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Diodes Incorporated PAM2306AYPAA
- Part No.:
- PAM2306AYPAA
- Manufacturer:
- Diodes Incorporated
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
PAM2306AYPAA.pdf
- Description:
- IC REG BUCK ADJ 1A DL 12WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,089
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Product details
Overview
PAM2306AYPAA from Diodes Incorporated is a dual-channel, current-mode PWM step-down DC-DC converter in U-DFN3030-12 package, delivering up to 1A per channel with 96% peak efficiency, 1.5MHz switching frequency, and 40μA typical quiescent current per channel. It supports 2.5V–5.5V input and offers fixed or adjustable outputs (e.g., 3.3V, 2.8V, 1.8V), targeting portable electronics requiring compact, high-efficiency dual-rail power.
For engineers reviewing the PAM2306AYPAA datasheet, PAM2306AYPAA pinout, PAM2306AYPAA application, or PAM2306AYPAA equivalent, key selection criteria include dual-channel independent enable control, synchronous rectification for low dropout, PSM mode for light-load battery life extension, thermal shutdown at +150°C, and UVLO protection to prevent deep discharge.
Technical Context
The PAM2306AYPAA integrates two independent current-mode PWM controllers with internal P-channel and N-channel MOSFETs, enabling synchronous buck conversion per channel. Each channel features cycle-by-cycle peak current limiting (1.5A typ), soft-start, and separate EN/FB pins for flexible rail sequencing and output voltage programming.
It operates in PWM mode under heavy load for tight regulation and transitions to pulse-skipping modulation (PSM) below ~10mA load to reduce quiescent current to 40μA/channel. The 0.6V reference voltage and external resistor divider allow precise output setting, while thermal shutdown and UVLO ensure robust operation across –40°C to +85°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single Li+/Li-Po cell, USB, or multi-cell alkaline/NiMH sources without pre-regulation. |
| Output Current (per channel) | Up to 1A - sufficient for core logic, memory, and RF subsystems in portable devices. |
| Switching Frequency | 1.5MHz (typ) - enables use of small 2.2µH inductors and ceramic capacitors for compact PCB layout. |
| Quiescent Current | 40μA (typ per channel) - extends battery runtime in standby/sleep modes of handheld devices. |
| Feedback Reference Voltage | 0.6V (typ) - allows accurate, resistor-programmable outputs from 1.2V to 3.3V with ±3% regulation accuracy. |
| Thermal Shutdown Threshold | +150°C - protects against sustained overload or poor heatsinking; resumes at +120°C hysteresis. |
| Shutdown Current | 0.1μA (typ per channel) - isolates input from output during disable, minimizing system leakage. |
Pinout & Package
U-DFN3030-12 is a 3.0mm × 3.0mm, 0.6mm height, thermally enhanced leadless package with exposed thermal pad (Pin 3/9). It supports reflow soldering per J-STD-020 Level 1 and delivers θJA = 60°C/W on standard 2-layer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN2 | Power Input (Channel 2) | Independent 2.5–5.5V supply input for second regulator channel. |
| 2 LX2 | Switch Node (Channel 2) | Connects to inductor and output capacitor; requires low-inductance routing to minimize EMI. |
| 3,9 Exposed Pad | Ground / Thermal Plane | Mandatory solder connection to large PCB GND copper area for thermal dissipation and noise reduction. |
| 4 FB1 | Feedback Input (Channel 1) | Monitors output via resistor divider; sets regulated voltage using 0.6V internal reference. |
| 5,11 NC1, NC2 | No Connection | Unbonded die pads; must remain unconnected and unstubbed on PCB. |
| 6 EN1 | Enable Input (Channel 1) | Active-high logic control (VEH = 1.5V min); allows independent power sequencing of Channel 1. |
| 7 VIN1 | Power Input (Channel 1) | Independent 2.5–5.5V supply input for first regulator channel. |
| 8 LX1 | Switch Node (Channel 1) | Connects to inductor and output capacitor; isolated from LX2 to prevent cross-talk. |
| 10 FB2 | Feedback Input (Channel 2) | Monitors second output; enables independent voltage setting and regulation per channel. |
| 12 EN2 | Enable Input (Channel 2) | Active-high logic control (VEH = 1.5V min); supports staggered startup or fault isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent PWM channels | Enables simultaneous generation of two different regulated rails (e.g., 3.3V I/O + 1.8V core) with separate enable and feedback paths. |
| Synchronous rectification | Integrates both P- and N-MOSFETs per channel, eliminating external diode losses and achieving >96% efficiency at full load. |
| Pulse-skipping modulation (PSM) | Reduces quiescent current to 40μA/channel at light loads, directly extending battery life in always-on sensor or standby circuits. |
| Internal soft-start | Gradually ramps switch current limit to 1.5A over startup, preventing inrush current spikes and output overshoot. |
| Comprehensive protection suite | Includes UVLO, short-circuit current limiting (1.5A peak), thermal shutdown (+150°C), and overtemperature hysteresis (+30°C). |
Applications
| Smartphone Power Management | Wireless Modem Baseband |
|---|---|
Use Scenario: Dual-rail power for application processor (1.2V core) and display interface (3.3V I/O) in space-constrained smartphones. IC Role / Device Role / Timing Role: Primary dual-output DC-DC converter providing tightly regulated, sequenced supplies with independent enable control. Use Value: Eliminates need for two discrete converters, reducing BOM count by 30% and PCB area by 45% versus discrete solutions. | Use Scenario: Powering baseband SoC (1.8V) and RF transceiver (2.8V) in LTE/5G wireless modems with dynamic load profiles. IC Role / Device Role / Timing Role: High-efficiency dual buck regulator supporting rapid load transients and low-noise operation for sensitive RF sections. Use Value: 1.5MHz switching minimizes output ripple (<15mV p-p) and avoids interference with cellular bands (700MHz–3.8GHz). |
| Portable Medical Monitor | Industrial Handheld Scanner |
Use Scenario: Supplying microcontroller (3.3V), analog front-end (2.5V), and Bluetooth module (1.8V) in battery-powered patient monitors. IC Role / Device Role / Timing Role: Dual-channel PMIC delivering stable, low-noise rails with PSM mode to maximize battery duration between charges. Use Value: 40μA/channel quiescent current extends operating time to >72 hours on a 1000mAh Li-ion cell in sleep mode. | Use Scenario: Powering ARM Cortex-M7 MCU (1.2V), image sensor (2.8V), and laser driver (3.3V) in rugged barcode scanners. IC Role / Device Role / Timing Role: Compact dual buck converter with thermal shutdown and UVLO, ensuring reliable operation in variable-temperature field environments. Use Value: U-DFN3030-12 package withstands mechanical shock and meets IPC Class 2 reliability standards for industrial handhelds. |
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 |
|---|---|---|---|
| TPS62400DRVR | Single 2.25MHz converter with dual outputs via external resistive divider; no independent channel enable or PSM mode. | Requires external circuitry for true dual-rail independence; lower light-load efficiency (120μA IQ). | Select when cost sensitivity outweighs channel independence and battery life requirements. |
| RTQ2132B-QT | Automotive-grade AEC-Q100 qualified dual buck; 2A per channel, 2.5MHz, but larger QFN-20 package and higher BOM cost. | Designed for automotive infotainment; over-specified for consumer portables in terms of qualification and current rating. | Select only if AEC-Q100 compliance and 2A capability are mandatory for the end application. |
Compared with TPS62400DRVR and RTQ2132B-QT, the PAM2306AYPAA uniquely balances dual-channel autonomy, ultra-low quiescent current, and compact U-DFN3030-12 packaging-making it optimal for cost- and size-sensitive portable electronics where independent rail control and battery longevity are critical.
Availability
PAM2306AYPAA is available at Aetrix Electronics and suitable for smartphone power management, wireless modem baseband, portable medical monitors, and industrial handheld scanners requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for PAM2306AYPAA 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-performance power management, signal integrity, and protection solutions for consumer, industrial, and communications markets.
The PAM2306 belongs to Diodes' Power Management IC portfolio, designed specifically for space-constrained portable electronics needing efficient, dual-rail DC-DC conversion with minimal external components and extended battery life.
FAQ
What is the maximum output current per channel for PAM2306AYPAA?
The PAM2306AYPAA delivers up to 1A per channel under recommended operating conditions (TA ≤ +85°C, proper PCB thermal design). Peak inductor current is limited to 1.5A cycle-by-cycle. Sustained 1A operation requires adequate copper area on the exposed pad and ambient temperature ≤ +60°C to maintain junction temperature below +125°C.
Can PAM2306AYPAA generate two different fixed output voltages simultaneously?
Yes. Each channel has independent FB and EN pins, allowing separate resistor dividers to set distinct fixed outputs-e.g., 3.3V on Channel 1 (R1=540kΩ, R2=120kΩ) and 1.8V on Channel 2 (R1=200kΩ, R2=100kΩ). Both outputs regulate independently with ±3% accuracy and no cross-regulation penalty.
Does PAM2306AYPAA support forced PWM mode, or is PSM automatic?
The PAM2306AYPAA automatically enters pulse-skipping modulation (PSM) below ~10mA load per channel and reverts to fixed-frequency PWM above that threshold. There is no external pin or register to force continuous PWM mode; PSM is inherent to its current-mode architecture and cannot be disabled.
What is the minimum recommended output capacitance for stable operation?
Diodes specifies ≥10µF ceramic output capacitance per channel (X5R/X7R dielectric) with ≤10mΩ ESR. Lower ESR improves transient response and reduces output ripple; using two 4.7µF capacitors in parallel (total 9.4µF) meets stability requirements if placed close to FB and LX pins with short traces.
PAM2306AYPAA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
PAM2306AYPAA FAQ
1.How can I place an order for PAM2306AYPAA through Aetrix?
Please submit a Request for Quotation (RFQ) for PAM2306AYPAA 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 PAM2306AYPAA reliable?
The price and inventory of PAM2306AYPAA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PAM2306AYPAA is usually 5 days.
3.What payment methods are accepted for PAM2306AYPAA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PAM2306AYPAA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PAM2306AYPAA?
PAM2306AYPAA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PAM2306AYPAA 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 PAM2306AYPAA?
For technical support, including PAM2306AYPAA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PAM2306AYPAA requirements.
6.How does Aetrix verify that PAM2306AYPAA is sourced from the original manufacturer or authorized distributors?
All PAM2306AYPAA 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 PAM2306AYPAA meets industry standards.
7.What is the process for return or replacement of PAM2306AYPAA?
All PAM2306AYPAA units undergo pre-shipment inspection (PSI). If there is an issue with PAM2306AYPAA, 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 PAM2306AYPAA part is unused and in its original packaging.
Return procedure for PAM2306AYPAA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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