LTC1550LCMS8-2.5#TRPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LTC1550LCMS8-2.5#TRPBF is an Analog Devices switched-capacitor charge pump voltage inverter that generates -2.5 V from a 2.7 V to 5.25 V input supply with up to 20 mA output current. Housed in a compact 8-pin MSOP package, it delivers regulated negative voltage without inductors. Available in tape and reel, lead-free packaging for modern PCB assembly.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC1550LCMS8-2.5#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.1900(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Generates -2.5 V regulated negative output from a 2.7 V to 5.25 V input supply with no inductors required
- Delivers up to 20 mA output current using a switched-capacitor charge pump architecture
- Compact 8-pin MSOP package enables space-efficient negative rail generation on dense PCB layouts
- Lead-free (e3) JESD-609 compliant packaging supports RoHS-compliant manufacturing processes
Applications
The LTC1550LCMS8-2.5#TRPBF is well suited for applications that require a small negative bias voltage from a single positive supply, such as LCD contrast control, op-amp negative rail generation, and sensor biasing circuits. It is commonly used in portable instruments, handheld devices, and battery-powered systems where board space is limited and an inductor-free solution is preferred. Industrial data acquisition front-ends and telecom line cards also benefit from its regulated -2.5 V output with minimal external components.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| YTEOL | 10 |
| Analog IC - Other Type | SWITCHED CAPACITOR REGULATOR |
| Input Voltage-Max | 5.25V |
| Input Voltage-Min | 2.7V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 0.02A |
| Output Voltage-Nom | -2.5 V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 7mA |
| Surface Mount | YES |
| Switcher Configuration | DOUBLER INVERTER |
| Switching Frequency-Max | 900kHz |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| 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 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LTC1550LCMS8-2.5#TRPBF:
Switched Capacitor Regulator, 0.02A, 900kHz Switching Freq-Max, CMOS, PDSO8
Frequently Asked Questions
What input voltage range does the LTC1550LCMS8-2.5#TRPBF support, and how does it affect output regulation?
The LTC1550LCMS8-2.5#TRPBF accepts an input voltage from 2.7 V to 5.25 V, making it compatible with 3.3 V and 5 V supply rails. Across this range it maintains a regulated -2.5 V output, though output voltage accuracy may vary slightly near the lower input limit of 2.7 V when load current approaches 20 mA.
Which portable and battery-operated designs benefit most from using LTC1550LCMS8-2.5#TRPBF as a negative rail generator?
Handheld instruments, LCD-biased displays, and single-supply op-amp circuits that need a -2.5 V rail benefit most, since the LTC1550LCMS8-2.5#TRPBF produces up to 20 mA without inductors. Its 2.7 V minimum input allows direct use with a single Li-ion cell or two AA batteries, saving board space compared to boost-inverter alternatives.
How does the 8-pin MSOP package size affect PCB layout for LTC1550LCMS8-2.5#TRPBF?
The 8-pin MSOP footprint measures approximately 3 mm x 3 mm, keeping the total solution size small when combined with only two or four external capacitors typically needed for the charge pump. This compact footprint is ideal for multi-layer PCBs where negative voltage rail routing must fit within tight area budgets of less than 25 mm².
When should a designer choose LTC1550LCMS8-2.5#TRPBF over an inductor-based inverting regulator for generating -2.5 V?
LTC1550LCMS8-2.5#TRPBF is the better choice when load current is at or below 20 mA and EMI from switching inductors is unacceptable, such as in precision analog measurement equipment. Inductor-based inverters offer higher current capacity above 50 mA but introduce magnetic field interference; the switched-capacitor approach avoids this at the cost of current capability.
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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.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.6700 | $3.67 |
| 1000+ | $3.1900 | $3190.00 |
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