My Inquiry
My Account
Diodes Incorporated AP7115-29WG-7
- Part No.:
- AP7115-29WG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7115-29WG-7.pdf
- Description:
- IC REG LINEAR 2.85V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:3,515
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7115-29WG-7 from Diodes Incorporated is a 150mA fixed-output (2.9V) low-dropout linear regulator in SOT25 package, featuring 200mV dropout at full load, ±2% output voltage accuracy, and 50µA quiescent current. It integrates current-limit, thermal shutdown, and enable control, making it suitable for GSM/GPRS handsets and battery-powered peripherals requiring stable low-power voltage regulation.
For engineers reviewing the AP7115-29WG-7 datasheet, AP7115-29WG-7 pinout, AP7115-29WG-7 application, or AP7115-29WG-7 equivalent, key selection criteria include dropout performance at 150mA, EN-controlled shutdown behavior, BP bypass capacitor requirements, and thermal resistance (θJA = 200°C/W) under real PCB layout conditions.
Technical Context
The AP7115-29WG-7 uses a PMOS pass element with bandgap reference and error amplifier feedback to regulate output voltage. Its enable input (EN) provides active-high logic control, while the BP pin accepts a 0.1µF ceramic capacitor to reduce output noise by stabilizing the internal reference.
Protection circuitry includes foldback current limiting (200–250mA typ.), thermal shutdown activation at +150°C, and automatic recovery after junction cooling by ~30°C. Input voltage range is 2.5V to 5.5V, supporting single-cell Li-ion and dual-cell alkaline systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.9V ±2% - ensures stable core/peripheral rail for 2.8–3.0V logic interfaces. |
| Dropout Voltage | 200mV max at 150mA - enables regulation down to VIN = 3.1V, critical for fading battery operation. |
| Quiescent Current | 50µA typ. - minimizes standby power loss in always-on mobile subsystems. |
| PSRR | 70dB at 1kHz - suppresses switching noise from adjacent DC/DC converters in mixed-power designs. |
| Thermal Shutdown | Activates at +150°C junction temperature - prevents permanent damage during sustained overload or poor heatsinking. |
| Enable Threshold | VIH,EN ≥ 2.0V, VIL,EN ≤ 0.7V - compatible with 1.8V/3.3V GPIO without level-shifting. |
| Bandgap Bypass | 0.1µF capacitor on BP pin - reduces output voltage noise to 50µVrms (10Hz–100kHz). |
Pinout & Package
SOT25 (5-pin small-outline transistor) package with exposed pad not electrically connected; JEDEC-compliant footprint, 200°C/W junction-to-ambient thermal resistance on standard FR-4 board with minimum copper pad layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Input voltage supply | Accepts 2.5–5.5V; requires 1µF ceramic decoupling to GND for stability. |
| 2 GND | Power ground reference | Common return path for input/output currents and BP capacitor; must connect to low-impedance ground plane. |
| 3 EN | Enable control input | Active-high logic: drives regulator ON when ≥2.0V; pulls to GND for <1µA shutdown current. |
| 4 BP | Bandgap reference bypass | Connects 0.1µF X7R ceramic to GND to filter reference noise and improve PSRR. |
| 5 OUT | Regulated output | Delivers 2.9V ±2% at up to 150mA; requires ≥1µF ceramic output capacitor for transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout architecture | 200mV at 150mA enables >93% efficiency at VIN = 3.1V, extending battery runtime in portable devices. |
| Integrated protection | Current limit (200–250mA), thermal shutdown (+150°C), and short-circuit tolerance prevent field failures without external components. |
| Ultra-low IQ | 50µA quiescent current allows >1-year shelf life in coin-cell–powered IoT sensors with periodic wake-up. |
| High PSRR & low noise | 70dB PSRR at 1kHz and 50µVrms output noise support clean analog/RF supply rails in cellular front-ends. |
| Green packaging | SOT25 package is fully RoHS-compliant, lead-free, halogen-free (<900ppm Br/Cl), and antimony-free per Diodes Inc. definition. |
Applications
| GSM/GPRS Handset Power Rail | Battery-Powered Wireless Sensor Node |
|---|---|
|
Use Scenario: Supplies 2.9V to baseband processor I/O and RF transceiver bias circuits in compact cellular modules. IC Role / Device Role / Timing Role: Primary LDO for noise-sensitive analog sections; EN pin synchronized to modem sleep/wake cycles. Use Value: 50µA IQ extends talk time; 200mV dropout maintains regulation until battery drops to 3.1V, maximizing usable capacity. |
Use Scenario: Powers ultra-low-power microcontroller and BLE radio in coin-cell–operated environmental monitors. IC Role / Device Role / Timing Role: Always-on LDO with EN controlled by MCU to gate power to peripheral sensors during measurement bursts. Use Value: Sub-1µA shutdown current preserves battery over multi-year deployments; ±2% accuracy ensures ADC reference stability. |
| CD-ROM/DVD Drive Logic Supply | Notebook USB Peripheral Regulator |
|
Use Scenario: Provides clean 2.9V rail to servo motor controller IC and laser diode driver in optical storage drives. IC Role / Device Role / Timing Role: Secondary LDO decoupling noisy switching supplies; BP capacitor suppresses high-frequency ripple. Use Value: 70dB PSRR rejects noise from spindle motor drivers; thermal shutdown prevents latch-up during mechanical stall events. |
Use Scenario: Regulates 2.9V for USB 2.0 PHY and hub controller in compact docking stations and port replicators. IC Role / Device Role / Timing Role: Local point-of-load regulator with fast transient response to handle USB enumeration current surges. Use Value: 150mA output supports multiple downstream ports; 50µVrms noise avoids USB packet errors during high-speed data transfer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2902E/TT | 300mV dropout at 250mA, 1.6µA IQ, no EN or BP pins | Lacks enable control and noise-reduction bypass; suited only for always-on, ultra-low-IQ use cases | Select when shutdown functionality is unnecessary and lowest possible standby current is mandatory |
| AP7315-29SAG-7 | Same 2.9V output, 250mA rating, 1.5µA IQ, but adds integrated soft-start and improved PSRR (75dB) | Designed for new designs; replaces AP7115 where lower IQ and enhanced transient immunity are required | Prefer for new designs-Diodes explicitly marks AP7115 as "Not Recommended for New Design" in datasheet |
Compared with MCP1700T-2902E/TT, AP7115-29WG-7 offers enable control and BP noise filtering at higher IQ; compared with AP7315-29SAG-7, it trades 48.5µA higher quiescent current for proven field reliability in legacy battery-powered platforms.
Availability
AP7115-29WG-7 is available at Aetrix Electronics and suitable for GSM/GPRS handsets, wireless sensor nodes, CD-ROM/DVD drive logic supplies, and notebook USB peripheral regulators requiring stable component supply across extended production lifecycles.
Supply support for AP7115-29WG-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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The AP7115 belongs to Diodes' precision LDO regulator product line, engineered specifically for space-constrained, battery-operated consumer and communications equipment demanding low dropout, low IQ, and robust protection.
FAQ
What is the maximum input voltage for AP7115-29WG-7?
The absolute maximum input voltage is 5.5V. Operation above this level risks permanent damage to the internal PMOS pass device and bandgap reference circuitry. The recommended operating range is 2.5V to 5.5V, with dropout performance optimized between 3.1V and 5.5V for the 2.9V output.
Can the BP pin be left unconnected?
No. Leaving the BP pin floating degrades output voltage noise performance and may cause instability. A 0.1µF X7R ceramic capacitor must be placed between BP and GND, as specified in the datasheet's Application Note section, to maintain 50µVrms noise and ensure loop stability across load and temperature.
Is AP7115-29WG-7 pin-compatible with AP7315-29SAG-7?
Yes-both use identical SOT25 pinout (IN, GND, EN, BP, OUT). However, AP7315 includes soft-start and improved PSRR, while AP7115 lacks soft-start and has higher quiescent current. Electrical compatibility exists, but functional differences require validation in timing-critical applications.
Does AP7115-29WG-7 require an input capacitor?
Yes-a minimum 1µF ceramic capacitor is required between IN and GND. The datasheet states there are no ESR requirements, but capacitor tolerance and temperature coefficient must be selected to maintain stability across the full operating temperature range (−40°C to +85°C).
AP7115-29WG-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.85V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7115-29WG-7 FAQ
1.How can I place an order for AP7115-29WG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7115-29WG-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 AP7115-29WG-7 reliable?
The price and inventory of AP7115-29WG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7115-29WG-7 is usually 5 days.
3.What payment methods are accepted for AP7115-29WG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7115-29WG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7115-29WG-7?
AP7115-29WG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7115-29WG-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 AP7115-29WG-7?
For technical support, including AP7115-29WG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7115-29WG-7 requirements.
6.How does Aetrix verify that AP7115-29WG-7 is sourced from the original manufacturer or authorized distributors?
All AP7115-29WG-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 AP7115-29WG-7 meets industry standards.
7.What is the process for return or replacement of AP7115-29WG-7?
All AP7115-29WG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7115-29WG-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 AP7115-29WG-7 part is unused and in its original packaging.
Return procedure for AP7115-29WG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7115-29WG-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…
