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Diodes Incorporated AP72200CT20-7
- Part No.:
- AP72200CT20-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 20-WFBGA, WLBGA
- Datasheet:
-
AP72200CT20-7.pdf
- Description:
- IC REG BUCK BST ADJ 2A W-WLB2118
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AP72200CT20-7 from Diodes Incorporated is a high-efficiency synchronous 4-switch buck-boost DC-DC converter with integrated 4.3A MOSFETs, 2.5MHz switching frequency, I²C programmability (up to 3.4MHz), and 2.6V–5.14V output voltage range. It delivers up to 2A continuous output current at 3.4V with VIN > 2.9V and supports seamless buck/boost mode transition in smartphones and portable consumer devices.
For engineers reviewing the AP72200CT20-7 datasheet, AP72200CT20-7 pinout, AP72200CT20-7 application, or AP72200CT20-7 equivalent, key selection considerations include its WLCSP-20 package size (2.125mm × 1.750mm), dual-mode PFM/PWM operation, programmable overcurrent limit (2A/4.3A), ultrasonic mode capability, and integrated power-good indicator with 5MΩ internal pull-up.
Technical Context
The AP72200 employs a four-switch H-bridge topology enabling true buck-boost operation across input voltages from 2.3V to 5.5V and output voltages from 2.6V to 5.14V. Its current-mode control architecture ensures stable regulation under wide line/load transients and enables smooth transitions between buck and boost modes without output discontinuity.
Internal protection includes overtemperature shutdown at 150°C (15°C hysteresis), reverse-current blocking, UVLO (2.125V nominal falling threshold), and configurable OCP via OCP pin or I²C register. The device supports three operating modes-PFM, forced PWM, and ultrasonic mode-with quiescent currents ranging from 0.3µA (shutdown) to 15mA (PWM active).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.3V to 5.5V - supports single-cell Li-ion/Li-poly battery input with headroom for voltage sag. |
| VOUT Range | 2.6V to 5.14V in 20mV steps - enables precise rail matching for USB PD, PMIC core supplies, and display bias. |
| Max Output Current | 2A continuous at VOUT=3.4V, VIN>2.9V - sufficient for SoC core rails and high-brightness display drivers. |
| Switching Frequency | 2.5MHz typical - allows use of compact 1µH inductors and reduces EMI filtering requirements. |
| I²C Speed | Up to 3.4MHz Fast Mode Plus - enables rapid dynamic voltage scaling during processor load changes. |
| Efficiency | Up to 97% - minimizes thermal stress in space-constrained handheld enclosures. |
| OCP Threshold | Selectable 2A (OCP pin low) or 4.3A (OCP pin high) - provides design flexibility for different load profiles. |
| Package | 20-ball WLCSP, 2.125mm × 1.750mm - ultra-compact footprint compatible with fine-pitch mobile PCB layouts. |
Pinout & Package
AP72200CT20-7 is housed in a 2.125mm × 1.750mm, 20-ball Wafer-Level Chip-Scale Package (WLCSP) with bottom-side ball layout optimized for minimal PCB area and thermal resistance (θJA = 50°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (A1) | Logic supply input | Powers internal control circuitry; decoupled separately from PVIN to avoid noise coupling into logic. |
| OCP (A2) | Overcurrent limit select | Hardwired logic input setting OCP threshold to 2A (low) or 4.3A (high); overridden by I²C register BB_OCP. |
| MODE (A3) | Operating mode control | Selects PFM (low) or forced PWM (high); internal 5.5MΩ pull-down defaults to PFM if floating. |
| SDA (A4) | I²C bidirectional data | Open-drain interface supporting Fast Mode Plus; requires external pull-up to VIO. |
| SCL (A5) | I²C clock input | Accepts up to 3.4MHz clock; timing compliant with I²C Fast Mode Plus specifications. |
| FB (B1) | Output voltage feedback | Resistor-divider input referenced to internal 0.6V reference; connects directly to VOUT for regulation. |
| PG (B2) | Power-good open-drain output | Active-high signal with 5MΩ internal pull-up to VIO; asserts after soft-start and within ±5% VOUT regulation. |
| EN (B4) | Enable control input | Active-high digital enable; pulling low resets all registers and places IC in shutdown (0.3µA IIN). |
| VIO (B5) | I²C and PG supply | Provides bias for SDA/SCL input thresholds and PG pull-up; independent of VIN/PVIN for flexible system-level sequencing. |
| VOUT (C1,D1) | Buck-boost output | Main regulated power rail; requires 2×22µF ceramic output capacitance per datasheet recommendation. |
| SW2 (C2,D2) | Switch node 2 | Connects to Q3/Q4 switches in H-bridge; critical for boost-phase energy transfer and EMI layout. |
| PGND (C3,D3) | Power ground return | Separate analog ground (GND) and power ground (PGND) pins minimize noise coupling into feedback path. |
| SW1 (C4,D4) | Switch node 1 | Connects to Q1/Q2 switches in H-bridge; critical for buck-phase energy transfer and thermal management. |
| PVIN (C5,D5) | Main power input | High-current input for power switches; bypassed with 10µF ceramic capacitor to suppress input ripple and noise. |
Key Features
| Feature | Design Value |
|---|---|
| Four-switch H-bridge topology | Enables true buck-boost conversion without external diodes or complex control logic, reducing BOM count and board area. |
| Ultrasonic mode (20–27kHz) | Eliminates audible coil whine in portable devices while maintaining regulation accuracy and transient response. |
| Programmable OCP via pin or I²C | Allows hardware-selectable current limit (2A/4.3A) or dynamic adjustment during runtime for adaptive load management. |
| Integrated power-good with 5MΩ pull-up | Reduces external component count and simplifies system power sequencing without requiring external pull-up resistors. |
| Reverse current protection | Prevents backflow from VOUT to PVIN during shutdown or fault conditions, protecting upstream battery or source. |
| Lead-free, halogen-free, RoHS 3 compliant | Meets global environmental regulations (<900ppm Br/Cl, <1000ppm Sb) for consumer electronics and mobile OEMs. |
Applications
| Smartphone Power Management | Tablet Core Rail Generation |
|---|---|
|
Use Scenario: Regulating battery voltage (2.8V–4.4V) to stable 3.3V/3.4V core supply for application processors and memory subsystems. IC Role / Device Role / Timing Role: Primary buck-boost regulator managing dynamic voltage scaling (DVS) and seamless mode transitions during CPU load spikes. Use Value: 97% peak efficiency and 2.5MHz switching reduce heat generation and allow use of 1µH inductors, saving >30% board area vs. lower-frequency alternatives. |
Use Scenario: Providing adjustable 2.8V–5.0V output for LCD/OLED display bias, camera modules, and USB OTG power delivery. IC Role / Device Role / Timing Role: Programmable output voltage regulator controlled via I²C to match varying peripheral voltage requirements. Use Value: 20mV output step resolution and ±1% DC accuracy ensure precise rail matching without external trimming components. |
| Portable Medical Monitor | Wireless Earbud Charging Case |
|
Use Scenario: Generating stable 3.3V from a single Li-ion cell (2.7V–4.2V) for microcontroller, sensor interface, and BLE radio subsystems. IC Role / Device Role / Timing Role: Highly integrated power solution delivering low-noise, low-quiescent current operation in battery-critical applications. Use Value: 0.3µA shutdown current and PFM mode (29µA quiescent) extend battery life beyond 72 hours in standby monitoring mode. |
Use Scenario: Boosting 3.7V battery voltage to 5.0V for USB-C charging port in compact earbud cases with tight thermal constraints. IC Role / Device Role / Timing Role: High-current boost converter with 4.3A switch capability and integrated reverse-current blocking. Use Value: Seamless buck/boost transition prevents output dropout when battery voltage crosses 4.5V, ensuring uninterrupted charging handshake. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP8845GQ from Monolithic Power Systems | 3A output, 2.5MHz, no I²C interface; uses external resistor for VOUT setpoint. | Lacks programmability and power-good signaling; suitable only for fixed-output designs. | Choose when cost sensitivity outweighs need for dynamic voltage control or system-level fault reporting. |
| TPS63802DLT from Texas Instruments | 2A output, 2.4MHz, I²C-compatible, but only supports PFM/PWM (no ultrasonic mode). | No 20–27kHz silent operation; higher quiescent current (50µA PFM) limits battery runtime. | Prefer when TI ecosystem integration (e.g., WEBENCH) or automotive qualification (AEC-Q100) is required. |
Compared with MP8845GQ and TPS63802DLT, the AP72200CT20-7 uniquely combines 4.3A switch capability, ultrasonic mode, and I²C-programmable OCP in a 2.125mm × 1.750mm WLCSP-enabling smaller form factors, quieter operation, and finer-grained system power control.
Availability
AP72200CT20-7 is available at Aetrix Electronics and suitable for smartphone power management, tablet core rail generation, portable medical monitors, and wireless earbud charging cases requiring stable component supply, long-term lifecycle support, and RoHS 3 compliance.
Supply support for AP72200CT20-7 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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The AP72200 belongs to Diodes' high-efficiency DC-DC converter product line, engineered specifically for space-constrained, battery-powered portable electronics demanding high integration, low quiescent current, and seamless buck-boost operation.
FAQ
What is the minimum input voltage required for AP72200CT20-7 to regulate a 3.4V output?
The AP72200CT20-7 maintains regulation down to 2.3V input across its full output range. For 3.4V output, it operates in boost mode below ~3.4V input and transitions seamlessly to buck mode above that threshold. The device guarantees 2A output current only when input exceeds 2.9V, per datasheet Section 7.1.
Can the AP72200CT20-7 operate without an I²C controller connected?
Yes. The AP72200CT20-7 powers up with default register values: 3.4V output, PFM mode, and 2A OCP threshold. All functions-including EN, MODE, and OCP pins-operate independently of I²C. The SDA/SCL pins default to high-impedance and do not affect startup or regulation if left unconnected.
How does the AP72200CT20-7 handle reverse current flow from VOUT to PVIN?
The AP72200CT20-7 integrates active reverse-current protection that disables both high-side switches (Q1 and Q3) when VOUT exceeds PVIN by more than 100mV. This prevents battery discharge through the regulator during shutdown or when external sources back-drive the output, verified in datasheet Figure 12 and Section 8.3.
Is the 2.125mm × 1.750mm WLCSP package compatible with standard reflow profiles?
Yes. The AP72200CT20-7 WLCSP is qualified for JEDEC J-STD-020D moisture sensitivity level 1 (MSL1) and supports standard lead-free reflow profiles with peak temperature up to 260°C. Thermal resistance data (θJA = 50°C/W, θJC = 2°C/W) confirms suitability for compact mobile PCBs with 2oz copper and recommended pad layout.
AP72200CT20-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 20-WFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up, Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck, Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.6V
- Voltage - Output (Max):
- 5.14V
- Current - Output:
- 2A
- Frequency - Switching:
- 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -30°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- W-WLB2118-20
AP72200CT20-7 FAQ
1.How can I place an order for AP72200CT20-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP72200CT20-7 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 AP72200CT20-7 reliable?
The price and inventory of AP72200CT20-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP72200CT20-7 is usually 5 days.
3.What payment methods are accepted for AP72200CT20-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP72200CT20-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP72200CT20-7?
AP72200CT20-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP72200CT20-7 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 AP72200CT20-7?
For technical support, including AP72200CT20-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP72200CT20-7 requirements.
6.How does Aetrix verify that AP72200CT20-7 is sourced from the original manufacturer or authorized distributors?
All AP72200CT20-7 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 AP72200CT20-7 meets industry standards.
7.What is the process for return or replacement of AP72200CT20-7?
All AP72200CT20-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP72200CT20-7, 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 AP72200CT20-7 part is unused and in its original packaging.
Return procedure for AP72200CT20-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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