ADP172ACBZ-1.8-R7 Analog Devices Integrated Circuit (Other) In Stock
The ADP172ACBZ-1.8-R7 is a 300 mA ultralow-dropout CMOS linear regulator fixed at 1.8 V output. It operates from 1.6 V to 3.6 V input with only 50 mV typical dropout voltage. Housed in a 4-ball WLCSP package, it is ideal for space-constrained portable and wearable power rails.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- ADP172ACBZ-1.8-R7 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5625(MOQ 100)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultralow 50 mV typical dropout voltage enabling operation near output rail for maximum battery runtime
- Fixed 1.8 V output from 1.6 V to 3.6 V input covering single-cell Li-ion battery discharge curve
- Tiny 4-ball WLCSP package for sub-1 mm² board footprint in ultra-compact wearable designs
Applications
The ADP172ACBZ-1.8-R7 is ideal for powering 1.8 V I/O rails in smartphones, fitness trackers, and wireless sensor nodes where board area is critical. Its ultralow 50 mV dropout allows near-full utilization of a single-cell Li-ion battery's discharge range down to 1.8 V. Memory devices, RF transceivers, and MEMS sensors that require a clean 1.8 V supply benefit from its low quiescent current and stable CMOS output.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | CB-4-4 |
| YTEOL | 10 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.1V |
| Dropout Voltage1-Nom | 0.05V |
| Input Voltage Absolute-Max | 4V |
| Input Voltage-Max | 3.6V |
| Input Voltage-Min | 1.6V |
| JESD-30 Code | R-PBGA-B4 |
| JESD-609 Code | e1 |
| Line Regulation-Max | 0.009% |
| Load Regulation-Max | 0.027% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.3A |
| Output Voltage1-Max | 1.827V |
| Output Voltage1-Min | 1.746V |
| Output Voltage1-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | BGA4,2X2,20 |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Packing Method | TR, 7 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Tin/Silver/Copper (Sn/Ag/Cu) |
| Terminal Form | BALL |
| Terminal Pitch | 0.5mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 3% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How low can the input voltage drop while ADP172ACBZ-1.8-R7 still maintains a regulated 1.8 V output?
With a typical dropout of only 50 mV, ADP172ACBZ-1.8-R7 maintains regulation when the input is as low as 1.85 V, allowing deep discharge of a single-cell Li-ion battery down to approximately 3.0 V, well below the 3.6 V nominal, maximizing usable capacity in wearable devices.
What output current capacity does ADP172ACBZ-1.8-R7 provide for peripheral power budgets?
ADP172ACBZ-1.8-R7 supplies up to 300 mA at 1.8 V, sufficient to power a Bluetooth Low Energy SoC drawing 15 mA in TX mode plus a MEMS accelerometer at 0.5 mA and retain 284 mA margin for burst current demands during sensor data transfers.
How does the 4-ball WLCSP package of ADP172ACBZ-1.8-R7 benefit compact PCB layouts?
The 4-ball WLCSP package measures approximately 0.8 mm x 0.8 mm with a 0.4 mm ball pitch, occupying less than 1 mm² of board area. This enables placement directly adjacent to the load IC, reducing trace inductance and improving transient response at 1.8 V compared to SOT-23 packaged alternatives.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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