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 R
DS
(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
V
IN
1
LX
VO
8
V
OUT
2
LX
OC
7
FP 6277
3
VIN
FB
6
ON/OFF
4
EN
GND
5
SOP-8L(EP)
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
FP6277
Function Block Diagram
GND
OC
VIN
Adjustable
Current Limit
VO
VIN
UVLO
MUX
VDD
OTP
Error Amp.
FB
OCP
VO
VDD
0.6V
PWM
Comp.
EN
Shutdown
Circuitry
Soft
Start
Control
and
Driver
Logic
Bulk Well
Switch
LX
VDD
Oscillator
500KHz
Slope
Compensation
Current Sense
Amp.
PGND
Pin Descriptions
SOP-8L (EP)
Top View
LX
LX
VIN
EN
1
8
VO
OC
FB
GND
Name
LX
LX
VIN
EN
GND
No.
1
2
3
4
5
6
7
8
EP
I/O
I
I
P
I
P
I
I
O
P
Description
Power Switch Output
Power Switch Output
IC Power Supply
Enable Control (Active High)
IC Ground
Error Amplifier Inverting Input
Adjustable Current Limit
(The resistor must be connected to ground.)
Output Voltage Pin
IC Power Ground (Must connect to GND)
2
7
XXx-XXL
FP6277
3
6
4
5
Bottom View
FB
OC
VO
EP
(PGND)
PGND
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
2/12
FP6277
Marking Information
SOP-8L(EP)
FP6277
XXx-XXL
Halogen Free
Lot Number
Internal ID
Per - Half Month
Year
Halogen Free:
Halogen free product indicator
Lot Number: Wafer lot number’s last two digits
For Example
Lot : 123456
XXx-56L
Internal ID:
Internal Identification Code
Per-Half Month:
Production period indicator in half month time unit
For Example :
A → First Half Month of January
B → Second Half Month of January
C → First Half Month of February
D → Second Half Month of February
Year: Production year’s last digit
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
3/12
FP6277
Ordering Information
Part Number
FP6277XR-G1
Operating Temperature
-40°C ~ 85°C
Package
SOP-8L(EP)
MOQ
2500EA
Description
Tape & Reel
Absolute Maximum Ratings
Parameter
Supply Voltage
LX Voltage
EN,FB,OC,VO Voltage
Thermal Resistance (Note1)
Junction Temperature
Operating Temperature
Storage Temperature
Lead Temperature
θ
JA
T
J
T
OP
T
ST
(soldering, 10 sec)
-40
-65
SOP-8L(EP)
Symbol
V
IN
V
LX
Conditions
Min.
0
0
0
Typ.
Max.
6
7
6
+60
+150
+85
+150
+260
Unit
V
V
V
°C
/ W
°C
°C
°C
°C
Note1:
θ
JA
is measured in the natural convection at T
A
=25°C on a low effective thermal conductivity test
board of JEDEC 51-3 thermal measurement standard.
IR Re-flow Soldering Curve
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
4/12
FP6277
Recommended Operating Conditions
Parameter
Supply Voltage
Operating Temperature Range
Symbol
V
IN
T
A
Conditions
Min.
2.4
Typ.
Max.
4.5
+85
Unit
V
°C
Ambient Temperature
-40
DC Electrical Characteristics
(V
IN
=3.3V, T
A
=25
°C
, unless otherwise specified)
Parameter
Input Voltage
Under Voltage Lockout
UVLO Hysteresis
Quiescent Current
Average Supply Current
Shutdown Current
Linear Charge Current
Operation Frequency
Maximum Duty Ratio
Feedback Voltage
Enable Voltage
Shutdown Voltage
Soft-Start Time
High Side Switch R
DS
(ON)
Low Side Switch R
DS
(ON)
Internal Switch Current Limit
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
I
CC
I
CC
I
CC
V
FB
=0.65V, No switching
V
FB
=0.55V, Switching
V
EN
=GND
4.5
500
90
V
IN
=4.5V
0.588
0.96
0.6
V
IN
=4.5V
7
30
30
7
150
30
0.6
0.612
Symbol
V
IN
V
UVLO
Conditions
Min.
2.4
Typ.
Max.
4.5
Unit
V
V
V
µA
mA
µA
A
kH
Z
%
V
V
V
ms
mΩ
mΩ
A
℃
℃
2.1
0.1
280
3.6
0.1
I
CHARGE
V
OUT
<V
IN
f
OSC
%
V
REF
V
EN
V
EN
t
SS
R
ON-PMOS
R
ON-NMOS
I
OCP
T
OTP
V
FB
=0.55V
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
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