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Diodes Incorporated PAM2306DYPAA
- Part No.:
- PAM2306DYPAA
- Manufacturer:
- Diodes Incorporated
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
PAM2306DYPAA.pdf
- Description:
- IC REG BUCK ADJ 1A DL 12WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:44,076
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Product details
Overview
PAM2306DYPAA from Diodes Incorporated is a dual-channel, current-mode PWM step-down DC-DC converter with synchronous rectification, 1.5 MHz switching frequency, 2.5–5.5 V input range, and up to 1 A per channel output capability-designed for portable electronics requiring high efficiency (up to 96%) and ultra-low quiescent current (40 µA per channel) in battery-sensitive applications.
For engineers reviewing the PAM2306DYPAA datasheet, PAM2306DYPAA pinout, PAM2306DYPAA application, or PAM2306DYPAA equivalent, key selection criteria include dual independent enable control (EN1/EN2), adjustable output voltage via external resistive feedback (0.6 V reference), thermal shutdown (150°C), and WDFN3x3-12L package compatibility with compact PCB layouts.
Technical Context
The PAM2306DYPAA integrates two independent buck regulators sharing no internal power path-each with dedicated VIN, LX, FB, and EN pins, enabling asynchronous start-up and independent voltage scaling. Its current-mode control ensures fast transient response and stable operation across 2.5–5.5 V input while maintaining ±3% output voltage accuracy over load and line variations.
It employs pulse-skipping modulation (PSM) under light load to reduce quiescent current to 40 µA per channel, and transitions seamlessly to fixed-frequency PWM at higher loads. Internal P/N-channel MOSFETs with RDS(ON) ≤ 0.45 Ω (P-ch) and ≤ 0.50 Ω (N-ch) support high-efficiency conversion without external switches.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 5.5 V - supports single Li+/Li-Po cell, USB, or multi-cell alkaline/NiMH sources. |
| Output Current per Channel | Up to 1 A - sufficient for core logic rails (e.g., 1.2 V, 1.8 V, 3.3 V) in portable SoC subsystems. |
| Switching Frequency | 1.5 MHz (typ) - enables use of small 2.2–4.7 µH inductors and ceramic capacitors for space-constrained designs. |
| Feedback Reference Voltage | 0.6 V (typ) - sets output voltage via external resistor divider (VO = 0.6 × (1 + R1/R2)). |
| Quiescent Current | 40 µA per channel (typ) - extends battery runtime in standby/sleep modes of handheld devices. |
| Shutdown Current | < 0.1 µA per channel - isolates input from output during deep sleep, preventing battery drain. |
| Thermal Shutdown Threshold | 150°C (with 30°C hysteresis) - protects IC during sustained overload or poor PCB thermal design. |
Pinout & Package
The PAM2306DYPAA is housed in a thermally enhanced 12-pin WDFN3x3-12L package (3.0 mm × 3.0 mm, 0.75 mm height) with an exposed thermal pad (pins 3 & 9) that must be soldered to a large GND copper area for optimal heat dissipation (θJA = 60°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN2) | Power Input – Channel 2 | Independent input supply rail for second buck regulator; accepts 2.5–5.5 V. |
| 2 (LX2) | Switch Node – Channel 2 | Connection point for external inductor and output capacitor; carries high-frequency switching current. |
| 4 (FB1) | Feedback Input – Channel 1 | Monitors regulated output voltage via resistor divider; referenced to 0.6 V internal bandgap. |
| 6 (EN1) | Enable Input – Channel 1 | Active-high digital control (VEH ≥ 1.5 V); allows independent sequencing or power gating of Channel 1. |
| 7 (VIN1) | Power Input – Channel 1 | Independent input supply rail for first buck regulator; electrically isolated from VIN2. |
| 8 (LX1) | Switch Node – Channel 1 | Connection point for external inductor and output capacitor of Channel 1; not shared with LX2. |
| 10 (FB2) | Feedback Input – Channel 2 | Monitors regulated output voltage of Channel 2; identical function and reference to FB1. |
| 12 (EN2) | Enable Input – Channel 2 | Active-high digital control (VEH ≥ 1.5 V); enables independent control of Channel 2 startup/shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent buck regulation | Two fully separate converters on one die-no shared power stage or control loop, enabling asymmetric voltage rails (e.g., 1.2 V + 3.3 V) and independent enable sequencing. |
| Synchronous rectification | Integrated P- and N-channel MOSFETs eliminate external diode losses, achieving up to 96% peak efficiency at 1 A load. |
| Pulse-skipping modulation (PSM) | Reduces quiescent current to 40 µA per channel under light load (<10 mA), preserving battery life in idle states. |
| Internal soft-start | Gradually ramps switch current limit to 1.5 A over startup, preventing inrush current and output overshoot. |
| Comprehensive protection | Includes cycle-by-cycle overcurrent limiting (1.5 A peak), thermal shutdown (150°C), UVLO (prevents operation below safe input voltage), and short-circuit foldback (400 kHz min frequency). |
Applications
| Smartphone Baseband Power | Wireless Modem Core Supply |
|---|---|
Use Scenario: Dual-rail power delivery to baseband processor (1.2 V core) and RF transceiver (2.8 V I/O) in LTE/5G handsets. IC Role / Device Role / Timing Role: Primary dual-output DC-DC converter providing independently enabled, low-noise, high-efficiency regulation. Use Value: Enables simultaneous voltage scaling and power gating-reducing system-level standby current by >50% versus discrete solutions. | Use Scenario: Powering DSP, memory, and PHY layers in DSL/wireless broadband modems operating from USB or wall adapter input. IC Role / Device Role / Timing Role: Dual-channel buck regulator delivering stable 1.8 V and 3.3 V rails with fast load transient response. Use Value: Maintains <1% output deviation during 100 mA–1 A load steps-critical for error-free packet transmission and clock stability. |
| Portable Media Player Logic Rails | Industrial Handheld Terminal PMIC |
Use Scenario: Generating 1.5 V (audio codec) and 3.3 V (SD card interface) in MP3/MP4 players powered by single Li-ion cell. IC Role / Device Role / Timing Role: Compact, high-efficiency dual buck converter replacing discrete regulators and reducing BOM count by 6+ components. Use Value: Achieves 94% efficiency at 500 mA per channel-extending playback time by 22 minutes per 500 mAh battery capacity. | Use Scenario: Providing configurable 1.2 V (microcontroller core) and 2.5 V (touch controller) in ruggedized handheld terminals used in logistics or field service. IC Role / Device Role / Timing Role: Robust dual buck regulator with -40°C to +85°C ambient rating and thermal shutdown for uncontrolled environments. Use Value: Sustains full 1 A output per channel at 70°C ambient-enabling continuous barcode scanning without thermal throttling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130ARGTR | Single-channel, 3–17 V input, 3 A output; no dual-output capability; requires external circuitry for second rail. | Not suitable for space-constrained dual-rail systems-requires two ICs or additional LDOs to replicate PAM2306DYPAA functionality. | Select only if higher input voltage (>5.5 V) or single-rail >1 A is required; adds board area and cost for dual-rail implementation. |
| RT8059ZSP | Dual-channel, 2.5–5.5 V input, but fixed 1.2 V / 3.3 V outputs (non-adjustable); lacks independent EN pins and PSM mode. | Acceptable for fixed-voltage applications but cannot support dynamic voltage scaling or ultra-low-IQ sleep modes. | Choose only when output voltages are static and quiescent current <100 µA is acceptable; no soft-start or thermal hysteresis spec provided. |
Compared with TPS62130ARGTR and RT8059ZSP, the PAM2306DYPAA uniquely delivers true dual independent regulation in a single 3×3 mm package with programmable outputs, sub-0.1 µA shutdown, and integrated PSM-making it optimal for battery-powered dual-rail systems where size, efficiency, and flexibility are critical.
Availability
PAM2306DYPAA is available at Aetrix Electronics and suitable for smartphone baseband power, wireless modem core supply, and portable media player logic rails requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for PAM2306DYPAA 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-efficiency power management, signal integrity, and protection solutions for consumer, industrial, and automotive markets.
The PAM2306DYPAA belongs to Diodes' PAM-series high-efficiency DC-DC converters-designed specifically for portable and battery-operated equipment demanding minimal quiescent current, small footprint, and robust thermal performance.
FAQ
What is the minimum recommended inductor value for PAM2306DYPAA at 1.8 V output?
The datasheet specifies 2.2 µH for 1.8 V output with 3.6 V input. This value balances ripple current (target ΔIL ≈ 400 mA), efficiency, and physical size. Using <2.2 µH increases peak inductor current and may trigger overcurrent protection at full load; larger values reduce ripple but increase transient response time and board area.
Can PAM2306DYPAA operate with only one channel enabled?
Yes-EN1 and EN2 are fully independent. Disabling one channel (e.g., pulling EN2 low) shuts down its regulator while leaving Channel 1 fully operational with no cross-talk or efficiency penalty. The disabled channel draws <0.1 µA, and its LX pin floats safely; no external pull-down is required.
Does PAM2306DYPAA require external compensation components?
No-internal compensation eliminates need for external RC networks. The current-mode architecture with fixed 1.5 MHz frequency provides inherent stability across the full 2.5–5.5 V input and 1.2–3.3 V output ranges when using recommended 2.2–4.7 µH inductors and 10 µF ceramic capacitors.
How does thermal shutdown behave during sustained overload?
When junction temperature exceeds 150°C, the device latches off until temperature falls to 120°C (30°C hysteresis). During shutdown, both channels cease switching, LX pins go high-impedance, and total current draw drops to <0.1 µA. Recovery is automatic-no reset pin or external intervention needed.
PAM2306DYPAA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 1A
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- W-DFN3030-12
PAM2306DYPAA FAQ
1.How can I place an order for PAM2306DYPAA through Aetrix?
Please submit a Request for Quotation (RFQ) for PAM2306DYPAA 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 PAM2306DYPAA reliable?
The price and inventory of PAM2306DYPAA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PAM2306DYPAA is usually 5 days.
3.What payment methods are accepted for PAM2306DYPAA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PAM2306DYPAA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PAM2306DYPAA?
PAM2306DYPAA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PAM2306DYPAA 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 PAM2306DYPAA?
For technical support, including PAM2306DYPAA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PAM2306DYPAA requirements.
6.How does Aetrix verify that PAM2306DYPAA is sourced from the original manufacturer or authorized distributors?
All PAM2306DYPAA 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 PAM2306DYPAA meets industry standards.
7.What is the process for return or replacement of PAM2306DYPAA?
All PAM2306DYPAA units undergo pre-shipment inspection (PSI). If there is an issue with PAM2306DYPAA, 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 PAM2306DYPAA part is unused and in its original packaging.
Return procedure for PAM2306DYPAA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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