Cyp9459 Sot23-6 E Meter 60V 500mA DC DC Step-Down Converter IC

• Customization: Available
• Conductive Type: Unipolar Integrated Circuit
• Integration: GSI
• Model NO.: Cyp9459
• Package: Sot23-6
• Manner of Packing: Reel
• Devices Per Bag/Reel: 3000PCS
• Ship by: DHL/FedEx/ UPS
• Lead Time: 7 Working Days After Receiving Payment
• shape: Flat
• Trademark: CY
• Origin: China
• HS Code: 8542399000
• Production Capacity: 200000PCS/Year

Product Description

General Description

The CYP9459 is a monolithic, step-down, switch-mode converter with a built-in power MOSFET. It achieves a 0.5A peak-output current over a wide input supply range with excellent load and line regulation. Current-mode operation provides a fast transient response and eases loop stabilization.
The wide input range (4.5V to 60V) provides high efficiency output of 0.5A current, Low shutdown mode quiescent current of 0.1μA is suitable for battery-powered applications.
Fault condition protections include cycle-by-cycle current limiting and thermal shutdown.



Features

• Output 0.5A peak current
• 4.5V to 60 V operating input range
• 1Ω internal power MOSFET
• 480KHz fixed switching frequency
• Stable with Low-ESR Ceramic Output Capacitors
• Cycle-by-Cycle Over-Current Protection
• Thermal shutdown protection
• >90% efficiencyOutput voltage: adjustable from +0.81V to 0.95Vin
• Low shutdown mode current:<1μA
• SOT23-6 package

Applications    

• High voltage power conversion
• Automotive systems
• Industrial power system
• Distributed power system
• Battery powered system

Recommended Operating Conditions


Electrical Characteristics
Vin=12V,Tamb= 25ºC,unless specified otherwise.

Parameter	Symbol	Test Conditions	Min	Typ	Max	Unit
Feedback Voltage	Vfb		0.792	0.812	0.832	V
Upper Switch ON Resistance	Rsw	Vbst-Vsw=5V		1		Ω
Upper Switch Leakage	Iswleak	Ven=0V, Vsw=0V			1	μA
Limiting Current	Ilim		1.0	1.25	1.5	A
Oscillator Frequency	Fosc		380	480	580	KHz
Turn-back frequency	Fsw-f	Vfb=0V		150		KHz
Under-voltage on voltage	Vuvlo-r		2.9	3.3	3.73	V
Under-voltage lockout	Vuvlo-f		2.65	3.05	3.45	V
Minimum Switch ON Time	Ton min			100		ns
Enable on voltage	Venr			1.35		V
Enable off  voltage	Venf			1.17		V
EN input current	Ien	Ven=2V		3.1		μA
		Ven=0V		0.1		μA
Quiescent Current	Iq	Ven=2V, Vfb=1V		0.73	0.86	mA
Shutdown Current	Is	Ven=0V		0.1	1.0	μA
Thermal Shutdown	Tsd			165		ºC