Features: 1 A Output Current
0.6 V Maximum Dropout Voltage at IO = 1 A
Fast Transient Response
1 A Maximum Standby Current
Adjustable 1.28 ~ 15 V Output Voltage
Remote Voltage Sensing
Foldback Current Limiting
Ground Tab for Superior Heat Dissipation
Thermal ProtectionApplication TVs, VCRs, Electronic Games
Embedded Core, Memory, or Logic Supplies
Printers and Other Office Equipment
Industrial Machinery
Secondary-Side Stabilization of Multi-Output SMPSSpecificationsInput Voltage, VI . . . . . . . . . . . . . .17 V
Output Current, IO . . . . . . . . . . . . . 1 A*
Enable Input Voltage, VE . . . . . . . . . VI
Junction Temperature, TJ . . . . +125°C
Storage Temperature Range,
TS . . . . . . . . . . . . -30°C to +125°C
* Output current rating is limited by input voltage, duty cycle, and ambient temperature.Under any set of conditions, do not exceed a junction temperature of +125°C.
DescriptionDesigned to meet the high-current requirements in industrial and consumer applications; embedded core, memory, or logic supplies; TVs, VCRs, and office equipment, the SI-3012KM voltage regulator offers the reduced dropout voltage and low quiescent current essential for improved efficiency. SI-3012KM delivers a regulated output at up to 1 A. Integrated thermal and overcurrent protection enhance overall system reliability. Devices with fixed output voltages are also available.
Quiescent current SI-3012KM does not increase significantly as the dropout voltage is approached, an ideal feature in standby/resume power systems where data integrity is crucial. Regulator accuracy and excellent temperature characteristics are provided by a bandgap reference. An LS-TTL/CMOS-compatible input gives the designer complete control over power up, standby, or power down. A pnp pass element provides a dropout voltage of less than 600 mV at 1 A of load current. Low output voltages eliminate the need for expensive PWM buck converters. The low dropout voltage of SI-3012KM permits more efficient regulation before output regulation is lost.
SI-3012KM is supplied in a 5-lead TO-252 style surface-mount plastic package with ground tab to provide a low-resistance path for maximum heat dissipation.
SI-3012KM Data Sheet
