Inventory:2,568
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Product details
Overview
FAN5602MP5X from onsemi is a universal switched-capacitor DC/DC charge pump converter supporting both step-up and step-down operation with fixed 5.0 V regulated output, ±3% voltage accuracy, 92% peak efficiency, and 1 MHz switching frequency. It delivers up to 100 mA at VIN = 3.6 V and operates across 2.7 V–5.5 V input range for portable RF communication equipment and low-power processor core supplies.
For engineers reviewing the FAN5602MP5X datasheet, pinout, applications, or equivalent options, key selection criteria include adaptive fractional switching topology (1:3, 1:2, 2:3, 1:1, 3:2, 2:1, 3:1), resistance-modulated loop control for low noise, automatic pulse-skipping mode below 10 mA, soft-start, and thermal/short-circuit protection.
Technical Context
The FAN5602MP5X implements an adaptive switch-array architecture that dynamically selects among seven fractional topologies based on real-time VIN/VOUT ratio to maximize efficiency-e.g., 1:1 LDO-like mode when VIN ≥ VOUT, 2:3 or 1:2 boost modes when VOUT > VIN, and 3:2 or 2:1 buck modes when VIN > VOUT. Internal logic reconfigures the switch matrix without external intervention.
Regulation uses a linear feedback loop modulating power transistor on-resistance rather than PWM duty cycle, minimizing ESR-related current spikes and enabling microvolt-level ripple in 1:1 mode. At light load (<10 mA), it transitions automatically to PFM mode-disabling the oscillator and error amplifier while using comparator-based threshold control-to reduce quiescent current to <1 µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V with ±3% accuracy over −40°C to +85°C and 0–100 mA load - ensures stable core supply for low-power processors without external feedback resistors. |
| Input Voltage Range | 2.7 V to 5.5 V - supports single-cell Li-ion (3.2–4.2 V), NiMH, or regulated 3.3 V/5 V rails without input pre-regulation. |
| Peak Efficiency | 92% at VIN = 1.1 × VNOM (5.5 V) and ILOAD = 30 mA - enables extended battery life in handheld devices by minimizing power loss during moderate loads. |
| Switching Frequency | 1 MHz typical (0.7–1.3 MHz range) - allows use of small 1 µF ceramic bucket capacitors and reduces EMI compared to sub-MHz charge pumps. |
| Quiescent Current | 170–300 µA at full load, <1 µA in shutdown - critical for always-on subsystems where standby power must be minimized. |
| Protection Features | Thermal shutdown at 145°C (15°C hysteresis) and short-circuit current limiting to 200 mA - prevents damage during fault conditions without external circuitry. |
| Soft-Start Time | ~500 µs - limits inrush current during power-on to protect upstream battery or regulator from excessive stress. |
Pinout & Package
Package: WDFN8 3×3 mm, 0.65 mm pitch, exposed thermal pad (Case 511CD), Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply connection (2.7–5.5 V); requires local 10 µF ceramic decoupling capacitor. |
| 2 | C2+ | Positive terminal of second flying capacitor (C2); forms part of charge-transfer network in all switching modes. |
| 3 | C2− | Negative terminal of second flying capacitor (C2); referenced to GND or MID node depending on mode. |
| 4 | GND | Power and signal ground reference; must be connected to low-impedance PCB plane under exposed pad. |
| 5 | C1− | Negative terminal of first flying capacitor (C1); used with C1+ and C2± to configure fractional ratios. |
| 6 | VOUT | Regulated 5.0 V output; bypassed with 10 µF low-ESR ceramic capacitor to maintain stability and ripple performance. |
| 7 | C1+ | Positive terminal of first flying capacitor (C1); essential for all charge-pump phase transitions. |
| 8 | ENABLE | Logic-controlled enable input (VIH ≥ 1.5 V, VIL ≤ 0.5 V); pulls supply current to <1 µA when low - no floating allowed. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Fractional Switching | Seven built-in configurations (1:3, 1:2, 2:3, 1:1, 3:2, 2:1, 3:1) automatically selected based on VIN/VOUT ratio - eliminates manual topology selection and optimizes efficiency across wide input range. |
| Resistance-Modulated Loop Control | Linear regulation via on-resistance modulation instead of PWM - reduces switching noise and ESR-induced current spikes, enabling clean power for sensitive analog/RF circuits. |
| Hybrid Operation Mode | Constant-frequency mode above 10 mA load; automatic transition to PFM mode below 10 mA - extends battery runtime without sacrificing transient response at medium loads. |
| No Inductor Required | Uses only three external ceramic capacitors (two 1 µF bucket, one 10 µF output) - simplifies layout, reduces BOM cost, and avoids magnetic EMI concerns. |
| Integrated Protection | Short-circuit current limit (200 mA), thermal shutdown (145°C), UVLO (1.5–2.2 V), and soft-start - removes need for discrete fault-management components. |
Applications
| Cell Phones | Handheld Computers |
|---|---|
|
Use Scenario: Powering baseband processor core voltage (VCC_CORE) from a single Li-ion cell (3.2–4.2 V). IC Role / Device Role / Timing Role: Universal charge pump regulating 5.0 V output while adapting between 1:1 LDO-like and 2:3 boost modes as battery discharges. Use Value: Maintains stable 5.0 V supply down to 2.7 V input, extending usable battery capacity beyond what fixed-ratio pumps allow. |
Use Scenario: Supplying DSP core voltage in ruggedized industrial PDAs operating across temperature extremes. IC Role / Device Role / Timing Role: Low-noise, high-efficiency DC/DC converter delivering 5.0 V with ±3% accuracy and thermal shutdown at 145°C. Use Value: Eliminates need for inductor-based solutions while meeting tight voltage tolerance and reliability requirements in wide-temp environments. |
| Portable RF Communication Equipment | Low-Voltage DC Bus |
|
Use Scenario: Generating clean 5.0 V rail for RF front-end ICs (e.g., PA drivers, LNAs) in handheld radios. IC Role / Device Role / Timing Role: Charge pump with resistance-modulated loop control minimizing switching noise injection into sensitive RF paths. Use Value: Achieves <10 mVpp output ripple at 200 mA load, reducing spurious emissions and improving receiver sensitivity. |
Use Scenario: Stepping down 5 V system bus to regulated 5.0 V for legacy peripherals requiring precise voltage alignment. IC Role / Device Role / Timing Role: 1:1 pass-mode operation functioning as ultra-low-noise LDO when VIN ≈ VOUT, with oscillator disabled. Use Value: Delivers microvolt-level ripple and zero switching noise - ideal for noise-sensitive analog or timing circuits sharing same bus. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar universal charge pump applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8814EWE+T | Fixed 5.0 V output, 125 mA max, 90% peak efficiency, 1.2 MHz switching, but only supports step-up (no 1:1 or buck modes). | Limited to boost-only applications; cannot operate in LDO-like 1:1 mode for low-noise scenarios. | Choose MAX8814EWE+T only if input is always <5.0 V and noise immunity is secondary to higher current capability. |
| TLC7660CP | CMOS voltage converter with ±10 V output capability, no regulation, no adaptive topology, 10 mA max, no protection features. | Unregulated inverting charge pump - unsuitable for precision 5.0 V supply; requires external regulation and protection. | Use TLC7660CP only for simple inverting functions where regulation, efficiency, and safety are not required. |
Compared with MAX8814EWE+T and TLC7660CP, the FAN5602MP5X uniquely combines adaptive multi-ratio switching, integrated protection, and LDO-equivalent low-noise 1:1 operation - making it the only option capable of maintaining regulated 5.0 V across full battery discharge while minimizing EMI in compact portable designs.
Availability
FAN5602MP5X is available at Aetrix Electronics and suitable for cell phones, handheld computers, and portable RF communication equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for FAN5602MP5X 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
onsemi (formerly ON Semiconductor) is a global semiconductor manufacturer specializing in energy-efficient power management, analog, sensor, and logic solutions for automotive, industrial, and portable electronics.
The FAN5602MP5X belongs to onsemi's universal charge pump product line, designed specifically to replace inductor-based DC/DC converters in space-constrained, battery-powered applications where low EMI and wide-input flexibility are critical.
FAQ
What is the maximum continuous output current of the FAN5602MP5X?
The FAN5602MP5X delivers up to 100 mA continuous output current when VIN = 3.6 V and ambient temperature is within −40°C to +85°C. At lower input voltages (e.g., VIN = 2.7 V), output current capability decreases due to reduced headroom; Figure 9 in the datasheet shows load current vs. input voltage curves confirming this behavior for the FAN5602MP5X.
Does the FAN5602MP5X require external feedback resistors to set its output voltage?
No, the FAN5602MP5X has an internally trimmed 5.0 V reference with ±3% accuracy across temperature and load - no external feedback resistors are needed. This fixed-output architecture simplifies design and improves reliability compared to adjustable charge pumps requiring precision resistor networks.
How does the FAN5602MP5X handle short-circuit conditions?
When VOUT drops below 150 mV, the FAN5602MP5X enters short-circuit protection mode: all main power transistors turn off, and a dedicated small-current transistor connects VIN to VOUT to limit fault current to approximately 200 mA. Once the short is removed, the device initiates soft-start before resuming normal regulation - a behavior confirmed in the Functional Description section for the FAN5602MP5X.
Can the FAN5602MP5X operate with input voltage equal to its 5.0 V output?
Yes - the FAN5602MP5X supports 1:1 pass-through mode when VIN ≥ VOUT. In this configuration, the internal oscillator disables, power transistors act as low-dropout pass elements, and output ripple falls to microvolt levels. This LDO-like behavior is explicitly documented for the FAN5602MP5X in the Functional Description and Figure 21.
What capacitor values are required for basic operation of the FAN5602MP5X?
The FAN5602MP5X requires two 1 µF ceramic flying capacitors (C1 and C2) and one 10 µF ceramic output capacitor (COUT), all with low ESR. These values are specified in the Application Diagram (Figure 1) and Recommended Operating Conditions table for the FAN5602MP5X - no additional input or bypass capacitors are mandatory beyond these three.
FAN5602MP5X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 200mA
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MLP (3x3)
FAN5602MP5X FAQ
1.How can I place an order for FAN5602MP5X through Aetrix?
Please submit a Request for Quotation (RFQ) for FAN5602MP5X 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 FAN5602MP5X reliable?
The price and inventory of FAN5602MP5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FAN5602MP5X is usually 5 days.
3.What payment methods are accepted for FAN5602MP5X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FAN5602MP5X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FAN5602MP5X?
FAN5602MP5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FAN5602MP5X 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 FAN5602MP5X?
For technical support, including FAN5602MP5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FAN5602MP5X requirements.
6.How does Aetrix verify that FAN5602MP5X is sourced from the original manufacturer or authorized distributors?
All FAN5602MP5X 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 FAN5602MP5X meets industry standards.
7.What is the process for return or replacement of FAN5602MP5X?
All FAN5602MP5X units undergo pre-shipment inspection (PSI). If there is an issue with FAN5602MP5X, 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 FAN5602MP5X part is unused and in its original packaging.
Return procedure for FAN5602MP5X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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