Preliminary
EUP7211
Dual 150/300mA LDO
DESCRIPTION
The EUP7211 is a dual low dropout linear regulator.
The first regulator is capable of sourcing 150mA, while
the second regulator can source up to 300mA.
The EUP7211 is stable with small ceramic output
capacitors. The performance of EUP7211 is optimized
for battery power systems to deliver low noise, low
dropout voltage, low quiescent current and excellent
line and load transient response.
The EUP7211 is available in fixed output voltages in
the 8-pin 3mm×3mm DFN leadless package.
FEATURES
Input Voltage Range: 2.5V to 5.5V
Stable with Ceramic Output Capacitor
2 LDO Outputs:
Output 1-150mA Output Current
Output 2-300mA Output Current
Low Dropout Voltage of 100mV@150mA
Low Quiescent Current of 150µA
High PSRR 70dB at 1kHz:
Thermal Shutdown Protection
Current Limit Protection
3mm×3mm DFN-8 Package
RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
Cellular Phones
Wireless Modems
PDAs
Typical Application
DS7211 Ver 0.3
Nov. 2005
1
Preliminary
Block Diagram
EUP7211
Pin Configurations
Part Number
Pin Configurations
EUP7211
DFN-8
Pin Description
PIN
V
IN
EN1
EN2
BYPASS
GND
NC
V
OUT2
V
OUT1
Pin
1
2
3
4
5
6
7
8
Input voltage of the LDO
Enable input to regulator 1
Enable input logic, enable high
Optional bypass capacitor for noise reduction
Ground
No connection
Output of regulator 2: 300mA output current
Output of regulator 1: 150mA output current
DESCRIPTION
DS7211 Ver 0.3
Nov. 2005
2
Preliminary
Ordering Information
Order Number
EUP7211-1.5/2.8JIR1
EUP7211-1.5/2.8JIR0
EUP7211-1.8/2.8JIR1
EUP7211-1.8/2.8JIR0
EUP7211-1.8/3.3JIR1
EUP7211-1.8/3.3JIR0
EUP7211-2.5/2.8JIR1
EUP7211-2.5/2.8JIR0
EUP7211-2.85/2.85JIR1
EUP7211-2.85/2.85JIR0
Package Type
DFN-8
DFN-8
DFN-8
DFN-8
DFN-8
Marking
CE
xx
EUP7211
Operating Temperature range
-40 °C to 125°C
-40 °C to 125°C
-40 °C to 125°C
-40 °C to 125°C
-40 °C to 125°C
P7211
DE
xx
P7211
DH
xx
P7211
BE
xx
P7211
FF
xx
P7211
EUP7211
□□□/□□□ □ □ □ □
Lead Free Code
1: Lead Free 0: Lead
Packing
R: Tape & Reel
Operating temperature range
I: Industry Standard
Package Type
J: DFN
Output Voltage Option
DS7211 Ver 0.3
Nov. 2005
3
Preliminary
Absolute Maximum Ratings
EUP7211
V
IN
,V
EN
--------------------------------------------------------------------------------- -0.3V to 6V
Power Dissipation (P
D
) ------------------------------------------------------ Internally Limited
Junction Temperature ------------------------------------------------------ -40°C to +125°C
Storage Temperature ------------------------------------------------------ -65°C to +150°C
Lead Temp ------------------------------------------------------------------------------
260°C
Operating Ratings
V
IN
------------------------------------------------------------------------------------ 2.5 to 5.5V
V
EN
-------------------------------------------------------------------------------------- 0V to V
IN
Junction Temperature ------------------------------------------------------ -40°C to +125°C
Thermal Resistance
θ
JA
(DFN-8) --------------------------------------------------- 60°C/W
Electrical Characteristics
V
IN
= V
OUT
+1.0V, I
OUT
=1mA, C
OUT
=1µF. Typical values and limits appearing in standard typeface are for T
J
= 25°C
Symbol
Parameter
Conditions
Min Typ Max
Units
△V
OUT
-1.5
1.5
%
Output Voltage Accuracy
Variation from nominal Vout
Reg Line
Line Regulation
Input range Vin=Vout+1V to 5.5V
-0.2
0.02
0.2
%/V
Iout=100µA to 150mA(Vout 1 & Vout 2)
0.7
2
Reg Load Load Regulation
%
Iout=100µA to 300mA(Vout)
1
2.5
Iout=150mA(Vout 1)
120
180
V
Drop
Dropout Voltage
mV
Iout=300mA(Vout 2)
240
350
Iout 1=Iout2=0
150
170
I
Q
Ground Pin Current
µA
Iout 1=150mA & Iout=300mA
250
300
Ground Pin Current in
IQ_SD
V
EN
≦
0.4V
3
5
µA
Shutdown
PSRR
Ripple Rejection
Freq.=1Khz; Cout=1.0µF; C
BYP
=10nF
70
dB
Output 1 Short to Ground
150
340
Iout(Max) Current Limit
mA
Output 2 Short to Ground
300
580
Cout=1.0µF;C
BYP
=10nF;
Noise
Output Voltage Noise
40
µVrms
BW=10~100KHz
Enable Input
Logic Low (Regulator Shutdown)
0.6
V
EN
Enable Input voltage
V
Logic High(Regulator Enable)
1.8
V
IL
<0.6V (Regulator Shutdown)
-0.5
0.01
0.5
I
EN
Enable Input Current
µA
V
IH
>1.8V (Regulator Enable)
-0.5
0.01
0.5
DS7211 Ver 0.3
Nov. 2005
4
Preliminary
Typical Operating Characteristics
EUP7211
Unless otherwise specified, C
IN
=C
COUT
=1µF Ceramic, C
BYPASS
=100nF, V
IN
=V
OUT
+1V, I
OUT
= 100µA T
A
=25°C, Enable
pin is tied to V
IN.
DS7211 Ver 0.3
Nov. 2005
5
