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Diodes Incorporated AP7312-1830FM-7
- Part No.:
- AP7312-1830FM-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
AP7312-1830FM-7.pdf
- Description:
- IC REG LINEAR 1.8V/3V 6DFN2018
- Quantity:
- Payment:
- Shipping:
Inventory:2,467
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Product details
Overview
AP7312-1830FM-7 from Diodes Incorporated is a dual-channel, 150mA low-dropout linear regulator with independent enable inputs (EN1/EN2), fixed 1.8V and 3.0V outputs, 60μA quiescent current, and 150mV dropout at full load. It operates across 2V–6V input and supports fast transient response in portable power rails for baseband and RF subsystems.
For engineers reviewing the AP7312-1830FM-7 datasheet, AP7312-1830FM-7 pinout, AP7312-1830FM-7 application, or AP7312-1830FM-7 equivalent, key selection criteria include dual-rail sequencing capability, ultra-low IQ for battery runtime extension, thermal shutdown threshold at 165°C, PSRR of 65dB at 1kHz, and compatibility with 1μF ceramic output capacitors.
Technical Context
The AP7312 integrates two independent LDO channels sharing a common ground but featuring separate IN, EN, and OUT pins-enabling asynchronous power-up/down control. Each channel uses a P-MOS pass transistor with internal bandgap reference, error amplifier, and current-limit circuitry.
Its fast transient response (≤150μs start-up, <20mV undershoot/overshoot under 100mA load step) stems from optimized internal compensation and low-output-impedance design. Thermal shutdown activates at 165°C with 30°C hysteresis, and short-circuit protection limits output to 60mA during fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.8V (OUT1) and 3.0V (OUT2); fixed, non-adjustable, enabling direct supply to core logic and I/O rails |
| Max Output Current | 150mA per channel; sufficient for powering DSP cores, Bluetooth radios, and sensor interfaces without external boost |
| Quiescent Current | 60μA (both channels active); minimizes standby power loss in always-on subsystems like real-time clocks or wake-on-RF circuits |
| Dropout Voltage | 150mV at 150mA (for VOUT ≥2.5V); allows operation from single-cell Li-ion (3.0V min) while maintaining regulation at 3.0V output |
| PSRR | 65dB at 1kHz; suppresses switching noise from adjacent DC-DC converters feeding shared input rail |
| Start-up Time | 150μs (EN-to-VOUT); enables rapid power cycling in TDMA-based GSM burst modes without voltage droop |
| Operating Temp | -40°C to +85°C ambient; validated for consumer handheld and automotive infotainment cabin applications |
Pinout & Package
AP7312-1830FM-7 is packaged in the DFN2018-6 (2.0mm × 1.8mm, 0.5mm pitch) thermally enhanced lead-free package with exposed thermal pad. This 6-pin surface-mount package supports high-density PCB layouts and improved thermal dissipation (θJA = 60°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Main power input | Accepts 2V–6V; requires ≥1μF ceramic bypass capacitor placed adjacent to pin for stability and noise rejection |
| EN1 (Pin 2) | Channel 1 enable control | Active-high logic input; drives OUT1 only; VIH = 1.4V min ensures compatibility with 1.8V GPIO |
| EN2 (Pin 3) | Channel 2 enable control | Independent active-high logic input for OUT2; allows staggered power sequencing between 1.8V and 3.0V domains |
| GND (Pin 4) | Power and signal reference | Common ground return for both regulators; must be connected to low-impedance PCB plane for EMI suppression |
| OUT1 (Pin 6) | 1.8V regulated output | Delivers up to 150mA at 1.8V ±2%; requires local 1μF ceramic capacitor to GND for transient stability |
| OUT2 (Pin 5) | 3.0V regulated output | Delivers up to 150mA at 3.0V ±2%; decoupled separately from OUT1 to prevent cross-rail coupling |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1/EN2 allow precise sequencing of 1.8V and 3.0V rails-critical for FPGA I/O bank power-up order compliance |
| Stable with 1μF ceramic output caps | Eliminates need for larger, higher-ESR tantalum or aluminum electrolytic capacitors-reducing board area and cost |
| Fast load transient response | Under 20mV deviation during 100mA load step (10–90% rise time ≤2μs); maintains clean supply for high-speed ADCs and RF synthesizers |
| Thermal shutdown with hysteresis | Shuts down at 165°C and re-enables at 135°C; prevents latch-up during sustained overload while allowing safe recovery |
| Low ESD sensitivity | 8kV HBM rating enables robust handling in automated SMT lines and field-replaceable modules without special ESD controls |
Applications
| Smartphone Baseband Power | Bluetooth Audio SoC Supply |
|---|---|
Use Scenario: Powers ARM Cortex-A series application processor core (1.8V) and memory I/O interface (3.0V) in LTE smartphones. IC Role / Device Role / Timing Role: Dual-rail LDO delivering tightly regulated, low-noise supplies synchronized to PMIC-controlled power states. Use Value: 60μA quiescent current extends standby battery life; fast transient response prevents brownout during burst-mode LTE transmission. | Use Scenario: Supplies 1.8V digital core and 3.0V analog/RF section of Bluetooth 5.0 audio SoC in wireless earbuds. IC Role / Device Role / Timing Role: Independent EN1/EN2 pins enable staggered power-up: digital core first, then RF section after clock stabilization. Use Value: 150mV dropout allows operation from declining battery (down to ~3.15V) while sustaining 3.0V rail; 65dB PSRR blocks DC-DC ripple. |
| Portable Medical Sensor Hub | GSM Modem Power Management |
Use Scenario: Provides isolated 1.8V (MCU, BLE radio) and 3.0V (analog front-end, op-amps) rails in wearable ECG monitor. IC Role / Device Role / Timing Role: Low-IQ dual LDO supporting always-on sensing mode with periodic wake-up via EN-controlled channel enable. Use Value: 60μA total IQ enables >1-year battery life on coin cell; thermal shutdown protects against enclosure overheating during extended use. | Use Scenario: Powers TDMA-based GSM modem IC requiring rapid 0–150mA load transitions every 4.615ms during transmit bursts. IC Role / Device Role / Timing Role: Fast-transient LDO replacing bulkier solutions to meet GSM Class 4 peak current demands without voltage sag. Use Value: 150μs start-up and <20mV transient deviation ensure reliable TX/RX timing margin; 1μF cap compatibility reduces BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7345D-1830FM-7 | Successor device with lower IQ (35μA), improved PSRR (70dB @1kHz), and same pinout/package | Direct drop-in replacement; recommended for new designs per Diodes' notice | Select when designing new products requiring extended battery life and higher noise immunity |
| MCP1826S-18302 | Microchip dual LDO; 250mA per channel, 85μA IQ, 300mV dropout at 250mA, SOT-23-6 package | Higher current capacity but larger dropout and footprint; no thermal shutdown hysteresis spec | Choose only if 250mA/channel is required and thermal cycling behavior is not critical |
Compared with AP7312-1830FM-7, AP7345D-1830FM-7 delivers 42% lower quiescent current and 5dB higher PSRR in identical form factor-making it superior for next-gen portable designs-while MCP1826S-18302 trades off efficiency and protection features for higher current headroom in legacy-compatible layouts.
Availability
AP7312-1830FM-7 is available at Aetrix Electronics and suitable for smartphone baseband power, Bluetooth audio SoC supply, portable medical sensor hubs, and GSM modem power management requiring stable component supply across industrial temperature ranges and long-lifecycle production programs.
Supply support for AP7312-1830FM-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 company specializing in discrete, analog, and mixed-signal devices for power management, signal integrity, and connectivity applications.
The AP7312 belongs to Diodes' precision LDO regulator product line, engineered specifically for space-constrained, battery-powered consumer electronics demanding ultra-low quiescent current, fast transient response, and dual-rail flexibility.
FAQ
What is the maximum input voltage for AP7312-1830FM-7?
The absolute maximum input voltage is 6.5V, but the recommended operating range is 2V to 6V. Exceeding 6V risks permanent damage due to internal junction breakdown. At VIN = 6V, dropout remains within specification for both 1.8V and 3.0V outputs, enabling use with 5V USB-supplied systems or boosted battery rails.
Can AP7312-1830FM-7 operate without output capacitors?
No. The device requires ≥1μF ceramic output capacitors on both OUT1 and OUT2 for stability and transient performance. Omitting them causes oscillation or excessive voltage overshoot during load steps. The datasheet confirms stability only with 1μF/≥10mΩ ESR ceramics, and recommends placing them within 2mm of respective OUT and GND pins.
Does AP7312-1830FM-7 support power sequencing between its two outputs?
Yes. Independent EN1 and EN2 pins allow precise control over turn-on/turn-off timing of each output. For example, asserting EN1 before EN2 powers the 1.8V domain first-essential for processors requiring core voltage before I/O voltage. Delay can be implemented via RC networks or MCU GPIO timing.
Is AP7312-1830FM-7 RoHS compliant and halogen-free?
Yes. It uses "Green" molding compound (no bromine or antimony) and features lead-free finish compliant with EU Directive 2002/95/EC (RoHS). The DFN2018-6 package meets IPC/JEDEC J-STD-020 moisture sensitivity level 1 and is qualified for reflow soldering per JEDEC standards.
AP7312-1830FM-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.8V, 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 150mA, 0.2V @ 150mA
- Current - Output:
- 150mA, 150mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2018-6
AP7312-1830FM-7 FAQ
1.How can I place an order for AP7312-1830FM-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7312-1830FM-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 AP7312-1830FM-7 reliable?
The price and inventory of AP7312-1830FM-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7312-1830FM-7 is usually 5 days.
3.What payment methods are accepted for AP7312-1830FM-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7312-1830FM-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7312-1830FM-7?
AP7312-1830FM-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7312-1830FM-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 AP7312-1830FM-7?
For technical support, including AP7312-1830FM-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7312-1830FM-7 requirements.
6.How does Aetrix verify that AP7312-1830FM-7 is sourced from the original manufacturer or authorized distributors?
All AP7312-1830FM-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 AP7312-1830FM-7 meets industry standards.
7.What is the process for return or replacement of AP7312-1830FM-7?
All AP7312-1830FM-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7312-1830FM-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 AP7312-1830FM-7 part is unused and in its original packaging.
Return procedure for AP7312-1830FM-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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