LTC1550LCMS8-2.5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

Name: LTC1550LCMS8-2.5#PBF
Brand: Analog Devices
SKU: LTC1550LCMS8-2.5#PBF
Availability: InStock

The LTC1550LCMS8-2.5#PBF is a low-noise switched-capacitor voltage inverter from Analog Devices that generates a -2.5V output from a 2.7V–5.25V input with minimal external components. Available in MSOP-8 package with RoHS-compliant Pb-free construction, in stock with worldwide shipping.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

LTC1550LCMS8-2.5#PBFSmall Outline Packages

Quick Facts

Manufacturer: Analog Devices
Package: Small Outline Packages
Pin Count: 8
Lifecycle: ACTIVE
Datasheet: LTC1550LCMS8-2.5#PBF Datasheet PDF
Category: Integrated Circuit
Price: From $3.1900(MOQ 19)
Temp Range: ?°C to 70.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LTC1550LCMS8-2.5#PBF?

Low-noise switched-capacitor topology inverts 2.7V–5.25V input to a regulated -2.5V output without magnetic inductors
Fixed -2.5V output ideal for powering op-amp negative rails, LCD bias, and analog front-end circuits requiring a negative supply
Compact MSOP-8 (CMS8) package occupies minimal PCB area for space-constrained portable and handheld designs
5V nominal input voltage compatibility integrates directly with standard single-supply 5V system rails
Pb-free, RoHS-compliant construction satisfies environmental regulations for commercial and industrial end products

What is LTC1550LCMS8-2.5#PBF used for?

The LTC1550LCMS8-2.5#PBF is designed for systems that need a small, clean -2.5V negative supply rail derived from a single 5V source, such as op-amp bias circuits, LCD contrast voltage generators, and precision analog-to-digital converter references in portable instruments. Its inductor-free switched-capacitor architecture reduces EMI and simplifies board layout in handheld test equipment, data loggers, and medical diagnostic devices. The MSOP-8 package and minimal external capacitor requirements make it a drop-in negative rail solution for battery-powered mixed-signal designs.

What are the specifications of LTC1550LCMS8-2.5#PBF?

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 Voltage-Max	-2.562 V
Output Voltage-Min	-2.438 V
Output Voltage-Nom	-2.5 V
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 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

Where can I find the LTC1550LCMS8-2.5#PBF datasheet?

LTC1550LCMS8-2.5#PBF Datasheet Download

Official datasheet from Analog Devices

What are equivalent replacements for LTC1550LCMS8-2.5#PBF?

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Frequently Asked Questions

What output voltage does the LTC1550LCMS8-2.5#PBF produce and what input range does it require?

The LTC1550LCMS8-2.5#PBF generates a regulated -2.5V output from an input voltage between 2.7V and 5.25V, with 5V being the nominal input; this makes it directly compatible with standard 5V single-supply systems that need a negative rail for op-amps, ADC references, or LCD bias without a separate inverting regulator.

How does the switched-capacitor topology of the LTC1550LCMS8-2.5#PBF reduce noise compared to inductor-based inverters?

Unlike PWM buck-boost inverters that switch inductors and generate broadband EMI, the LTC1550LCMS8-2.5#PBF uses a charge-pump switched-capacitor architecture that transfers energy via flying capacitors typically in the 1µF to 10µF range, producing lower high-frequency noise and avoiding the magnetic field emissions that complicate shielding of sensitive 16-bit ADC circuits operating from the -2.5V rail.

What external components are needed to complete the LTC1550LCMS8-2.5#PBF design, and how much board area is required?

A typical LTC1550LCMS8-2.5#PBF application requires two flying capacitors of approximately 1µF each and one output filter capacitor of 10µF; combined with the MSOP-8 package footprint of roughly 3mm × 3mm, the complete power supply occupies under 50mm² of PCB area, making it one of the smallest negative-rail solutions available.

Can the LTC1550LCMS8-2.5#PBF supply enough current for a dual-supply rail-to-rail op-amp in a portable instrument?

The LTC1550LCMS8-2.5#PBF is designed for low-current negative rail applications; it can typically source 20–30mA from its -2.5V output, which is sufficient for one or two low-power op-amps with quiescent currents under 10mA each but may be insufficient for high-drive audio or motor-driver negative rails requiring over 100mA.

When should a designer choose the LTC1550LCMS8-2.5#PBF over a linear negative regulator like an LM337 for generating -2.5V?

The LTC1550LCMS8-2.5#PBF is preferred when the system has only a single 5V rail and no negative input voltage is available, since the LM337 requires a negative input supply several volts below -2.5V to regulate; the switched-capacitor approach generates the -2.5V autonomously from the positive rail, eliminating the dual-supply transformer or boost stage the LM337 would otherwise demand.

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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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AvailabilityIn Stock

Reference Price (USD)

From $3.1900

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
19+	$4.2300	$80.37
250+	$3.5722	$893.06
500+	$3.4625	$1731.25
1000+	$3.1900	$3190.00

pcs

Unit price: $4.2300 · Total: $80.37

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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LTC1550LCMS8-2.5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

What are the key features of LTC1550LCMS8-2.5#PBF?

What is LTC1550LCMS8-2.5#PBF used for?

What are the specifications of LTC1550LCMS8-2.5#PBF?

Compliance & Regulatory

Where can I find the LTC1550LCMS8-2.5#PBF datasheet?

What are equivalent replacements for LTC1550LCMS8-2.5#PBF?

Frequently Asked Questions

What output voltage does the LTC1550LCMS8-2.5#PBF produce and what input range does it require?

How does the switched-capacitor topology of the LTC1550LCMS8-2.5#PBF reduce noise compared to inductor-based inverters?

What external components are needed to complete the LTC1550LCMS8-2.5#PBF design, and how much board area is required?

Can the LTC1550LCMS8-2.5#PBF supply enough current for a dual-supply rail-to-rail op-amp in a portable instrument?

When should a designer choose the LTC1550LCMS8-2.5#PBF over a linear negative regulator like an LM337 for generating -2.5V?

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