Cyh8116 To92 Synchronous Step-up DC-DC Converter with Pfm Control IC

• shape: Flat
• Conductive Type: Unipolar Integrated Circuit
• Integration: GSI
• Application: Specific Integrated Circuits
• Type: Digital IC
• Package: To92
• Model NO.: CYH8116
• Manner of Packing: Reel
• Devices Per Bag/Reel: 1000PCS
• Ship by: DHL/FedEx/ UPS
• Lead Time: 7 Working Days After Receiving Payment
• Trademark: CY
• Origin: China
• HS Code: 8542399000
• Production Capacity: 200000PCS/Year

Product Description

General Description

The CYH8118 Series is a Synchronous step-up DC/DC Converter with PFM Control. With the CYH8118 Series, a step-up switching DC/DC converter can be configured by using an external coil, capacitor. The built-in MOSFET is turned off by a protection circuit when the voltage at the LX pin exceeds the limit to prevent it from being damaged.


Features

• External parts: Coil, capacitor
• Output voltage: 2.1V to 5.5V
• Maximum Oscillation frequency :300KHz
• Accuracy of ±2%
• High efficiency: 95%
• Package: SOT23-5 and SOT89

Applications    

• Digital cameras
• Electronic notebooks and PDAS
• Portable CD/MD players
• Cameras , video equipment
• Communications equipment
• Power supply for microcomputers

Pin Assignment




Electrical Characteristics
(Unless otherwise specified,Ta = 25ºC)

PARAMETER	SYMBOL	MIN	TYP	MAX	UNITS	CONDITION
Output Voltage	VOUT	VOUT (S) ×0.98	VOUT	VOUT (S) ×1.02	V	-
Input Voltage	VIN	-	-	7.5	V	-
Operation Start Voltage	VST1		-	0.9	V	IOUT=1mA VOUT=2.2V~4.2V
Operation Start Voltage	V ST1	-	-	1.2	V	IOUT=1mA VOUT=4.2V~5.5V
Input Current At No Load	ISS	-	15	25	uA	VIN=1.8V, VOUT=3.0V
			25	35	uA	VIN=0.9V, VOUT=3.0V
Current Consumption    2	ISS2	-	6	10	uA	VOUT=VOUT(S) +0.5V
Maximum Oscillation Frequency	fosc		300		KHz	VOUT=0.95xVOUT (S), measure Waveform at LX pin
Duty Ratio1	Duty1	70	78	85	%	VOUT=0.95xVOUT (S)
Efficiency	EFF1		90		%

Remark: VOUT(S) specified above is the set output voltage value,and VOUT is the typical value of the actual output voltage



 

 

 

 TO92 Outline Dimensions