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E-CMOS

EC49222 Datasheet Preview

EC49222 Datasheet

Dual Channel LDO Regulator

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Dual Channel LDO Regulator
With Enable Function
EC49222
Description
The EC49222 series are highly accurate,
dual, low noise, CMOS LDO voltage regulators
with enable function. The EN function allows the
output of each regulator to be turned off
independently, resulting in greatly reduced power
consumption.
The EC49222 series have the soft start
function to suppress the inrush current. The
current limiters' fold back circuit (it happens when
over 350mA per channel) also operates as a
short protection for the output current limiter. The
output voltage for each regulator is set
independently by metal trimming. It's also
available to offer the honors other types of VOUT
between +1.2V~+3.9V except the options shown
on ordering information.
This series are fully com compatible with low
ESR ceramic capacitors, reducing cost and
improving output stability. This high level
output stability is maintained even during
frequent load fluctuations, due to the excellent
transient response performance and high
PSRR achieved across a broad range of
frequency. It is available in the SOT23-6L,
UFN-6 and DFN-6 ‘chip-scaled' package.
Features
z Dropout:150mV @ 100mA (VOUT2.8V)
z Operating Voltage Range: +2.7V to +7.0V
z Output Voltage Range: +1.2V to +3.9V
z Output Current: 250 mA / Channel (Typ.)
z Low Power Consumption: 8μA (Typ.) / Channel
z Standby Current: 0.01pA (Typ.)
z Highly Accurate:±2% (VOUT2.0V)
z High Ripple Rejection Rate: 70 dB
z Output Current Limit Protection: 350mA/Channel
z Short Circuit Protection (150mA)
z Output ON/OFF Control Function
z Low ESR Capacitor Compatible
z SOT23-6L, UFN-6 Packages
z ROHS Compliant and 100% Lead (Pb)-Free and
Green (Halogen Free with Commercial Standard)
Application
z Mobile Phones (PDC, GSM, CDMA, IMT2000 etc.)
and Cordless phones.
z Radio Communication equipment.
z Portable games.
z Cameras, Video recorders.
z Portable AV equipment.
Block Diagram
E-CMOS Corp. (www.ecmos.com.tw)
Page 1 of 19
2008/08/01




E-CMOS

EC49222 Datasheet Preview

EC49222 Datasheet

Dual Channel LDO Regulator

No Preview Available !

Dual Channel LDO Regulator
With Enable Function
EC49222
Pin Assignment
SOT23-6L
(Top View)
UFN-6
(Bottom View)
Pin Descriptions
Pin#
SOT23-6L
1
2
3
4
5
6
Pin#
UFN-6
3
2
1
6
4
5
Symbol
EN1
VIN
EN2
VOUT2
GND
VOUT1
Function
VOUT1 Enable Control Pin
Power Input.
VOUT2 Enable Control Pin
Voltage Output 2
Ground
Voltage Output 2
Ordering Information
EC49222-X -XX X
F: Lead Free
G: Green Mode
Output
Type Code:
( VOUT+VOUT)
A: 3.3V+3.3V
B: 2.8V+3.3V
C: 2.5V+3.3V
D: 1.8V+3.3V
E: 1.5V+3.3V
F: 1.2V+3.3V
Package Type: B3= SOT23-6L
F= UFN-6
G: 2.8V+2.8V
H: 2.5V+2.8V
J: 1.8V+2.8V
K: 1.5V+2.8V
L: 1.2V+2.8V
M: 2.5V+2.5V
N: 1.8V+2.5V
P: 1.5V+2.5V
Q: 1.2V+2.5V
R: 1.8V+1.8V
S: 1.5V+1.8V
T: 1.2V+1.8V
U: 1.5V+1.5V
V: 1.2V+1.5V
W: 2.85V+2.85V
1: 3.0V+3.3V
2: 1.8V+3.0V
3: 3.0V+3.0V
4: 1.3V+2.8V
Marking Information
Package
SOT23-6L
UFN-6
Part Number
EC49222-X-B3F
EC49222-X-B3G
EC49222-X-FF
EC49222-X-FG
Marking
01VXX
01V
XX
Marking Information
The 1st to 2nd character represents the Product part. Example: EC49222=01.
The 3rd character represents the Output Voltage code. Please refer the table for Output
Voltage Code. Please refer the Output Type Code: ex. A=3.3V+3.3V, B=2.8V+3.3V...
The XX characters represents the Date Code
There are under-lines on 4th and 5th character for Green package.
There are no under-lines on 4th and 5th character for Lead Free package.
The 1st to 2nd character represents the Product part. Example: EC49222=01.
The 3rd character represents the Output Voltage code. Please refer the Output Type
Code: ex. A=3.3V+3.3V, B=2.8V+3.3V...
The XX characters represents the Date Code
There are under-lines on second lines 1st and 2nd characters for Green package.
There are no under-lines on second lines 1st and 2nd characters for Lead Free package.
E-CMOS Corp. (www.ecmos.com.tw)
Page 2 of 19
2008/08/01


Part Number EC49222
Description Dual Channel LDO Regulator
Maker E-CMOS
Total Page 19 Pages
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