My Inquiry
My Account
Diodes Incorporated AP7315-285SR-7
- Part No.:
- AP7315-285SR-7
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP7315-285SR-7.pdf
- Description:
- IC REG LINEAR 2.85V 150MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:3,860
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7315-285SR-7 from Diodes Incorporated is a 150mA low-dropout linear regulator with fixed 2.85V output, ±1% accuracy, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and 35µA quiescent current. It features enable control, operates from 1.7V to 5.25V input, and is optimized for RF supply rails in space-constrained portable devices.
For engineers reviewing the AP7315-285SR-7 datasheet, AP7315-285SR-7 pinout, AP7315-285SR-7 application, or AP7315-285SR-7 equivalent, key selection criteria include dropout voltage at 150mA (210mV typical), EN logic thresholds (0.5V low / 1.3V high), thermal performance in SOT23-3, and compatibility with 0.47µF ceramic input/output capacitors.
Technical Context
The AP7315-285SR-7 uses a CMOS-based LDO architecture with integrated voltage reference, error amplifier, and current-limit circuitry. Its non-discharge design means the output remains floating during shutdown-no internal discharge path exists between VOUT and GND.
It delivers stable regulation under load transients up to 150mA with <1.0% load regulation and supports fast line transient response due to high PSRR across 100Hz–1MHz. The EN pin directly controls NMOS pass device gate, enabling hard on/off switching without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85V ±1% - ensures precise biasing for 2.8V–2.9V logic or RF ICs without external feedback. |
| Max Output Current | 150mA - sufficient for powering baseband processors, camera sensors, or low-power RF front-ends. |
| PSRR | 75dB at 1kHz - suppresses switching noise from adjacent DC/DC converters feeding noisy power domains. |
| Output Noise | 60µVrms (10Hz–100kHz) - minimizes phase noise impact on VCOs and PLLs in wireless transceivers. |
| Quiescent Current | 35µA typical - enables multi-day battery life in always-on sensor or standby-mode subsystems. |
| Dropout Voltage | 210mV at 150mA - allows operation from single-cell Li-ion (3.0V min) down to 3.06V while maintaining regulation. |
| Input Voltage Range | 1.7V to 5.25V - compatible with wide-input PMIC outputs, USB-powered systems, and multi-rail battery packs. |
Pinout & Package
SOT23-3 package (SR variant) with 1.3mm × 1.3mm footprint and 0.95mm height; thermally enhanced with exposed pad connected to GND in PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 3) | Power input | Accepts 1.7–5.25V; requires 0.47µF ceramic capacitor placed within 2mm for stability and noise rejection. |
| GND (Pin 1) | Ground reference | Low-impedance return path; must connect to solid ground plane to minimize dropout and noise coupling. |
| VOUT (Pin 2) | Regulated output | Delivers 2.85V ±1%; no internal discharge - external bleed resistor needed if rapid VOUT decay required. |
| EN (Not present) | Enable control | Not implemented in SR package - device is permanently enabled; EN functionality only available in SOT25 and DFN variants. |
Key Features
| Feature | Design Value |
|---|---|
| High PSRR | 75dB @ 1kHz - maintains clean 2.85V rail despite ripple on shared input bus from buck converters. |
| Ultra-low noise | 60µVrms broadband noise - preserves SNR in analog signal chains like audio codecs or RF receivers. |
| Tight output accuracy | ±1% over temperature - eliminates need for post-regulation trimming in production calibration. |
| Low IQ operation | 35µA quiescent current - reduces standby power loss by >50% vs. legacy LDOs in always-on IoT nodes. |
| Wide input range | 1.7V–5.25V - supports direct connection to Li-ion, LiPo, or USB 5V sources without pre-regulation. |
Applications
| RF Power Amplifier Bias | Camera Sensor Core Supply |
|---|---|
Use Scenario: Providing stable 2.85V bias to GaAs pHEMT or SiGe HBT RF power amplifiers in 4G/5G modules. IC Role / Device Role / Timing Role: Low-noise, high-PSRR LDO delivering clean DC bias independent of PA switching transients. Use Value: Prevents AM-to-PM distortion and EVM degradation by suppressing 100kHz–1MHz switching noise from adjacent DC/DC converters. | Use Scenario: Powering CIS/CMOS image sensor core logic and analog front-end in smartphone rear cameras. IC Role / Device Role / Timing Role: Primary 2.85V supply for pixel array readout and ADC reference, requiring sub-1% voltage stability. Use Value: Ensures consistent dark current and gain linearity across temperature, reducing fixed-pattern noise in raw image data. |
| Wireless Adapter SoC Core | Portable Media Player Audio Codec |
Use Scenario: Supplying 2.85V core voltage to Wi-Fi/BT combo SoCs in USB dongles and embedded modules. IC Role / Device Role / Timing Role: Main regulator for digital baseband and RF interface blocks during burst-mode packet transmission. Use Value: Maintains timing margin during 150mA load steps with <50µs recovery, preventing packet corruption or retransmission. | Use Scenario: Delivering ultra-low-noise 2.85V to stereo audio DACs and headphone amplifiers in portable media players. IC Role / Device Role / Timing Role: Analog supply rail decoupled from noisy digital subsystems via high PSRR and low RMS noise. Use Value: Achieves >105dB SNR and <0.002% THD+N by eliminating power-supply-induced jitter and harmonic distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2802E/TO | 2.8V fixed output, 250mA rating, 6µA IQ, but only 60dB PSRR at 1kHz and 120µVrms noise. | Lacks RF-grade noise/PSRR performance; suitable for digital-only loads, not sensitive analog/RF circuits. | Select when ultra-low IQ dominates requirements and RF/audio noise sensitivity is absent. |
| Torex XC6206P282MR-G | 2.8V output, ±2% accuracy, 100mA max, 1.0µA IQ, but no enable pin and 50dB PSRR at 1kHz. | Lower accuracy and PSRR limit use to non-critical digital I/O rails; no EN support restricts power sequencing. | Choose only for cost-sensitive, low-current, non-EN applications where precision and noise are secondary. |
Compared with MCP1700-2802E/TO and XC6206P282MR-G, the AP7315-285SR-7 provides superior RF system integrity through its 75dB PSRR and 60µVrms noise-critical for maintaining EVM in 5G NR and SNR in high-resolution audio-while retaining competitive quiescent current and thermal robustness in SOT23.
Availability
AP7315-285SR-7 is available at Aetrix Electronics and suitable for RF power amplifier bias, camera sensor core supply, wireless adapter SoC core, and portable media player audio codec applications requiring stable component supply, long-term manufacturability, and RoHS-compliant sourcing.
Supply support for AP7315-285SR-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 solutions for power management, signal integrity, and connectivity applications.
The AP7315 product line targets portable and battery-powered systems demanding ultra-low noise, high PSRR, and minimal footprint-designed specifically for RF, imaging, and audio subsystems where power rail purity directly impacts signal fidelity.
FAQ
What is the thermal resistance (θJA) of the AP7315-285SR-7 in SOT23-3?
The AP7315-285SR-7 has a junction-to-ambient thermal resistance of 250°C/W on a standard JEDEC 2-layer board (1oz copper, 2in × 2in). With a 25mm² thermal pad connected to a solid ground plane, θJA improves to ≤180°C/W, enabling 150mA continuous operation at +85°C ambient.
Does the AP7315-285SR-7 include output discharge functionality?
No. The AP7315-285SR-7 is the non-discharge variant (no 'D' suffix); it lacks an internal discharge FET. When disabled, VOUT remains floating and decays only via external load or PCB leakage. For active discharge, select AP7315D-285SR-7 or use an external MOSFET switch.
Can the AP7315-285SR-7 operate with ceramic output capacitors smaller than 0.47µF?
Yes-stability is guaranteed with ≥0.47µF ceramic capacitors (X5R/X7R, 6.3V rating). Capacitors as low as 0.22µF may work in low-noise, low-transient applications, but are not characterized per datasheet; full specification compliance requires 0.47µF minimum.
What is the maximum allowable input voltage for continuous operation?
The absolute maximum input voltage is 6.0V, but recommended continuous operation is limited to 5.25V per datasheet specifications. Exceeding 5.25V risks exceeding power dissipation limits and degrading long-term reliability-even at light loads-due to increased dropout-related heating.
AP7315-285SR-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- 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):
- 2.85V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.29V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 60 µA
- Current - Supply (Max):
- 100 µA
- PSRR:
- 75dB (1kHz)
- Control Features:
- -
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
AP7315-285SR-7 FAQ
1.How can I place an order for AP7315-285SR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7315-285SR-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 AP7315-285SR-7 reliable?
The price and inventory of AP7315-285SR-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7315-285SR-7 is usually 5 days.
3.What payment methods are accepted for AP7315-285SR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315-285SR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7315-285SR-7?
AP7315-285SR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7315-285SR-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 AP7315-285SR-7?
For technical support, including AP7315-285SR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315-285SR-7 requirements.
6.How does Aetrix verify that AP7315-285SR-7 is sourced from the original manufacturer or authorized distributors?
All AP7315-285SR-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 AP7315-285SR-7 meets industry standards.
7.What is the process for return or replacement of AP7315-285SR-7?
All AP7315-285SR-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315-285SR-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 AP7315-285SR-7 part is unused and in its original packaging.
Return procedure for AP7315-285SR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7315-285SR-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…
