R1242S001B-FE

Brand: Ricoh
Product Code: R1242S001x-FE
Availability: 510

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R1242S Series (30V Input 3A Buck DC/DC Converter)

Datasheet
Flyer
Design Guide
Operating Voltage	5V ~ 30V
Supply Current	Typ. 0.8mA (Set Vout=1.0V @Vin=30V)
Adjustable Output Voltage with External Resistor	0.8V ~ 15V
Feed Back Voltage	0.8V with 1.5% accuracy
Output Current	3A
Peak Current Limit Function	Typ. 4.5A
Internal Soft Start Time	Typ. 0.5ms
Maximum Duty Cycle	Typ. 88%
UVLO Detector Threshold	Typ. 3.6V
Thermal Shutdown Function	Typ. 160°C, with 30°C hysteresis
Operating Frequency	Version A/B adjustable from 330kHz to 1MHz Version C/D 330kHz Version E/F 500kHz Version G/H 1000kHz
Built-in Foldback Protection and its frequency	1/4 at fold condition: Ver.B 83kHz: Ver.D 125kHz: Ver.F 250kHz: Ver.H
Short Protection delay time for Output Latch	Typ. 5ms : Ver.A/C/E/G
Stand-by Function	0μA (Typ.), Max. 20μA (@Vin=30V, CE="L")
Package	HSOP-8E
Ordering Format	R1242S001x-FE

Delivery Time
Lead-Time	In stock: ~3 weeks, Factory LT: 10 weeks
Item Characteristics
Version	001B/D/F/H
Control	PWM
Frequency	Ext. adjustable between 330kHz and 1MHz (A/B)
Input Voltage	5.0V to 30.0V
Output Current	3A
Output Voltage	Ext. adjustable between 0.8V to 15.0V
Vfb Voltage Accuracy	± 12mV
Type	Fold-back, Synchronous Rectifier (w/ ext. low side transistor)
Package	HSOP-8E