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Si9185

Features: Input Voltage 2 V to 6 VLow 150-mV Dropout at 500-mA LoadGuaranteed 500-mA Output CurrentUses Low ESR Ceramic Output CapacitorFast Load and Line Transient ResponseOnly 100-V(rms) Noise With Noise Bypass Capacitor1-A Maximum Shutdown CurrentBuilt-in Short Circuit and Thermal ProtectionOut...

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SeekIC No. : 004490950 Detail

Si9185: Features: Input Voltage 2 V to 6 VLow 150-mV Dropout at 500-mA LoadGuaranteed 500-mA Output CurrentUses Low ESR Ceramic Output CapacitorFast Load and Line Transient ResponseOnly 100-V(rms) Noise Wit...

Si9185 Data Sheet

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Part Number:
Si9185
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/25

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Product Details

Description



Features:

Input Voltage 2 V to 6 V
Low 150-mV Dropout at 500-mA Load
Guaranteed 500-mA Output Current
Uses Low ESR Ceramic Output Capacitor
Fast Load and Line Transient Response
Only 100-V(rms) Noise With Noise Bypass Capacitor
1-A Maximum Shutdown Current
Built-in Short Circuit and Thermal Protection
Out-Of-Regulation Error Flag (Power Good or POR)
Fixed 1.215-V, 1.5-V, 1.8-V, 2.0-V, 2.5-V, 2.8-V, 2.9-V,3.0-V, 3.3-V, 5.0-V, or Adjustable Output Voltage Options




Application

Laptop and Palm Computers
Desktop Computers
Cellular Phones
PDA, Digital Still Cameras




Pinout

Connection Diagram




Specifications

Input Voltage, VIN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5 V
SD Input Voltage,SD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to VIN
Output Current, IOUT. . . . . . . . . . . .500 mA Continuous, Short Circuit Protected
Output Voltage, VOUT. . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to VO(nom)+ 0.3 V
Maximum Junction Temperature, TJ(max) . . . . . . . . . . . . . . . . . . . . . . . . . . .150
Storage Temperature, TSTG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 to 150
ESD (Human Body Model). . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . 2 kV
Power Dissipationb. . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .. . . . . . . . . . .2.5 W
Thermal Impedance (JA)a
(RJA). . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . .50/W
(RJC). . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . .4/W




Description

The Si9185 is a 500-mA CMOS LDO (low dropout) voltage regulator. The device features ultra low ground current and dropout voltage to prolong battery life in portable electronics. The Si9185 offers line/load transient response and ripple rejection superior to that of bipolar or BiCMOS LDO regulators,and is designed to drive lower cost ceramic, as well as tantalum, output capacitors. An external noise bypass capacitor connected to the device's CNOISEpin will lower the LDO's output noise for low noise applications. The Si9185 also includes an out-of-regulation error flag. If a capacitor is connected to the device's delay pin, the error flag output pin will generate a delayed power-on-reset signal. The device is guaranteed stable from maximum load current down to 0-mA load.

The Si9185 is available in a MLP33 PowerPAK package. This allows enhanced heat transfer to the PC board. The Si9185 is specified to operate over the industrial temperature range of 40






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