Details, datasheet, quote on part number: SC1566IM-1.8TR
PartSC1566IM-1.8TR
CategoryPower Management and Supplies => IC Voltage Regulators => IC Linear Voltage Regulators => 7676399
Title1.764 V-1.836 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PSSO5
Description
CompanySemtech Corporation
DatasheetDownload SC1566IM-1.8TR datasheet
Cross ref.Similar parts: REG1117A
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Specifications 
Regulator TypeLow Dropout
Output PolarityPositive
Output Voltage TypeAdjustable / Variable
Package TypeOther, TO-263, 5 PIN
Life Cycle StageACTIVE
Output Voltage1.76 to 1.84 volts
IOUT3 amps
Dropout Voltage0.6000 volts

 

Features, Applications

DESCRIPTION

The is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage to 3 Amps. Since it has superior dropout characteristics compared to regular LDOs, it can be used to supply 2.5V on motherboards 2.8V on peripheral cards from the 3.3V supply thus allowing heat sink size reduction or elimination. Additionally, the five pin versions of SC1566 have an enable pin, to further reduce power dissipation while shut down. The SC1566 provides excellent regulation over variations in line, load and temperature. The SC1566 is available as three terminal fixed output voltage and five terminal fixed or adjustable output voltage devices with enable. Two package options are available: TO-263 and TO-220.

FEATURES 350mV dropout @ 3A Adjustable output from 4.8V 2.5V and 1.8V options (5 pin parts also adjustable

externally using resistors) Over current and over temperature protection Enable pin 10µA quiescent current in shutdown Low reverse leakage (output to input) Surface mount and through-hole packages Full industrial temperature range

APPLICATIONS Battery powered systems Motherboards Peripheral cards PCMCIA cards ABSOLUTE MAXIMUM RATINGS

Parameter Input Voltage Power Dissipation Thermal Resistance Junction to Case SC1566CT TO-220 Thermal Resistance Junction to Ambient SC1566CT TO-220 Operating Ambient Temperature Range Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering) 10 Sec. Symbol VIN PD Max 5.5 Internally Limited Units V W

Notes: (1) Where -X.X denotes voltage options. Available voltages are: 2.5V and 1.8V. (2) Output voltage can be adjusted using external resistors, see Pin Description. (3) Add suffix `TR' for tape and reel.

© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
NOTE: (1) 3-pin versions are fixed output voltage only.

ADJ This pin, when grounded, sets the output voltage to that set by the internal feedback resistors. If external feedback resistors are used, the output voltage will be: (See Application Circuit)

Enable Input. Pulling this pin below 0.4V turns the regulator off, reducing the quiescent current to a fraction of its operating value. The device will be enabled if this pin is left open. Connect to VIN if not being used. Reference ground. Input voltage. For regulation at full load, the input to this pin must be between (VO to 5.5V. Minimum VIN = 2.2V. This pin is the power output of this device.

© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

Unless specified: VEN = VIN Adjustable Option: VIN to 5.5V and to 3.0A Fixed Options: VIN = (VO to 5.5V and to 3.0A Values in bold apply over the full operating temperature range.

(Internal Fixed Voltage) Reference Voltage (5-Pin Versions) Line Regulation

NOTES: (1) Low duty cycle pulse testing with Kelvin connections required. (2) Defined as the input to output differential at which the output voltage drops to 1% below the value measured at a differential 0.7V. (3) Guaranteed by design. (4) When VADJ exceeds this threshold, the "Sense Select" switch disconnects the internal feedback chain from the error amplifier and connects VADJ instead. (5) Required to maintain regulation. Voltage set resistors R1 and R2 are usually utilized to meet this requirement. Adjustable versions only.

© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

 

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