My Inquiry
My Account
Diodes Incorporated AP7350-45CF4-7
- Part No.:
- AP7350-45CF4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-XFBGA, WLBGA
- Datasheet:
-
AP7350-45CF4-7.pdf
- Description:
- IC REG LIN 4.5V 150MA X2WLB0606
- Quantity:
- Payment:
- Shipping:
Inventory:3,251
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7350-45CF4-7 from Diodes Incorporated is a 4.5V fixed-output, 150mA ultra-low quiescent current (0.25µA typ) LDO regulator in a wafer-level chip-scale X2-WLB0606-4 package. It features ±1% output voltage accuracy over temperature, 2.0–5.25V input range, and enable-controlled on/off operation - designed for power management in space-constrained, battery-powered systems such as wearable sensors and IoT edge nodes.
For engineers reviewing the AP7350-45CF4-7 datasheet, AP7350-45CF4-7 pinout, AP7350-45CF4-7 application, or AP7350-45CF4-7 equivalent, key selection criteria include dropout voltage at 150mA (0.14V typ), standby current (0.02µA typ), EN logic thresholds (0.4V low / 1.0V high), thermal resistance (267°C/W), and compatibility with 0.1µF ceramic input/output capacitors.
Technical Context
The AP7350-45CF4-7 integrates a precision voltage reference, error amplifier, current-limit protection, and active enable control circuitry within a monolithic CMOS process. Its architecture delivers stable regulation under load transients up to 150mA while maintaining sub-µA quiescent draw across -40°C to +85°C ambient.
It operates without external discharge circuitry (non-AP7350D variant), supports input voltages down to 2.0V, and achieves 2% total output voltage tolerance over full temperature and load range. The X2-WLB0606-4 package enables direct board-level mounting with SnAgCu solderable bumps and <0.01g mass.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.5V ±1% at +25°C; ±2% over -40°C to +85°C - ensures stable rail for 3.3V/5V-compatible logic and analog peripherals. |
| Max Output Current | 150mA - sufficient to power microcontrollers, BLE radios, and image sensors in compact portable devices. |
| Quiescent Current | 0.25µA typical - extends battery life in always-on sensor nodes by minimizing idle power loss. |
| Dropout Voltage | 0.14V typical at 150mA - allows operation from single-cell Li-ion (3.0–4.2V) or dual-cell alkaline (up to 3.2V) with margin. |
| Enable Thresholds | VEN(HI) ≥ 1.0V, VEN(LO) ≤ 0.4V - compatible with 1.8V/3.3V GPIO without level-shifting. |
| Thermal Resistance | θJA = 267°C/W - requires minimal PCB copper area for thermal management in ultra-thin wearables. |
| ESD Protection | HBM > 4kV, MM > 400V - robust handling during automated assembly and field operation. |
Pinout & Package
AP7350-45CF4-7 uses the X2-WLB0606-4 wafer-level chip-scale package (0.64mm × 0.64mm × 0.23mm, 0.01g), with SnAgCu solderable bumps and moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Bottom View) | EN | Active-high enable input; must be driven - floating causes undefined output state. |
| 2 (Bottom View) | GND | Power ground reference; connects directly to PCB ground plane for low-impedance return path. |
| 3 (Bottom View) | VOUT | Regulated 4.5V output; requires 0.1µF ceramic capacitor placed adjacent to pin for stability. |
| 4 (Bottom View) | VIN | Input supply (2.0–5.25V); decoupled with 0.1µF ceramic capacitor near pin to suppress supply noise. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 0.25µA typical enables >1-year battery life in coin-cell-powered IoT sensors. |
| Miniature WLCSP footprint | X2-WLB0606-4 (0.64mm²) saves >70% board area vs. SOT-23, critical for wearables under 10mm² PCB real estate. |
| High output accuracy | ±1% at +25°C ensures reliable ADC reference and RF IC biasing without calibration overhead. |
| Integrated enable control | Digital ON/OFF via EN pin eliminates need for external MOSFET switch and reduces BOM count. |
| Robust ESD & latch-up immunity | 4kV HBM and >400mA latch-up rating support industrial-grade reliability in unshielded environments. |
Applications
| Wearable Health Monitor | IoT Edge Sensor Node |
|---|---|
|
Use Scenario: Continuous ECG/PPG sensing powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Primary 4.5V power rail generator for analog front-end and BLE SoC. Use Value: 0.25µA quiescent current extends operational life beyond 18 months between battery replacements. |
Use Scenario: Battery-operated environmental sensor (temp/humidity/pressure) transmitting via LoRaWAN. IC Role / Device Role / Timing Role: Stable 4.5V supply for MCU, radio transceiver, and precision ADC. Use Value: ±1% output accuracy maintains consistent ADC reference and RF output power calibration. |
| Smart Camera Module | Industrial Wireless Transmitter |
|
Use Scenario: Miniaturized USB-C camera dongle with image sensor and ISP ASIC. IC Role / Device Role / Timing Role: Low-noise 4.5V rail for image sensor analog core and clock buffer. Use Value: 0.14V dropout enables operation from 4.2V Li-ion cell throughout discharge cycle. |
Use Scenario: DIN-rail mounted vibration sensor with 4–20mA loop and wireless backhaul. IC Role / Device Role / Timing Role: Power source for microcontroller and RF module in sealed enclosure. Use Value: X2-WLB0606-4 package withstands reflow and meets IPC Class 3 reliability standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-4502E/TO | TO-92 package (larger), 1.6µA quiescent current, no enable pin | Lacks EN control; unsuitable for duty-cycled sensor nodes requiring deep-sleep mode | Select only when board space is unconstrained and enable functionality is unnecessary. |
| Torex XC6210B452MR-G | Same XDFN-4 package, 1.0µA quiescent current, 4.5V ±2% accuracy | Lower accuracy impacts precision analog circuits; higher IQ reduces battery lifetime by ~4× | Acceptable for cost-sensitive consumer IoT where 4.5V ±2% is sufficient and EN not required. |
Compared with MCP1700-4502E/TO and XC6210B452MR-G, AP7350-45CF4-7 uniquely combines wafer-level miniaturization, sub-µA quiescent draw, and precise ±1% regulation - making it optimal for next-generation ultra-low-power, space-limited embedded systems.
Availability
AP7350-45CF4-7 is available at Aetrix Electronics and suitable for wearable electronics, IoT sensor modules, and wireless communication devices requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for AP7350-45CF4-7 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 manufacturer of discrete semiconductors and analog ICs, specializing in high-efficiency power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP7350 series targets ultra-low-power, space-constrained battery-operated applications - emphasizing minimal quiescent current, miniature packaging, and high DC accuracy for emerging wearable and edge-sensing platforms.
FAQ
What is the minimum input voltage required for AP7350-45CF4-7 to regulate 4.5V output?
The AP7350-45CF4-7 requires VIN ≥ VOUT + dropout voltage. At 150mA load, dropout is 0.14V typical, so minimum VIN is 4.64V. However, the device remains functional down to 2.0V input - just unable to sustain 4.5V output below that threshold. For reliable 4.5V regulation, VIN must exceed 4.64V under full load.
Can AP7350-45CF4-7 be used without an external output capacitor?
No. The AP7350-45CF4-7 requires a minimum 0.1µF ceramic output capacitor (X5R/X7R) placed adjacent to VOUT and GND pins for stability and transient response. Omitting COUT risks oscillation, poor load regulation, and potential damage during fast load steps - as confirmed in the datasheet's Application Information section.
Is AP7350-45CF4-7 qualified for automotive applications?
No. AP7350-45CF4-7 is not AEC-Q100 qualified. Diodes Incorporated explicitly states that automotive-grade versions require specific change control, PPAP capability, and IATF 16949 manufacturing - and directs users to contact their representative for such parts. This part is intended for commercial/industrial use only.
How does the EN pin behave during power-up if left unconnected?
The EN pin must never be left floating. An unconnected EN pin results in undefined output behavior - potentially causing erratic turn-on, partial regulation, or latch-up. Per datasheet Pin Descriptions, EN must be actively driven high (≥1.0V) or low (≤0.4V); if unused, tie directly to VIN to ensure permanent enable.
AP7350-45CF4-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-XFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- 4.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.35V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 700 nA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Current Limit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-WLB0606-4
AP7350-45CF4-7 FAQ
1.How can I place an order for AP7350-45CF4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7350-45CF4-7 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 AP7350-45CF4-7 reliable?
The price and inventory of AP7350-45CF4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7350-45CF4-7 is usually 5 days.
3.What payment methods are accepted for AP7350-45CF4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7350-45CF4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7350-45CF4-7?
AP7350-45CF4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7350-45CF4-7 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 AP7350-45CF4-7?
For technical support, including AP7350-45CF4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7350-45CF4-7 requirements.
6.How does Aetrix verify that AP7350-45CF4-7 is sourced from the original manufacturer or authorized distributors?
All AP7350-45CF4-7 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 AP7350-45CF4-7 meets industry standards.
7.What is the process for return or replacement of AP7350-45CF4-7?
All AP7350-45CF4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7350-45CF4-7, 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 AP7350-45CF4-7 part is unused and in its original packaging.
Return procedure for AP7350-45CF4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7350-45CF4-7 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
