MCP1650S-E/MS Microchip Integrated Circuit (Small Outline Packages) In Stock

Name: MCP1650S-E/MS
Brand: Microchip
SKU: MCP1650S-E/MS
Availability: InStock

The MCP1650S-E/MS is a current-mode PWM boost switching controller from Microchip with 2.7 V to 5.5 V input range, 2.55 V UVLO threshold, and an 8-pin MSOP package, designed for LED drivers and white-LED backlight boost converters in portable and battery-powered applications.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

MCP1650S-E/MSSmall Outline Packages

Quick Facts

Manufacturer: Microchip
Package: Small Outline Packages
Pin Count: 8
Lifecycle: ACTIVE
Datasheet: MCP1650S-E/MS Datasheet PDF
Category: Integrated Circuit
Price: From $1.0500(MOQ 1)
Temp Range: -40.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of MCP1650S-E/MS?

Current-mode PWM boost control topology for inherent cycle-by-cycle current limiting
Input voltage range: 2.7 V to 5.5 V — compatible with Li-Ion and alkaline batteries
2.55 V under-voltage lockout (UVLO) prevents brownout operation
Adjustable switching frequency via external resistor for EMI optimization
8-pin MSOP package for compact portable LED driver designs
Supports LED string boost applications up to tens of volts output

What is MCP1650S-E/MS used for?

The MCP1650S-E/MS is primarily used in white LED backlighting for small LCD panels in handheld devices, cameras, and portable medical monitors. Its current-mode PWM control enables stable LED brightness regulation across a wide load range while the 2.7 V minimum input allows operation from nearly depleted single-cell or two-cell alkaline batteries. The device is also suited for solar-harvesting LED systems and 5 V input boost converters generating higher voltage rails for analog circuits.

What are the specifications of MCP1650S-E/MS?

Manufacturer Package Code	MSOP-8
Factory Lead Time	11Weeks
YTEOL	8
Analog IC - Other Type	SWITCHING CONTROLLER
Control Mode	CURRENT-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	5.5V
Input Voltage-Min	2.7V
Input Voltage-Nom	3.3V
JESD-30 Code	S-PDSO-G8
JESD-609 Code	e3
Number of Functions	1
Output Voltage-Max	100V
Output Voltage-Min	3.3V
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
Screening Level	TS 16949
Surface Mount	YES
Switcher Configuration	BOOST
Switching Frequency-Max	850kHz
Temperature Grade	AUTOMOTIVE
Terminal Finish	Matte Tin (Sn)
Terminal Form	GULL WING
Terminal Pitch	0.65mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	40
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 MCP1650S-E/MS datasheet?

MCP1650S-E/MS Datasheet Download

Official datasheet from Microchip

What are equivalent replacements for MCP1650S-E/MS?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What input voltage range does the MCP1650S-E/MS support, and what UVLO threshold protects the circuit during low-battery conditions?

The MCP1650S-E/MS operates from 2.7 V to 5.5 V, covering single-cell Li-Ion batteries and 3.3 V or 5 V regulated rails. A 2.55 V under-voltage lockout (UVLO) shuts down the controller before the battery voltage drops too low, preventing unstable switching and protecting both the inductor and LED load.

How does current-mode PWM control in this boost controller improve LED brightness stability compared to voltage-mode designs?

Current-mode PWM control senses the inductor peak current every switching cycle and adjusts the duty cycle accordingly, providing inherent cycle-by-cycle current limiting and faster transient response. For LED drivers, this means the LED current remains stable even as the battery voltage drops from 4.2 V to 2.7 V, maintaining consistent brightness without a separate current-regulation loop.

For a compact camera backlight PCB, how does the 8-pin MSOP package of the MCP1650S-E/MS compare in footprint to the standard SOIC-8 alternative?

The MSOP-8 package occupies roughly 4.9 mm × 3.0 mm, which is about 60% smaller in area than the standard SOIC-8 at 4.9 mm × 3.9 mm, freeing meaningful board space in cameras and small handheld devices. The smaller pitch also reduces parasitic lead inductance, which benefits high-frequency switching at several hundred kilohertz.

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From $1.0500

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Qty.	Unit Price	Ext. Price
1+	$2.0300	$2.03
4+	$1.3608	$5.44
8+	$1.3411	$10.73
16+	$1.3215	$21.14
44+	$1.0500	$46.20

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Unit price: $2.0300 · Total: $2.03

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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MCP1650S-E/MS Microchip Integrated Circuit (Small Outline Packages) In Stock

What are the key features of MCP1650S-E/MS?

What is MCP1650S-E/MS used for?

What are the specifications of MCP1650S-E/MS?

Compliance & Regulatory

Where can I find the MCP1650S-E/MS datasheet?

What are equivalent replacements for MCP1650S-E/MS?

Frequently Asked Questions

What input voltage range does the MCP1650S-E/MS support, and what UVLO threshold protects the circuit during low-battery conditions?

How does current-mode PWM control in this boost controller improve LED brightness stability compared to voltage-mode designs?

For a compact camera backlight PCB, how does the 8-pin MSOP package of the MCP1650S-E/MS compare in footprint to the standard SOIC-8 alternative?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Microchip

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