RP505K121B

Brand: Ricoh
Product Code: RP505Kxx1x
Availability: 4723

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RP505K Series (1A Step-down DC/DC Converters with Synchronous Rectifier)

Datasheet
Flyer
Design Guide
Supply Current	Typ. 40µA (VFM mode with no-load)
Standby Current	Max. 5µA
Input Voltage Range	2.3V to 5.5V (Absolute maximum rating: 6.5V)
Output Voltage Range	(Ver.A,B) 0.6V to 3.3V (Adjustable in 0.1V steps. Note: As for 0.8V or less, input voltage range is limited.) (Ver.C) 0.8V to 3.3V
Output Voltage Accuracy	(Ver.A,B) ±1.5% (VOUT≥1.2V), ±18mV (VOUT<1.2V)
Feedback Voltage Accuracy	(Ver.C) ±9mV(VFB=0.6V)
Temperature-Drift Coefficient of Output Voltage/Feedback	Typ. ±100ppm/°C
Oscillator Frequency	Typ. 2.25MHz
Oscillator Maximum Duty Cycle	Min. 100%
Built-in Driver ON Resistance	Typ. Pch. 0.23Ω, Nch. 0.20Ω(VIN=3.6V)
UVLO Detector Threshold	Typ. 2.0V
Soft-start Time	Typ. 0.15ms
LX Current Limit Circuit	Typ. 1.7A
Latch Type Protection Circuit	Typ. 1.5ms
Package	DFN(PLP)2020-8
Ordering Format	RP505Kxx1x

Delivery Time
Lead-Time	In stock: ~3 weeks, Factory LT: 10 weeks
Item Characteristics
Version	xx1B
Control	Forced PWM, PWM/VFM Auto Switching
Frequency	2.25MHz
Input Voltage	2.3V to 5.5V (Vout>=0.8V)
Output Current	1A
Output Voltage	1.2V
Output Voltage Accuracy	±1.5%
Type	MODE pin, Fixed output, Thermal Shutdown, Auto-Discharge at off state
Package	DFN(PLP)2020-8