Details, datasheet, quote on part number: SC1538CS15
CategoryPower Management => Regulators => Linear Regulators
DescriptionDual Linear Controller
CompanySemtech Corporation
DatasheetDownload SC1538CS15 datasheet
Find where to buy


Features, Applications


The is a dual power supply controller designed to simplify power management on motherboards. It is part of Semtech's Smart LDOTM family of products. The SC1538CS15/18 can provide a 1.818V power supply for the I/O plane and a 1.515V power supply for the GTL+ and AGP planes. The SC1538CS25/25 can provide two 2.525V supplies for clock and memory. SC1538 features include Enable controls for each linear FET controller and over current protection. Over current protection is provided by feedback to the sense pins. If any output drops below 1V (typical) for greater than 4ms (typical), that output will shut down. The SC1538 is available a SO-8 surface mount package.

Dual power supplies 1.515V Supply for GTL+ and AGP planes/1.818V Supply for chipset I/O and memory termination Dual 2.525V supplies for clock and memory Individual Enable control of each supply Over current protection

Note: (1) Add suffix `TR' for tape and reel packaging.

Parameter Input Supply Voltage Input Pins Operating Temperature Range Operating Junction Temperature Storage Temperature Range Lead Temperature (Soldering) 10 Sec Thermal Temperature Junction to Ambient TA TJ TSTG TLEAD JA JC ESD Symbol VIN Maximum -65 to Units V °C °C/W kV


Pin Name SNS1 EN1 GND SNS2 DRV2 VIN Pin Function Output of regulator #1. Drives the gate of an N-channel MOSFET to maintain 1.818V/ 2.525V. Regulator #1 Sense input. Use as a remote sense to the source of the N-channel MOSFET (Output 1). Active high enable control with internal pullup. Output of regulator #1 turns off when EN1 is taken low. Ground Active high enable control with internal pullup. Output of regulator #2 turns off when EN2 is taken low. Regulator #2 Sense input. Use as a remote sense to the source of the N-channel MOSFET (Output 2). Output of regulator #2. Drives the gate of an N-channel MOSFET to maintain 2.525V. +12V Supply.

Unless specified, = 25°C. Values in bold apply over full operating temperature range.
Undervoltage Lockout Start Threshold Enable Pin Current IEN VTH VHYST
Threshold Voltage Hysteresis Enable Delay Time

VEN rising EN = Low to High, measured from EN = VTH to 10% DRV EN = High to Low, measured from EN = VTH to 90% DRV

Disable Delay Time DRV Output Current Output Voltage Rise Time Fall Time
Output Voltage Regulation Output Voltage VO 3.0V VFET

Overcurrent Protection Trip Threshold Power-up Output Short Circuit Immunity Output Short Circuit Glitch Immunity Control Section Bandwidth


Related products with the same datasheet
Some Part number from the same manufacture Semtech Corporation
SC1538CS15.TR Dual Linear Fet Controller
SC1538CS18 Dual Linear Controller
SC1538CS18.TR Dual Linear Fet Controller
SC1538CS25 Dual Linear Controller
SC1538CS25.TR Dual Linear Fet Controller
SC1540 300 ma And 500 ma Low-dropout Voltage Regulators With Enable
SC1540CS-1.8 300ma And 500ma Low Dropout Voltage Regulators With Enable
SC1540CS-1.8.TR 300 ma And 500 ma Low-dropout Voltage Regulators With Enable
SC1540CS-2.5 300ma And 500ma Low Dropout Voltage Regulators With Enable
SC1540CS-2.5.TR 300 ma And 500 ma Low-dropout Voltage Regulators With Enable
SC1540CS-3.3 300ma And 500ma Low Dropout Voltage Regulators With Enable
SC1540CS-3.3.TR 300 ma And 500 ma Low-dropout Voltage Regulators With Enable
SC1541 1.0 a Low-dropout Voltage Regulator With Enable
SC1543 400ma/200ma Dual 3.3v Smart Power Switch
SC1544 Acpi Controller For Advanced Motherboards
SC1545 500 ma SmartLDO™ With Power-up Signal Sequencing
SC1545CS 500ma Smartldotm With Power up Signal Sequencing
SC1545CSTR 500 ma SmartLDO™ With Power-up Signal Sequencing
SC1548 Linear Fet Controller

EZ1082-ADJ : 10.0 Positive Voltage Regulator

SC4041DZ : Precision Shunt Voltage Reference

SX82 : 5 Watt Voltage Regulator

MMBTRA111SS : PNP Silicon Epitaxial Planar Transistor

4020EN103K6 : HIGH Voltage Capacitors Monolithic Ceramic TYPE

SC2449ISWTRT : Bi-phase/dual Controller

MTZ15C : Silicon Epitaxial Planar Zener Diodes

1515LX103M8 : HIGH Voltage Capacitors Monolithic Ceramic TYPE

SC560FULTRT : Pmic - Voltage Regulator - Linear Integrated Circuit (ics); IC LDO REG DUAL-OUT LN 8-MLPQ Specifications: Lead Free Status: Lead Free ; RoHS Status: RoHS Compliant

EZ1583CM-2.5 : 1.5 V FIXED POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PSSO5 Specifications: Regulator Type: Low Dropout ; Output Polarity: Positive ; Output Voltage Type: Fixed ; Package Type: Other, TO-263, 5 PIN ; Life Cycle Stage: ACTIVE ; Output Voltage: 1.5 volts ; IOUT: 1.5 amps ; VIN: 1.75 to 5.5 volts ; Dropout Voltage: 0.6000 volts

SMS15.CT : 300 W, UNIDIRECTIONAL, 5 ELEMENT, SILICON, TVS DIODE Specifications: Arrangement: Common Anode ; Diode Type: Transient Voltage Suppressor Diodes ; VBR: 6 volts ; Package: SOT23, SOT-23, PLASTIC PACKAGE-6 ; Pin Count: 6 ; Number of Diodes: 5

Same catergory

AD402M182RBA-5 : Low Voltage Operation is More Suitable to be Used on Battery Backup, Portable Electronic.

AME8810 : LDO. 600ma CMOS LDO. The AME8805/8810 family of positive, linear regulators feature low quiescent current (30µA typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SOT-89 and SOT-223 packages are attractive for "Pocket" and "Hand Held" applications. These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent.

CS5159 : Cpu 5-bit Synchronous Buck Controller. The a 5­bit synchronous dual N­Channel buck controller. It is designed to provide unprecedented transient response for today's demanding high­density, high­speed logic. The regulator operates using a proprietary control method, which allows 100 ns response time to load transients. The CS5159 is designed to operate over 4.25­16 V range (VCC) using V to power.

LTC1044CS8 : Voltage Inverter/Converter. Switched Capacitor Voltage Converter.

R5101G : Watchdog Timer.

SRV05-4 : Data & I/O Protection. RailClamp® Low-capacitance TVS Diode Array / SOT-23.

TL2845D : Current Mode. ti TL2845, Current-mode PWM Controller. Optimized for Off-Line and dc-to-dc Converters Low Start-Up Current (<1 mA) Automatic Feed-Forward Compensation Pulse-by-Pulse Current Limiting Enhanced Load-Response Characteristics Undervoltage Lockout With Hysteresis Double-Pulse Suppression High-Current Totem-Pole Output Internally Trimmed Bandgap Reference 500-kHz Operation Error Amplifier With.

TPS62002 : . High-Efficiency Synchronous Step-Down Converter With Greater Than 95% Efficiency 5.5 V Operating Input Voltage Range Adjustable Output Voltage Range From to VI Fixed Output Voltage Options Available 2.5 V, and 3.3 V Synchronizable to External Clock Signal to 1 MHz 600 mA Output Current Pin-Programmable Current Limit High Efficiency Over a Wide Load.

TPS76618D : ti TPS76618, Ultra-low Quiescent Current 250-mA LDO Linear Regulators.

UA78M12CKC : ti UA78M12, 12V, 500mA Fixed Positive Voltage Regulator. 3-Terminal Regulators Output Current mA No External Components Internal Thermal-Overload Protection High Power-Dissipation Capability Internal Short-Circuit Current Limiting Output Transistor Safe-Area Compensation This series of fixed-voltage integrated-circuit voltage regulators is designed for a wide range of applications. These applications include.

UC3844 : SMPS Controller. Low Start up Current Maximum Duty Clamp UVLO With Hysteresis Operating Frequency to 500KHz The UC3842/UC3843/UC3844/UC3845 are fixed frequencycurrent-mode PWM controller. They are specially designed for Off-Line and to DC converter applications with minimum external components. These integrated circuits feature a trimmed oscillator for precise duty.

UCC28512DW : Power Factor Correction IC's. ti UCC28512, Advanced Pfc/pwm Combination Controllers.

X60250 : Micro Power Programmable Voltage Reference. 1.0%, 20ppm/°C tempco reference Adjustable to ±0.25% over the to 1.25V Range 8 bit, 100k XDCP on-chip Programmable Resolution 4.9mV (255 steps) Extra matched 100k resistor available for increased resolution over a smaller range to 5.5V Supply Range 2-Wire Interface for Programming Reference Setting Low Supply current: 12µA in normal mode 8-pin TSSOP.

IR1166 : The IR1166 SmartRectifier IC is designed for AC-DC power converters used in laptops, mini-PCs, LCD and PDP televisions, game systems, home theater audio, motor drive, and other digital computing and home entertainment systems. Enabling smaller and cooler supplies, the eight-pin IR1166 IC simplifies the design of mid-power secondary synchronous rectification.

IPS6021SPBF : intelligent Power Switch 1 Channel High Side Driver in a D2-Pak Package.

SP6336 : Quad microPower Supervisory Circuits with Manual Reset and Watchdog * Low operating voltage of 1.6V * Low operating current of 20uA typical * Monitors up to four supplies simultaneously * Adjustable inputs monitor down to 0.5V * Reset asserted down to 0.9V * 2% accuracy over temperature range * Open Drain (OD) RSTB * 4 Reset Timeout Periods: 50ms, 100ms,.

TPS54418 : 2.95V To 6V Input, 4A, 2MHz Synchronous Step Down SWIFT™ DCDC Converter The TPS54418 device is a full featured 6 V, 4 A, synchronous step down current mode converter with two integrated MOSFETs. The TPS54418 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size.

ISL89163 : High Speed, Dual Channel, 6A, Power MOSFET Driver With Enable Inputs The ISL89163, ISL89164, and ISL89165 are high-speed, 6A, dual channel MOSFET drivers with enable inputs. These parts are identical to the ISL89160, ISL89161, ISL89162 drivers but with an added enable input for each channel occupying NC pins 1 and 8 of the ISL89160, ISL89161, ISL89162..

PT7M7803S : µ µ µ µ µP Supervisor Circuits The PT7M7xxx family microprocessor (µP) supervisory circuits are targeted to improve reliability and accuracy of power-supply circuitry in µP systems. These devices reduce the complexity and number of components required to monitor power-supply and battery functions..

0-C     D-L     M-R     S-Z