LTC1844ES5-SD

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LTC1844ES5-SD

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Specifications

Series LTC1844
Brand Analog Devices
Product Type LDO Voltage Regulators
Subcategory PMIC - Power Management ICs
Product LDO Voltage Regulators
Type VLDO Linear Regulator
Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 125 C
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Package / Case SOT-5
Height 1 mm
Output Voltage Adjustable
Load Regulation 9 mV
Output Current 150 mA
Number of Outputs 1 Output
Input Voltage - Min 1.6 V
Input Voltage - Max 6.5 V
Operating Supply Current 35 uA
Ib - Input Bias Current 30 nA
Polarity Positive
PSRR / Ripple Rejection - Typ 50 dB
Output Type Adjustable
Dropout Voltage 135 mV
Dropout Voltage - Max 200 mV
Line Regulation 4 mV
Mounting Style SMD/SMT
Voltage Regulation Accuracy 1.75 %
Output Voltage Range 1.25 V to 6 V
Reference Voltage 1.25 V

Overview

Description

The LTC1844ES5-SD is a micropower, low-dropout (LDO) linear voltage regulator designed by Analog Devices. It is specifically engineered for applications that require a regulated output voltage with minimal power consumption and a small form factor. The device typically operates with an input voltage range from 1.6V to 6.5V and provides a fixed output voltage. Its low dropout voltage of approximately 300mV at full load ensures efficient operation even at low input-to-output voltage differentials.
This regulator is packaged in a compact SOT-23-5 package, making it ideal for space-constrained applications. It features low quiescent current, typically around 20µA, which helps to extend battery life in portable and handheld devices. The LTC1844ES5-SD also includes thermal protection and current limiting, safeguarding against potential damage due to overheating or excessive load conditions.
Overall, the LTC1844ES5-SD is suited for use in battery-powered electronics, portable devices, and any application that demands efficient power regulation in a small package with minimal power loss.

Features

The LTC1844ES5-SD is a low-dropout (LDO) linear voltage regulator designed by Analog Devices. It offers several key features:
1. Low Dropout Voltage: The device exhibits a low dropout voltage, making it efficient for battery-powered applications by reducing power losses.
2. Low Quiescent Current: It operates with a low quiescent current, which extends battery life in portable devices.
3. Output Current: Capable of delivering up to 150mA of output current, suitable for small to medium power loads.
4. Fixed Output Voltage: The LTC1844ES5-SD provides a fixed output voltage, ensuring steady voltage regulation.
5. Thermal Protection: It includes built-in thermal protection to prevent overheating, enhancing reliability.
6. Short-Circuit Protection: The regulator features short-circuit protection, safeguarding the device and connected components against faults.
7. Compact Package: Available in a small SOT-23 package, it is ideal for space-constrained applications.
8. Wide Input Voltage Range: Supports a wide input voltage range, offering flexibility in different power supply configurations.
These features make the LTC1844ES5-SD a robust choice for applications requiring efficient, reliable voltage regulation in compact form factors.

Package

The LTC1844ES5-SD is a low dropout (LDO) linear regulator IC from Analog Devices. It comes in a SOT-23 package type, which is a small outline transistor package with 5 leads (SOT-23-5).

Pinout

The LTC1844ES5-SD is a low dropout (LDO) linear regulator. It comes in a 5-lead SOT-23 package. The device is designed to provide a constant output voltage with low dropout characteristics, making it suitable for battery-powered applications.
Pin Count and Functions:
1. VIN: Input voltage pin. This is where the input voltage is supplied to the regulator.
2. GND: Ground pin. It is the common ground reference for input and output.
3. VOUT: Output voltage pin. This provides the regulated output voltage.
4. SHDN: Shutdown pin. This pin is used to enable or disable the regulator. Pulling it low disables the regulator, reducing the quiescent current significantly.
5. NC: No connect pin. This pin is not internally connected and can be left floating or connected to ground.
This concise summary provides an overview of the pin configuration and basic function of the LTC1844ES5-SD.

Manufacturer

The LTC1844ES5-SD is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. These components are used in a wide range of electronic equipment, serving industries such as telecommunications, industrial automation, automotive, healthcare, and consumer electronics. The company is known for producing high-performance, high-precision integrated circuits that are integral to modern electronic systems.

Application

The LTC1844ES5-SD is a low dropout (LDO) voltage regulator. Its primary application areas include portable electronic devices, battery-powered equipment, and handheld instruments that require efficient power management. It is well-suited for applications needing low quiescent current, tight output voltage regulation, and low noise performance. Additionally, it can be used in systems requiring stable power supply in compact form factors.

Equivalent

The LTC1844ES5-SD is a low dropout (LDO) linear regulator. Equivalent products with similar specifications include:
1. MIC5205 from Microchip Technology
2. LP2985 from Texas Instruments
3. NCP51200 from ON Semiconductor
4. ADP3338 from Analog Devices
These alternatives offer comparable low dropout voltage and current output characteristics. Always check specific component datasheets for exact matching specifications and pin compatibility.

Shipping

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DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

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