Preliminary Datasheet
LP3210
High Performance Regulated Charge Pump
General Description
The LP3210 is a high performance charge pump
DC/DC converter that produces a regulated 5V output.
No external inductor is required for operation. The
operating voltage range is 2.8V to Vout. Internal
soft-start circuitry effectively reduces the in-rush
current both while start-up and mode change.
The LP3210 features very low quiescent current, over
current protection and short circuit protection.
The LP3210 is available in SOT-23-6 package.
Features
2.8V to Vout Range Input Voltage
Soft Start Function
Built-In Short-Circuit Protection
Built-in Thermal Protection
Over Current Protection Function
I
Q
<1uA in Shutdown
SOT23-6 Package
RoHS Compliant and 100% Lead (Pb)-Free
Typical Application Circuit
Order Information
LP3210 -
□ □ □
F: Pb-Free
Vin
5
3
6
C+
C-
OUT
GND
1
2
4
Vin
EN
LP3210
Package Type
B6: SOT23-6
Applications
LCD Panel
Cellular and Smart mobile phone
PDA/DSC
Marking Information
Please see website.
Flash LED Driver
LP3210 – 03 Ver. 1.3 Datasheet
FEB.-2009
Page 1 of 7
Preliminary Datasheet
Functional Pin Description
P a c k a g e Ty p e
Pin Configurations
LP3210
SOT23-6
PIN
1
2
3
4
5
6
NAME
VOUT
GND
EN
CN
VIN
CP
DESCRIPTION
Output Voltage
Ground
Chip Enable (Active High)
Flying Capacitor Negative Terminal
Power Input Voltage
Flying Capacitor Positive Terminal
Function Block Diagram
LP3210 – 03 Ver. 1.3 Datasheet
FEB.-2009
Page 2 of 7
Preliminary Datasheet
Absolute Maximum Ratings
LP3210
Input Voltage to GND (V
IN)
------------------------------------------------------------------------------------ 6V
EN to GND Voltage (V
en
) --------------------------------------------------------------------- 0.3V to V
in
+0.3V
Maximum DC Output Current(Iout) ----------------------------------------------------------------------- 300mA
Operating Junction Temperature Range (T
J
) ----------------------------------------------------40
℃
to 150
℃
Maximum Soldering Temperature (at leads, 1 0sec) ----------------------------------------------------- 260
℃
Electrical Characteristics
(Over recommended operating conditions unless specified otherwise) V
IN
=3.6V,EN=High, T
A
=25
℃
)
Symbol
V
IN
V
OUT
I
Q
I
SHDN
F
OSC
I
SC
V
EN(L)
V
EN(H)
I
EN
Parameter
Input Voltage
Output Voltage Range
Quiescent Current
Shutdown Current
Oscillator Frequency
Output short Circuit Current Limit Vout<0.5V
Enable Threshold Low
Enable Threshold High
Input Low Current
No Load
EN = GND
Conditions
LP3210
Min.
Typ.
2.8
5.0
2
1
0.9
350
1.5
Max.
Vout
4
5
1.5
500
0.4
Unit
V
V
mA
µA
MHz
mA
V
V
1.2
450
V
IN
= V
EN
= 5.5V
-1
1
µA
LP3210 – 03 Ver. 1.3 Datasheet
FEB.-2009
Page 3 of 7
Preliminary Datasheet
Typical Operating Characteristics
LP3210
LP3210 – 03 Ver. 1.3 Datasheet
FEB.-2009
Page 4 of 7
Preliminary Datasheet
LP3210
LP3210 – 03 Ver. 1.3 Datasheet
FEB.-2009
Page 5 of 7
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