ST1S12GR

ST1S12GR

ST1S12G12R Active

Synchronous rectification with inhibit, 0.7 A, 1.7 MHz fixed, step-down switching regulator
Input Voltage Min Volt2.5
Input Voltage Max Volt5.5
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius125.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
ROHS Compliance GradeEcopack2
GradeIndustrial
Package NameTSOT23-5L
Key Features
  • Step-down current mode PWM (1.7 MHz) DC-DC converter
  • 3% DC output voltage tolerance
  • Synchronous rectification
  • Fixed output voltage 1.2 V, 1.8 V, and ADJ (available on request 1.5 V, 2.5 V and 3.3 V)
  • Enable function
  • Internal soft start
  • Typical efficiency: > 90%
  • 0.7 A output current capability
  • Not switching quiescent current: max 650 μA over temperature range
  • RDSONtyp. 250 mΩ and 400 mΩ
  • Uses tiny capacitors and inductors
  • Operative junction temp. -40 °C to 125 °C
  • Available in TSOT23-5L package

The ST1S12 is a step down DC-DC converter optimized for powering low-voltage digital cores in HDD applications and, generally, to replace the high current linear solution when the power dissipation may cause high heating of the application environment. It provides up to 0.7 A over an input voltage range of 2.5 V to 5.5 V. A high switching frequency (1.7 MHz) allows the use of tiny surface-mount components. In addition to the resistor divider to set the output voltage value, only an inductor and two capacitors are required. Moreover, a low output ripple is guaranteed by the current mode PWM topology and by the use of low ESR SMD ceramic capacitors. The device is thermally protected and the current is limited to prevent damage due to accidental short-circuit. The ST1S12 is available in the TSOT23-5L package.

Out of stock
$0.88
Range Unit Price Savings
1 - 9$0.880%
10 - 99$0.7514%
100 - 499$0.5142%
500$0.4845%
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