LTC3552EDHC-1#TRPBF Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
The LTC3552EDHC-1#TRPBF is an Analog Devices integrated Li-Ion battery charger plus dual synchronous buck converter in a 16-pin DFN package, combining a linear charger and 2 switching regulators in a single 3-channel power management IC. Available in stock worldwide.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LTC3552EDHC-1#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.5200(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC3552EDHC-1#TRPBF?
- Integrated linear Li-Ion battery charger with programmable charge current plus dual synchronous step-down converters in one 16-pin DFN
- 3-channel power management architecture reducing external component count versus discrete charger plus two buck regulator solutions
- Adjustable threshold and compact R-PDSO-N16 no-lead package enabling dense PMU layouts for portable consumer and IoT devices
What is LTC3552EDHC-1#TRPBF used for?
The LTC3552EDHC-1#TRPBF is designed for handheld and portable devices that need USB or wall-adapter Li-Ion charging alongside regulated power rails for a processor and peripheral subsystem. Its dual synchronous buck converters independently regulate two output voltages, such as 1.8 V for a core processor and 3.3 V for wireless radio, from the battery voltage within a single compact IC. The device is also used in wearables and IoT sensor nodes where minimizing PMU chip count and PCB footprint is critical to fitting a full power solution in under 50 mm².
What are the specifications of LTC3552EDHC-1#TRPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1706 |
| YTEOL | 10 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | LINEAR BATTERY CHARGER |
| JESD-30 Code | R-PDSO-N16 |
| JESD-609 Code | e3 |
| Number of Channels | 3 |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 8V |
| Supply Voltage-Min (Vsup) | 4.25V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Where can I find the LTC3552EDHC-1#TRPBF datasheet?
LTC3552EDHC-1#TRPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC3552EDHC-1#TRPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What functions does LTC3552EDHC-1#TRPBF integrate, and how does it reduce BOM in a portable design?
The LTC3552EDHC-1#TRPBF combines a linear Li-Ion battery charger and 2 synchronous buck converters in one 16-pin DFN, replacing 3 separate ICs. For a wearable device needing USB charging, a 1.8 V CPU rail, and a 3.3 V radio rail, this single-chip solution can reduce the power section BOM by 15 to 20 passive components compared to discrete alternatives.
For a USB-charged wearable, how does the linear charger in LTC3552EDHC-1#TRPBF handle charge current programming?
The charger supports adjustable charge current set by an external resistor, allowing designers to program charging rates from tens of milliamps for small 100 mAh cells up to higher rates for larger packs. USB input current compliance can be limited to 500 mA for USB 2.0 compatibility, protecting the host port while charging a Li-Ion cell at up to 350 mA concurrently with running the system load.
How do the dual synchronous buck converters in LTC3552EDHC-1#TRPBF support a dual-rail processor plus radio system-on-module design?
The 2 independent synchronous step-down converters each regulate a separate output voltage, enabling one rail at 1.8 V for the application processor core and a second at 3.3 V for Bluetooth or Wi-Fi radio circuitry. Synchronous rectification improves efficiency to over 85% at moderate loads compared to non-synchronous designs, extending battery runtime by 10% to 15% in typical IoT node profiles.
What package does LTC3552EDHC-1#TRPBF use, and what PCB layout area does it require for a complete power section?
The device uses a 16-pin DFN (R-PDSO-N16) measuring approximately 3 mm x 5 mm. A complete power section including the charger, dual buck converters, and all passives typically fits within 50 mm² of PCB area when using 1 µH inductors in 2016 packages and 10 µF ceramic bulk caps, making it well suited for wearables and compact IoT modules with tight layout constraints.
Is LTC3552EDHC-1#TRPBF RoHS-compliant, and what does its JESD-609 e3 code indicate for solder process selection?
The Pbfree Code for this part is listed as No, indicating it uses a non-lead-free solder finish per the manufacturer package code 05-08-1706, and its JESD-609 code e3 corresponds to a SnPb (tin-lead) solder plating. Assembly lines using lead-free SAC305 solder paste should confirm compatibility or source the TRPBF lead-free variant; the peak reflow temperature for SnPb processes is typically 235°C versus 260°C for lead-free.
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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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