LTC4402-1EMS8#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LTC4402-1EMS8#PBF is a multiband RF power controller and detector IC from Analog Devices designed to regulate transmit power in mobile handsets and wireless data cards across multiple frequency bands. It integrates an RF power detector and control loop driver in a compact 8-pin MSOP package to enable precise closed-loop power control. The device targets GSM, CDMA, and WCDMA RF front-end modules where accurate transmit power management is required over temperature and battery voltage variation.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LTC4402-1EMS8#PBF Datasheet PDF
- Category
- Integrated Circuit
- 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 LTC4402-1EMS8#PBF?
- Multiband RF power detection and control loop in a single 8-pin MSOP package
- Closed-loop transmit power regulation compensates for temperature and supply voltage drift
- Supports GSM, CDMA, and WCDMA frequency bands for multi-standard handset designs
- Compact thin-profile MSOP-8 package enables dense RF front-end PCB layouts
- Integrated detector and driver reduce external component count compared to discrete RF control circuits
What is LTC4402-1EMS8#PBF used for?
The LTC4402-1EMS8#PBF is used in the RF front-end of GSM, CDMA, and WCDMA mobile handsets to form a closed-loop transmit power control system that maintains accurate output power over varying battery voltages from 3.0 V to 4.2 V and temperatures from -40°C to +85°C. Wireless data cards and portable LTE modems employ it to meet regulatory transmit power masks and to minimize battery drain by preventing over-driving the power amplifier. It also suits base-station small-cell transmitters and test equipment where repeatable RF output power across multiple frequency bands is critical.
What are the specifications of LTC4402-1EMS8#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| YTEOL | 0 |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Nom | 3.6V |
| Surface Mount | YES |
| Technology | CMOS |
| Telecom IC Type | TELECOM CIRCUIT |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | MATTE TIN |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
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 LTC4402-1EMS8#PBF datasheet?
LTC4402-1EMS8#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC4402-1EMS8#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Over what frequency range does the LTC4402-1EMS8#PBF operate for multiband RF power control?
The LTC4402-1EMS8#PBF is designed for multiband operation covering cellular frequency bands including the 850 MHz, 900 MHz, 1800 MHz, and 1900 MHz GSM bands as well as CDMA and WCDMA bands up to approximately 2.1 GHz. The integrated RF power detector responds to input power levels across these bands, allowing a single IC to serve as the control element in a closed-loop power amplifier gain-control circuit for handsets that must support 2G and 3G standards simultaneously without requiring separate detector ICs for each band.
How does closed-loop RF power control with the LTC4402-1 benefit battery life in a mobile handset compared to open-loop approaches?
In open-loop transmit power control, a handset may over-drive the power amplifier by 1 dB to 3 dB to guarantee minimum output power across temperature and supply voltage corners, wasting up to twice the required DC input power. The LTC4402-1's closed-loop architecture continuously measures actual RF output power via its integrated detector and adjusts the PA control voltage to hit the target level within ±0.5 dB. This precision reduces average PA current draw by 15% to 25% in typical GSM or WCDMA call scenarios, directly extending talk time on a 3.7 V lithium-ion battery.
What is the package footprint of the LTC4402-1EMS8#PBF MSOP-8, and how does it fit within a compact RF front-end module?
The LTC4402-1EMS8#PBF uses a thin-profile shrink-pitch MSOP-8 package measuring approximately 3 mm × 3 mm with 0.65 mm lead pitch. This is roughly 40% smaller in area than a standard SOIC-8, making it compatible with the tightly spaced RF component regions of a cellular handset PCB where power amplifier modules, SAW filters, and antenna switches occupy adjacent 3 mm to 5 mm grid positions. The 260°C peak reflow rating ensures compatibility with standard lead-free SAC305 solder paste assembly used in smartphone manufacturing lines.
Which alternative Analog Devices RF power controller ICs can replace the LTC4402-1 if the part reaches end-of-life status?
The LTC4402-1 has a YTEOL of 0, indicating it may be at or near end-of-life. Engineers seeking a replacement should evaluate the LTC5526, which is a broadband RMS power detector covering 100 MHz to 6 GHz, or the ADL5902, an RMS-responding power detector from 50 MHz to 9 GHz with a 62 dB dynamic range. Both alternatives operate from a 3.3 V supply and are available in compact 4 mm × 4 mm or 3 mm × 3 mm LFCSP packages. For a direct closed-loop controller replacement in a legacy GSM design, re-evaluating the complete power control architecture against current ADI or Qorvo RF front-end module solutions may also yield a more integrated single-chip path.
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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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