LP6222-03 Sep.-2021 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 1 of 9
Preliminary Datasheet LP6222
High Efficiency Boost DC/DC Convertor
General Description
The LP6222 is a current mode boost DC-DC converter.
Its PWM circuitry with built-in 4.8A current power
MOSFET makes this converter highly power efficiently.
The LP6222 implements a constant frequency 1MHz
PWM control scheme. The high frequency PWM
operation also saves board space by reducing external
component sizes. The LP6222 features automatic
shifting to pulse frequency modulation mode at light
loads.Highly integration and internal compensation
network minimizes as 6 external component counts.
Optimized operation frequency can meet the
requirement of small LC filters value and low operation
current with high efficiency.
The LP6222 includes under-voltage lockout, current
limiting, and thermal overload protection to prevent
damage in the event of an output overload. The
LP6222 is available in a small SOT23-6&ESOP8
package.
Order Information
LP6222 □ □ □
F: Halogen Free and Pb Free
Package Type
B6: SOT23-6
SP:ESOP8
Applications
Battery products
Host Products
Panel
Features
Up to 90% efficiency
Output to Input Disconnect at Shutdown Mode
Shut-down current:<1uA
Output voltage Up to 9V
Internal Compensation, Soft-start
1MHz fixed frequency switching
High switch on current:4.8A(ESOP8)
Available in SOT23-6&ESOP8 Package
Typical Application Circuit
VIN
LX
VIN
EN
GND
FB
C1
22uF
C2
22uF
R1
110K
R2
15K
4.7uH
VOUT(5V)
ISET
R3
30K
ON
OFF
Marking Information
Device
Marking
Package
Shipping
LP6222B6F
LPS
5DYWX
SOT23-6
3K/REEL
LP6222SPF
LPS
LP6222
YWXX
ESOP8
4K/REEL
Marking indication:
Y:Production year W:Production period X:Production batch
LP6222-03 Sep.-2021 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 2 of 9
Preliminary Datasheet LP6222
Functional Pin Description
Package Type
Pin Configurations
SOT23-6
ESOP8
LX
LX
1
2
3
4
5
6
7
8
FB
GND EN
VIN
ISET
GND
GND
9
Pin
Name
Description
SOT23-6
ESOP8
1
3/4
LX
switching pin.
2
1/5/9
GND
Ground.
3
2
FB
Regulation Feedback Input. Connect to an external resistive voltage
divider from the output to FB to set the output voltage.
4
8
EN
Regulator ON/OFF Control Input. A logic high input(V
EN
>1.4V) turns on
the regulator. A logic low input(V
EN
<0.4V) puts the LP6222 into low
current shutdown mode.
5
7
VIN
Power Supply pin.
6
6
ISET
Set LX current.