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R1218x

Features: • Operating voltage.......................................... 1.8V to 5.5V• Built-in 400mA, 1.5, 20V Nch MOSFET (R1218xxx1A)• Built-in 400mA, 1.5, 29V Nch MOSFET (R1218xxx2A)• Oscillator Frequency (PWM control)............. 1.2MHz• Maximum Duty Cycle...........

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SeekIC No. : 004468898 Detail

R1218x: Features: • Operating voltage.......................................... 1.8V to 5.5V• Built-in 400mA, 1.5, 20V Nch MOSFET (R1218xxx1A)• Built-in 400mA, 1.5, 29V Nch MOSFET (R1218xx...

R1218x Data Sheet

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Part Number:
R1218x
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

• Operating voltage.......................................... 1.8V to 5.5V
• Built-in 400mA, 1.5, 20V Nch MOSFET (R1218xxx1A)
• Built-in 400mA, 1.5, 29V Nch MOSFET (R1218xxx2A)
• Oscillator Frequency (PWM control)............. 1.2MHz
• Maximum Duty Cycle.................................... Typ. 91%
• Feedback Voltage ......................................... Typ. 0.2V
• UVLO Threshold Voltage .............................. Typ. 1.6V (Hysteresis Typ. 0.1V)
• Lx Current limit Protection............................. Typ. 700mA
• Over Voltage Protection (OVP) Threshold.... Typ. 9.5V (R1218x021A)
Typ. 14.0V (R1218x031A)
Typ. 18.5V (R1218x041A)
Typ. 23.0V (R1218x052A)
Typ. 27.5V (R1218x062A)
• LED dimming control..................................... by external PWM signal (Frequency 200Hz to 5kHz) to CE pin
by feedback voltage and filtered PWM signal (high frequency)
• Packages ...................................................... SOT-23-6 or PLP1820-6




Application

White LED Backlight for portable equipment


Pinout

Connection Diagram


Specifications

Symbol Item Rating Unit
VIN VIN Pin Voltage 6.5 V
VCE CE Pin Voltage −0.3 to VIN+0.3 V
VFB VFB Pin Voltage −0.3 to VIN+0.3 V
VOUT VOUT Pin Voltage R1218xxx1A −0.3 to 32 V
R1218xxx2A −0.3 to 32
VLX LX Pin Voltage R1218xxx1A −0.3 to 32 V
R1218xxx2A −0.3 to 32
ILX LX Pin Current 800 mA
PD Power Dissipation (SOT-23-6) *Note1 420 mW
Power Dissipation (PLP1820-6) *Note1 880
Topt Operating Temperature Range −40 to 85 °C
Tstg Storage Temperature Range −55 to 125 °C


*Note1) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.




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