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STMicroelectronics LNBP16SP-TR
- Part No.:
- LNBP16SP-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Special Purpose Regulators
- Package:
- PowerSO-10 Exposed Bottom Pad
- Datasheet:
-
LNBP16SP-TR.pdf
- Description:
- IC REG CONV RECVRS 1OUT 10PWRSO
- Quantity:
- Payment:
- Shipping:
Inventory:344
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Product details
Overview
LNBP16SP-TR from STMicroelectronics is a monolithic linear voltage regulator in PowerSO-10 package, designed to supply and control two LNB downconverters via coaxial cable in satellite receivers. It delivers logic-selectable 13 V or 18 V (typ.) outputs per port, features factory-trimmed 22 kHz tone generation (±2 kHz tolerance), dynamic overload protection with 4.7 µF CEXT timing, and dual supply inputs (VCC1 ≥16 V, VCC2 ≥23 V) for optimized dissipation.
For engineers reviewing the LNBP16SP-TR datasheet, LNBP16SP-TR pinout, LNBP16SP-TR application, or LNBP16SP-TR equivalent, key selection criteria include LNB port voltage selection (VSEL/LLC), stand-by mode backward current limit (≤3 mA), DiSEqC™-compatible tone enable (ENT), and thermal shutdown at 150 °C - all critical for dual-port analog/digital satellite receiver designs.
Technical Context
The LNBP16SP-TR integrates dual-output linear regulation with parallel digital control logic (EN, OSEL, VSEL, LLC, ENT) to select between LNBA and LNBB ports and set output voltages of 13 V, 14 V, 18 V, or 19 V (typ.). Its internal switch automatically selects VCC1 (for ≤14 V outputs) or VCC2 (for ≥18 V outputs) to minimize power loss.
It implements dynamic overcurrent protection using an external capacitor on CEXT to define off-time (toff ≈ 1100 ms with 4.7 µF), while OLF provides open-collector diagnostic flagging. The built-in 22 kHz oscillator starts rapidly to support DiSEqC™ burst coding, and EXTM enables analog modulation up to 40 kHz with 5 V/V gain and 400 Ω input impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 13 V or 18 V (typ.), adjustable to 14 V/19 V via LLC pin - enables coaxial cable drop compensation |
| Tone Frequency | 22 kHz (typ.), ±2 kHz factory trim - eliminates need for external tuning components in DiSEqC™ systems |
| Max Output Current | 650 mA (typ.) per port - supports standard LNB loads without external boost circuitry |
| Backward Current Limit | ≤3 mA (max) in stand-by (EN = LOW) - prevents interference when sharing coaxial lines across multiple receivers |
| Supply Inputs | VCC1: 15–25 V; VCC2: 22–25 V - dual-rail architecture reduces thermal stress during 13 V operation |
| Overload Protection | Dynamic cycling with toff = 1100 ms / ton = toff/15 (typ.) - limits average power dissipation under short-circuit |
| Thermal Shutdown | 150 °C junction temperature - protects die during sustained overload or poor heatsinking |
Pinout & Package
LNBP16SP-TR uses the PowerSO-10 surface-mount package (9.4 × 13.8 mm, 1.27 mm pitch), optimized for compact satellite receiver PCB layouts with thermal pad exposed on underside for heatsinking.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| VCC1 | Primary supply input | 15–25 V rail used for 13/14 V outputs; lower dissipation path vs. VCC2 |
| VCC2 | Secondary supply input | 22–25 V rail selected automatically for 18/19 V outputs; enables higher efficiency at elevated voltage |
| LNBA | Main LNB output port | Logic-selected 13/14/18/19 V output; connects to antenna port A; powered by MI in stand-by |
| VSEL | Voltage selection control | Logic input: LOW = 13/14 V, HIGH = 18/19 V - sets base output level before LLC compensation |
| EN | Enable/disable control | LOW = stand-by mode: disables both outputs and limits backward current to ≤3 mA |
| ENT | Tone enable input | Active-HIGH: activates internal 22 kHz oscillator for DiSEqC™ signaling without external crystal |
| CEXT | Overload timing capacitor | Connects to GND; 4.7 µF sets ~1200 ms protection cycle time - defines fault recovery behavior |
| OLF | Overload flag output | Open-collector signal: LOW indicates active overcurrent or thermal fault - drives MCU interrupt or LED |
| GND | Power and signal reference | Internally bonded to die frame; must be low-impedance connection for stability and thermal conduction |
Key Features
| Feature | Design Value |
|---|---|
| Dual LNB port control | Independent logic-selectable LNBA/LNBB outputs with shared VSEL/EN/ENT - enables single-chip dual-antenna management |
| Factory-trimmed 22 kHz oscillator | ±2 kHz accuracy at 22 kHz - eliminates calibration steps and external timing components for DiSEqC™ compliance |
| Cable length compensation | +1 V (typ.) boost via LLC pin - corrects coaxial voltage drop without redesigning supply rails |
| Bypass function for slave operation | Internal MI-to-LNBA switch activated in EN = LOW - allows master receiver to drive same coax line without conflict |
| Dynamic overload protection | Auto-cycling shutdown with user-defined toff via CEXT - sustains functionality under intermittent faults while limiting thermal stress |
Applications
| Dual-Port Satellite Receiver | Single-Dish Dual-Receiver System |
|---|---|
|
Use Scenario: Consumer-grade satellite set-top box with two independent antenna inputs (JA/JB) for simultaneous reception of different orbital positions. IC Role / Device Role / Timing Role: Primary LNB power controller and DiSEqC™ interface IC - regulates 13/18 V per port, modulates 22 kHz tone, and decodes port selection commands. Use Value: Eliminates need for discrete regulators and tone generators; reduces BOM count by 7+ components while supporting full DiSEqC™ 1.0/1.1 protocols. |
Use Scenario: Secondary satellite receiver sharing coaxial cabling with a master unit in multi-room installations. IC Role / Device Role / Timing Role: Slave-mode LNB controller - disables local regulation (EN = LOW), routes MI voltage to LNBA, and isolates its outputs to prevent bus contention. Use Value: Enables seamless integration into existing single-dish infrastructure without modifying master receiver hardware or firmware. |
| LNB Diagnostic-Enabled Receiver | Cost-Optimized Digital Satellite Tuner |
|
Use Scenario: Professional satellite field tester or installer tool requiring real-time LNB fault detection and reporting. IC Role / Device Role / Timing Role: Smart LNB power manager with diagnostic feedback - monitors overcurrent via OLF flag and reports thermal events to host MCU. Use Value: Provides actionable fault data (e.g., shorted LNB, overheating) instead of silent failure - reduces service call time by enabling remote diagnostics. |
Use Scenario: Entry-level DVB-S2 tuner module where board space and component count are constrained. IC Role / Device Role / Timing Role: Integrated LNB supply IC replacing discrete MOSFET + op-amp + oscillator solution - delivers regulated 13/18 V with tone in one PowerSO-10 package. Use Value: Reduces PCB area by >40% and assembly cost by eliminating 12 passives and 3 active devices while maintaining full functional compatibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LNB supply and control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LNBP15SP-TR | Omits LLC pin → no 1 V cable compensation; retains full 13/18 V selection, OLF, ENT, and CEXT-based protection | Suitable only for fixed-length coaxial runs (<15 m); lacks dynamic voltage adjustment for long-drop installations | Select when system uses standardized short cables and cost reduction outweighs flexibility needs. |
| LNBP20PD-TR | PowerSO-20 package with full pinout (OSEL, MI, EXTM, LLC); adds LNBB port control and external modulation capability | Supports bidirectional DiSEqC™ 2.x via EXTM; enables master/slave arbitration and auxiliary data overlay on coax | Choose for advanced multi-receiver networks requiring protocol extension beyond basic tone/voltage control. |
Compared with LNBP15SP-TR, LNBP16SP-TR adds cable-length compensation for robust long-run deployments; versus LNBP20PD-TR, it trades pin count and EXTM flexibility for smaller footprint and lower cost in fixed-configuration receivers.
Availability
LNBP16SP-TR is available at Aetrix Electronics and suitable for dual-antenna satellite receivers, DiSEqC™-enabled tuners, and LNB diagnostic instruments requiring stable component supply, consistent thermal performance, and long-term obsolescence mitigation.
Supply support for LNBP16SP-TR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing silicon solutions for automotive, industrial, and consumer markets since 1987.
The LNBP series targets satellite receiver system designers, delivering integrated LNB power, control, and DiSEqC™ interface functionality in compact PowerSO packages - balancing thermal efficiency, protocol compliance, and design simplicity.
FAQ
What is the maximum coaxial cable length supported by LNBP16SP-TR with LLC compensation enabled?
With LLC = HIGH, the output voltage increases by +1 V (typ.), compensating for voltage drop across up to 40 m of RG-6 coaxial cable at 500 mA load. This extends usable range beyond the ~25 m limit of uncompensated 13/18 V operation, verified per typical characteristics Figure 3 and Table 5 VO2/VO1 specs under load regulation.
How does the dynamic overload protection behave when CEXT = 4.7 µF is used?
With 4.7 µF on CEXT, the protection cycles with toff = 1100 ms (off-time) and ton = ~73 ms (on-time), totaling ~1173 ms per cycle. During toff, LNBA/LNBB are disabled and OLF goes LOW; during ton, outputs resume briefly to test for fault clearance - confirmed in Electrical Characteristics Table 5 and Figure 17.
Can LNBP16SP-TR operate with only VCC2 powered and VCC1 left unconnected?
Yes - powering only VCC2 (≥23 V) enables full 13/14/18/19 V operation, though efficiency drops slightly for 13/14 V outputs due to higher dropout. The internal switch still functions, and all specifications (including ΔVO and SVR) remain valid per Table 5 test conditions with VIN2 = 23 V.
Is the 22 kHz tone compatible with DiSEqC™ 2.0 and higher bidirectional protocols?
No - the LNBP16SP-TR's tone generator supports only unidirectional DiSEqC™ 1.0/1.1 command transmission. Bidirectional protocols require external modulation via EXTM (absent on LNBP16SP-TR) and level-shifting circuitry per Eutelsat spec; LNBP20PD-TR is required for full DiSEqC™ 2.x compliance.
LNBP16SP-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- PowerSO-10 Exposed Bottom Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Converter, Analog and Digital Satellite Receivers
- Voltage - Input:
- 15V ~ 25V
- Number of Outputs:
- 1
- Voltage - Output:
- 13V, 18V
- Operating Temperature:
- 0°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-PowerSO
LNBP16SP-TR FAQ
1.How can I place an order for LNBP16SP-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for LNBP16SP-TR 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 LNBP16SP-TR reliable?
The price and inventory of LNBP16SP-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LNBP16SP-TR is usually 5 days.
3.What payment methods are accepted for LNBP16SP-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LNBP16SP-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LNBP16SP-TR?
LNBP16SP-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LNBP16SP-TR 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 LNBP16SP-TR?
For technical support, including LNBP16SP-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LNBP16SP-TR requirements.
6.How does Aetrix verify that LNBP16SP-TR is sourced from the original manufacturer or authorized distributors?
All LNBP16SP-TR 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 LNBP16SP-TR meets industry standards.
7.What is the process for return or replacement of LNBP16SP-TR?
All LNBP16SP-TR units undergo pre-shipment inspection (PSI). If there is an issue with LNBP16SP-TR, 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 LNBP16SP-TR part is unused and in its original packaging.
Return procedure for LNBP16SP-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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