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PDF FP6277 Data sheet ( Hoja de datos )
| Número de pieza | FP6277 | |
| Descripción | 500kHz 7A High Efficiency Synchronous PWM Boost Converter | |
| Fabricantes | Feeling Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de FP6277 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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FP6277
500kHz 7A High Efficiency Synchronous PWM Boost Converter
General Description
The FP6277 is a current mode boost DC-DC converter with PWM/PSM control. Its PWM circuitry
with built-in 30mΩ high side switch and 30mΩ low side switch make this regulator highly power efficient.
The internal compensation network also minimizes external component counts to only 6. An internal
0.6V voltage is connected to error amplifier the non-inverting input as precision reference voltage.
Built-in soft-start function can reduce the inrush current.
Features
Current mode with PWM/PSM control
Input voltage range: 2.4V~4.5V
Adjustable Output up to 5.3V
Shutdown current: <1uA
Oscillator frequency: 500KHz
Reference voltage: 0.6V +/-2%
Disconnect load during shutdown
Cycle-by-cycle current limit
Low RDS(on): 30mΩ for both high and low side
Protection: OTP, OCP, SCP
Internal compensation
Internal soft-start: 7ms
Package: SOP-8L(EP)
Applications
Chargers
Handheld Devices
Portable Products
Power Bank
Typical Application Circuit
VIN
1 LX
8
VO
2 LX
7
OC
FP 6277
3 VIN
6
FB
ON/OFF 4 EN
5
GND
SOP-8L(EP)
VOUT
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.65
1/12
1 page  
FP6277
Recommended Operating Conditions
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
Supply Voltage
VIN
2.4 4.5 V
Operating Temperature Range
TA
Ambient Temperature
-40
+85 °C
DC Electrical Characteristics (VIN=3.3V, TA=25°C, unless otherwise specified)
Parameter
Symbol
Conditions
Min. Typ. Max.
Input Voltage
VIN
2.4 4.5
Under Voltage Lockout
VUVLO
2.1
UVLO Hysteresis
0.1
Quiescent Current
ICC VFB =0.65V, No switching
280
Average Supply Current
ICC VFB=0.55V, Switching
3.6
Shutdown Current
ICC VEN=GND
0.1
Linear Charge Current
ICHARGE VOUT<VIN
4.5
Operation Frequency
fOSC VFB=0.55V
500
Maximum Duty Ratio
%
90
Feedback Voltage
VREF VIN=4.5V
0.588 0.6 0.612
Enable Voltage
VEN
0.96
Shutdown Voltage
VEN
0.6
Soft-Start Time
tSS VIN=4.5V
7
High Side Switch RDS(ON)
RON-PMOS
30
Low Side Switch RDS(ON)
RON-NMOS
30
Internal Switch Current Limit
IOCP
7
Thermal Shutdown Threshold
TOTP
150
Thermal Shutdown Hysteresis
30
Unit
V
V
V
µA
mA
µA
A
kHZ
%
V
V
V
ms
mΩ
mΩ
A
℃
℃
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.65
5/12
5 Page 
Typical Application
L1 3.3µH
VIN
C1
22µ F
Optional
R4 C5
Close to PGND
1
LX
8
VO
2
LX
7
OC
FP6277
3
VIN
6
FB
4
ON/ OFF
EN
5
GND
SOP-8L(EP)
R9
28k
FP6277
VOUT
R1
73k
C3
22µ F
C4
100µF
R2
10k
Close to PGND
Note:
1. Use ceramic capacitor of X5R or X7R for C1 and C3.
2. R4 and C5 are added for reducing EMI (Electromagnetic Interference).
3. EN voltage must be less than or equal to VIN voltage.
4. The OC pin must connect a resistor R9 to ground setting current limit.
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.65
11/12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet FP6277.PDF ] | |
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