R1244N001B-FE

Brand: Ricoh
Product Code: R1244N001x-FE
Availability: 1233

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R1240x Series (1.2A, 30V Step Down DC/DC Converter)

Datasheet
Flyer
Supply Current (IDD)	Typ. 500µA (No switching)
Standby Current (Istandby)	Max. 5µA (CE="L")
Input Voltage Range (VIN)	4.5V ~ 30.0V
Output Voltage Range (VOUT)	0.8V to 15.0V (Externally adjustable) Feedback voltage : 0.8V)
Feedback Voltage Accuracy	± 12mV
Output Current (IOUT)	1.2A*
Oscillator Frequency (fosc)	1.25MHz
Oscillator Maximum Duty Cycle (Maxduty)	R1240x : Min. 75%, Typ. 85% R1244N : Typ. 85%
Minimum ON Time (tMIN)	Typ.100ns
UVLO Detect Voltage (VUVLO)	Typ. 3.8V
Soft Start Time (tstart)	Typ. 0.4ms
High Side Switch Limit Current	Typ. 2A
Thermal Shutdown Circuit	Stops at 160°C.
Fold-back Protection Circuit	Fold-back frequency Typ. 310kHz (B Version)
Package	SOT-23-6W
Ordering Format	R1244N001x-FE

Delivery Time
Lead-Time	In stock: ~3 weeks, Factory LT: 10 weeks
Item Characteristics
Version	001B
Control	PWM
Frequency	1.25MHz
Input Voltage	4.5V to 30.0V
Output Current	1.2A
Output Voltage	Ext. adjustable between 0.8V to 15.0V
Vfb Voltage Accuracy	± 12mV
Type	Fold-back, Diode Rectifier
Package	SOT-23-6W