Cyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control IC

Product Details
Customization: Available
Conductive Type: Unipolar Integrated Circuit
Integration: GSI
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Manufacturer/Factory
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500000 RMB
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  • Cyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control IC
  • Cyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control IC
  • Cyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control IC
  • Cyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control IC
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Basic Info.

Model NO.
CYH8118
Package
Sot89
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 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



Cyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control ICCyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control IC

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
VST1 - - 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
Current Consumption
During Shutdown

ISSS

-

-

1.0
uA
VEN=0V
Maximum Oscillation Frequency

fosc
 

300
  KHz VOUT=0.95xVOU
T(s), measure Waveform at LX pin
Duty Ratio1 Duty1 70 78 85 % VOUT=0.95xVOU
T(s)
Efficiency EFF1   90   %  


Shutdown Pin Input Voltage


VSH


0.75


-


-
V VOUT=0.95xVOU
T(s), judge Oscillation at LX pin

VSL1

-

-

0.3
V VOUT=0.95xVOU
T(s), judge stop at LX pin
Shutdown Pin input
Current
ISH -0.1 - 0.1 uA VEN=6V
ISL -0.1 - 0.1 uA VEN=0V

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

Cyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control ICCyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control IC 
 
 
 


Cyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control IC
 Cyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control ICCyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control IC

Cyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control ICCyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control ICCyh8118 Sot89 Synchronous Step-up DC-DC Converter with Pfm Control IC

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