R1243K001A

R1243K001A
R1243K001A R1243K001A R1243K001A R1243K001A
Brand: Ricoh
Product Code: R1243K001x
Availability: 2167
Price: US$2.45

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R1243x Series (30V Input 2A Buck DC/DC Converter)

Datasheet
Flyer
Operating Voltage 4.5V ~ 30V
Stand-by function Typ. 0μA, Max. 10μA (VIN =30V, CE="L")
Supply Current Typ. 0.7mA (VIN=30V VFB=1.0V)
Output Voltage Range 0.8V ~ 18V (Adjustable with external resistor)
Feed Back Voltage 0.5V with 1.4% accuracy
Output Current Max. 2A
Peak Current Limit Function Typ. 3.8A
Internal Nch MOSFET Driver Typ. 175mΩ
Maximum Duty Cycle Min. 85%
Operating Frequency Ver.A/B 1000kHz, Ver.C/D 330kHz
Short protection delay time for Output Latch Typ. 2ms : Ver.A/C
Built-in Foldback Protection and its Frequency 1/4 frequency at fold condition : Ver.B/D
Ver.B 250kHz, Ver.D 82.5kHz
Internal Soft Start Time Typ. 0.4ms, with TSS pin open
External Soft Start Time Typ. 12ms, with CSS=0.1μF
Flag Output Function Typ. 0.25ms, FLG “OFF” delay time
UVLO Released Voltage Typ. 4.0V
Thermal Shutdown Function Typ. 160°C, with 35°C hysteresis
Package DFN(PLP)2527-10
Ordering Format R1243K001x
Delivery Time
Lead-Time In stock: ~3 weeks, Factory LT: 10 weeks
Item Characteristics
Version 001A/C
Control PWM
Frequency 1MHz (A/B/E)
Input Voltage 4.5V to 30.0V
Output Current 2A
Output Voltage Ext. adjustable between 0.8V to 18.0V
Vfb Voltage Accuracy ± 7mV
Type Latch (Delay Time=2ms), Diode Rectifier
Package DFN(PLP)2527-10
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