LT1121CST-5#PBF Positive Linear Regulators (LDO) by Analog Devices

Status: Production
Series: LT1121
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT1121/LT1121-3.3/LT1121-5 are micropower low dropout regulators with shutdown. These devices are capable of supplying 150mA of output current with a dropout voltage of 0.4V. Designed for use in battery-powered systems, the low quiescent current, 30µA operating and 16µA in shutdown, makes them an ideal choice. The quiescent current is well-controlled; it does not rise in dropout as it does with many other low dropout PNP regulators.Other features of the LT1121/LT1121-3.3/LT1121-5 include the ability to operate with very small output capacitors. They are stable with only 0.33µF on the output while most older devices require between 1µF and 100µF for stability. Small ceramic capacitors can be used, enhancing manufacturability. Also the input may be connected to ground or a reverse voltage without reverse current flow from output to input. This makes the LT1121 series ideal for backup power situations where the output is held high and the input is at ground or reversed. Under these conditions only 16µA will flow from the output pin to ground.

Where to Buy

Prices starting from US$3.19

Distributor Stock
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Newark Electronics
from US$4.43
150
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element14
from US$4.70
150
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Farnell
from US$4.56
150
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TME
from US$3.19
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Buerklin
from US$8.50
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Features

0.4V Dropout Voltage
150mA Output Current
30µA Quiescent Current
No Protection Diodes Needed
Adjustable Output from 3.75V to 30V
3.3V and 5V Fixed Output Voltages
Controlled Quiescent Current in Dropout
Shutdown
16µA Quiescent Current in Shutdown
Stable with 0.33µF Output Capacitor
Reverse Battery Protection
No Reverse Current with Input Low
Thermal Limiting
Available in the 8-Lead SO, 8-Lead PDIP, 3-Lead SOT-23 and 3-Lead TO-92 Packages

Last 6 months Inventory & Pricing History


Alternative Descriptions

Ldo, Fixed, 5V, 0.15A, Sot-223, 125Deg C | Newark Electronics
LDO, FIXED, 5V, 0.15A, SOT-223, 125DEG C | element14
IC: voltage regulator | TME
LDO Regulator Pos 5V 0.15A 4-Pin(3+Tab) SOT-223 Tube | Richardson RFPD


LT1121CST-5#PBF Power Management ICs - PMIC by Linear Technology

IC LDO REG 5V 150MA SOT223-3

Status: Unknown
Series: 5V 150mA LDO Voltage Regulators
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Output Type Fixed
Input Voltage Min 4.2V
Input Voltage Max 30V
Fixed Output Voltage Nom. 5V
Adjustable Output Voltage Min -
Adjustable Output Voltage Max -
Output Current 150mA
Dropout Voltage Vdo 420mV
LDO Regulator Case Style SOT-223
No. of Pins 3Pins
Operating Temperature Min 0°C
Operating Temperature Max 125°C
Product Range 5V 150mA LDO Voltage Regulators
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 1121
No. of Outputs 1Outputs
Operating Temperature Range 0°C to +125°C
Output Current Max 0.15A
Output Voltage Nom. 5V
Primary Input Voltage 6V
Supply Voltage Max 20V
Termination Type Surface Mount Device
Voltage Regulator Type LDO Fixed Positive

Last 6 months Inventory & Pricing History


Alternative Descriptions

Spannungsregler, 5 VDC, 150 mA, positiv, SOT-223, LT1121CST-5#PBF | Buerklin

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT1121CST-5#PBF?

Additional datasheets, footprints and schematics for LT1121CST-5#PBF are listed on our Part Details page. You can also find images and similar parts to LT1121CST-5#PBF on this page.

What pricing and inventory information can I view?

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What category does LT1121CST-5#PBF fall under?

The LT1121CST-5#PBF is listed under Positive Linear Regulators (LDO).

Can I view similar or alternative parts?

You can view similar parts to LT1121CST-5#PBF when available in the Positive Linear Regulators (LDO) range under the specifications section at the bottom of the details page.

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Is the LT1121CST-5#PBF RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for LT1121CST-5#PBF have stock available?

Authorised distributors including Newark Electronics, element14, Farnell, TME and Buerklin have stock available or on a lead time for LT1121CST-5#PBF.

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