My Inquiry
My Account
Analog Devices Inc. ADP2108AUJZ-2.5-R7
- Part No.:
- ADP2108AUJZ-2.5-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
ADP2108AUJZ-2.5-R7.pdf
- Description:
- IC REG BUCK 2.5V 600MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,097
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADP2108AUJZ-2.5-R7 from Analog Devices is a fixed-output, 2.5 V, 600 mA synchronous step-down DC-DC converter with 3 MHz switching frequency, 2.3 V to 5.5 V input range, and internal compensation. It delivers high efficiency (up to 95%) in portable power rails for baseband processors and RF modules in wireless handsets.
For engineers reviewing the ADP2108AUJZ-2.5-R7 datasheet, ADP2108AUJZ-2.5-R7 pinout, ADP2108AUJZ-2.5-R7 application, or ADP2108AUJZ-2.5-R7 equivalent, key selection criteria include light-load efficiency via power save mode, 100% duty cycle operation for low-dropout regulation, thermal shutdown at 150°C, and compatibility with tiny 0603/0805 external passives.
Technical Context
The ADP2108AUJZ-2.5-R7 employs a proprietary current-mode PWM control architecture operating at 3 MHz nominal frequency, enabling fast line and load transient response. Its dual-mode operation-PWM at medium-to-heavy loads and hysteretic power save mode below ~80 mA-optimizes efficiency across the full 0–600 mA output range.
It integrates both PFET and NFET switches with on-resistances of 320 mΩ and 300 mΩ (WLCSP), supports 100% duty cycle for ultra-low dropout, and includes undervoltage lockout (2.15 V falling threshold), soft start, and thermal shutdown with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% accuracy in PWM mode; ensures stable core voltage for 2.5 V logic domains. |
| Max Output Current | 600 mA across full 2.3–5.5 V input range; supports moderate-power digital ICs without external boost. |
| Switching Frequency | 3.0 MHz ±0.5 MHz; enables use of sub-1 µH inductors and <10 µF ceramic capacitors for compact footprint. |
| Quiescent Current | 18 µA typical; extends battery life in always-on subsystems like GPS receivers or sensor hubs. |
| Shutdown Current | 0.2 µA maximum; allows deep-sleep states in portable devices with minimal leakage drain. |
| Input Voltage Range | 2.3 V to 5.5 V; compatible with single Li+/Li-poly, USB 5 V, or multi-cell alkaline/NiMH sources. |
| Efficiency Peak | 95% at mid-load; reduces thermal load in sealed enclosures and improves runtime in handhelds. |
Pinout & Package
ADP2108AUJZ-2.5-R7 is packaged in a 5-ball WLCSP (Wafer-Level Chip Scale Package) with 0.4 mm pitch and 1.0 mm × 1.0 mm footprint, optimized for space-constrained mobile PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | Supplies PFET high-side switch; requires ≥2.2 µF ceramic bypass capacitor placed adjacent to ball A1. |
| GND | Ground Reference | Common return for input/output capacitors and feedback network; connects to PCB ground plane under package. |
| SW | Switch Node | Drain node of integrated PFET/NFET; drives external inductor; sensitive to layout parasitics and EMI. |
| EN | Enable Control | Logic-level input (1.2 V high threshold); asserts soft start on rising edge; pulls device into <1 µA shutdown when low. |
| FB | Feedback Input | Connects directly to regulated output; internal resistor divider sets 2.5 V output-no external resistors required. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diode, reducing conduction loss and board area in 2.5 V buck designs. |
| Internal compensation | Removes need for external compensation network-simplifies design and improves stability margin across temperature. |
| Power save mode | Automatically engages below ~80 mA load, reducing switching frequency and quiescent current to sustain >85% efficiency at microamp loads. |
| 100% duty cycle operation | Maintains regulation down to VIN − VDROP ≈ 2.55 V, critical for Li+ battery discharge tail-end performance. |
| Thermal shutdown + hysteresis | Shuts down at 150°C junction temperature and re-enables only after cooling to ≤130°C-prevents thermal runaway in sealed assemblies. |
Applications
| Wireless Handset Power Management | Digital Camera Core Supply |
|---|---|
Use Scenario: Powers baseband processor I/O and memory interface in GSM/UMTS smartphones during active call or data session. IC Role / Device Role / Timing Role: Primary 2.5 V point-of-load regulator delivering up to 600 mA with <550 µs startup time and fast transient recovery. Use Value: Enables single-cell Li+ operation while maintaining PSRR >40 dB at 100 kHz and ripple <15 mVpp under dynamic load. | Use Scenario: Supplies image signal processor (ISP) core voltage in compact digital cameras with flash LED and auto-focus motor. IC Role / Device Role / Timing Role: Fixed 2.5 V buck converter with 100% duty cycle support for brownout resilience during battery sag under flash pulse. Use Value: Delivers clean, low-noise 2.5 V rail with <20 µV/√Hz output noise-critical for minimizing image sensor readout artifacts. |
| Portable Media Player Audio Codec | GPS Navigation Unit Baseband |
Use Scenario: Provides regulated 2.5 V supply to stereo audio DAC and headphone amplifier in MP3 players. IC Role / Device Role / Timing Role: Low-quiescent-current DC-DC converter supporting playback-only mode with <18 µA no-load draw. Use Value: Extends battery life by 12–18% versus LDO solutions while maintaining THD+N <−95 dB at 1 kHz full scale. | Use Scenario: Powers GPS baseband ASIC and RF front-end bias in automotive-grade portable navigation devices. IC Role / Device Role / Timing Role: High-efficiency 2.5 V regulator with −40°C to +125°C junction rating and UVLO at 2.15 V to prevent system hang during cold cranking. Use Value: Ensures reliable cold-start operation and maintains <±1.5% output accuracy over full automotive temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | 3 MHz, 2.5 V fixed, 600 mA; 18 µA IQ but no power save mode hysteresis spec; 0.5 µA shutdown. | Higher light-load efficiency not guaranteed; lacks explicit PSM entry/exit thresholds. | Prefer when lowest shutdown current is critical and thermal derating is managed externally. |
| RT8059GJ6 | 3 MHz, 2.5 V fixed, 600 mA; 25 µA IQ; includes integrated soft-start capacitor pin; no WLCSP option. | Requires external soft-start cap; TSOT23-6 only-larger footprint than ADP2108AUJZ-2.5-R7's WLCSP. | Choose when board layout allows TSOT23-6 and soft-start timing must be user-adjustable. |
Compared with TPS62231DRYR and RT8059GJ6, the ADP2108AUJZ-2.5-R7 uniquely combines WLCSP packaging, tightly specified 80/85 mA PSM transition thresholds, and guaranteed 95% peak efficiency-all in a single-chip solution requiring only three external passives.
Availability
ADP2108AUJZ-2.5-R7 is available at Aetrix Electronics and suitable for wireless handsets, portable media players, and GPS navigation units requiring stable component supply with long-term manufacturability and consistent parametric performance.
Supply support for ADP2108AUJZ-2.5-R7 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADP2108 series was designed specifically for space- and power-constrained portable electronics, delivering high-efficiency, low-noise, and thermally robust DC-DC conversion in wafer-level packages.
FAQ
What is the output voltage tolerance of the ADP2108AUJZ-2.5-R7 under full load and temperature?
The ADP2108AUJZ-2.5-R7 guarantees ±2% output voltage accuracy in PWM mode across −40°C to +125°C junction temperature and full 2.3–5.5 V input range. At 25°C ambient and 3.6 V input, typical deviation is ±0.5%, and worst-case drift remains within ±2.5% including power save mode operation.
Does the ADP2108AUJZ-2.5-R7 require external compensation components?
No, the ADP2108AUJZ-2.5-R7 features fully internal compensation. Its control loop is factory-tuned for stability with standard 1 µH inductors and 4.7–10 µF ceramic output capacitors-no external RC networks or feedforward capacitors are needed for robust operation.
Can the ADP2108AUJZ-2.5-R7 operate with a 2.4 V input voltage?
Yes-the ADP2108AUJZ-2.5-R7 supports input voltages as low as 2.3 V. At 2.4 V input, it enters 100% duty cycle mode to maintain 2.5 V output, provided load current stays below ~150 mA. Undervoltage lockout releases at 2.15 V falling threshold, ensuring controlled shutdown before battery depletion.
What is the thermal resistance (θJA) of the ADP2108AUJZ-2.5-R7 in its WLCSP package?
The ADP2108AUJZ-2.5-R7 in 5-ball WLCSP has a JEDEC-standard θJA of 105°C/W. This value assumes mounting on a 2-layer PCB with 2S2P copper pattern; actual thermal performance improves with internal ground/power planes and thermal vias beneath the GND ball.
How does the ADP2108AUJZ-2.5-R7 handle short-circuit conditions?
Under hard output short, the ADP2108AUJZ-2.5-R7 activates frequency foldback-reducing switching frequency to ~1.5 MHz-to limit inductor current slew rate and prevent thermal runaway. Combined with peak current limiting (1100–1500 mA) and thermal shutdown at 150°C, this provides robust fault protection without latch-off.
ADP2108AUJZ-2.5-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 600mA
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
ADP2108AUJZ-2.5-R7 FAQ
1.How can I place an order for ADP2108AUJZ-2.5-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2108AUJZ-2.5-R7 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 ADP2108AUJZ-2.5-R7 reliable?
The price and inventory of ADP2108AUJZ-2.5-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP2108AUJZ-2.5-R7 is usually 5 days.
3.What payment methods are accepted for ADP2108AUJZ-2.5-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2108AUJZ-2.5-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2108AUJZ-2.5-R7?
ADP2108AUJZ-2.5-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2108AUJZ-2.5-R7 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 ADP2108AUJZ-2.5-R7?
For technical support, including ADP2108AUJZ-2.5-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2108AUJZ-2.5-R7 requirements.
6.How does Aetrix verify that ADP2108AUJZ-2.5-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2108AUJZ-2.5-R7 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 ADP2108AUJZ-2.5-R7 meets industry standards.
7.What is the process for return or replacement of ADP2108AUJZ-2.5-R7?
All ADP2108AUJZ-2.5-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2108AUJZ-2.5-R7, 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 ADP2108AUJZ-2.5-R7 part is unused and in its original packaging.
Return procedure for ADP2108AUJZ-2.5-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADP2108AUJZ-2.5-R7 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
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…
