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MP20048DJ-LF-Z

P1-P3P4-P6P7-P9P10-P10
MP20048
Capacitor-Free, 250mA,
Low Dropout Voltage Regulator
MP20048 Rev. 0.91 www.MonolithicPower.com 1
4/6/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP20048 is a kind of new low-dropout
(LDO) voltage regulators which uses an NMOS
as the pass element in a voltage-follower
configuration. It can get any value of output
from 1.234V to 5V. The benefit of this product is
that it can operate without any capacitors.
The MP20048 uses an advanced BICMOS
process to yield high precision. It also delivers
very low dropout voltage and low ground pin
current. It integrates the thermal-off and current
limit block to protect the devices from damage.
The MP20048 is available in a TSOT23-5
package.
FEATURES
• Stable with No Output Capacitor or Any
Capacitors
• Input Voltage Range: 1.7V to 5.5V
• Output Voltage Range:1.234V to 5V
• 62.5mV Dropout at 250mA Load
• 1% Accuracy for Initial Reference
• Thermal off and Current Limit Protection
• Available in a TSOT23-5 package
APPLICATIONS
• VCOs
• Portable/Battery-Powered Equipment
• Post-Regulation for Switching Supplies
• Point of Load Regulation for DSPs, FPGAs,
ASICs, and Microprocessors
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
IN
EN
OUT
FB
GND
VIN
C1
R1
R2
VOUT
MP20048
Typical Application Circuit
IN
EN
(optional)
(optional)
OUT
FB
GND
VIN
C1
R1
R2
C3
C2
VOUT
MP20048
Typical Application Circuit with optional output cap and feedforward cap
MP20048 – CAPACITOR-FREE, 250mA, LOW DROPOUT VOLTAGE REGULATOR
MP20048 Rev. 0.91 www.MonolithicPower.com 2
4/6/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
ORDERING INFORMATION
Part Number* Package Top Marking Free Air Temperature (T
A
)
MP20048DJ TSOT23-5 3B
–40°C to +85°C
*For Tape & Reel, add suffix –Z (eg. MP20048DJ-Z)
For Lead Free, add suffix –LF (eg.MP20048DJ–LF–Z)
PACKAGE REFERENCE
IN
GND
EN
OUT
FB
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Input Voltage .................................... 6V
Power Dissipation, P
D
@ T
A
=25°C
(2)
................................................................. 0.45W
Operating Junct. Temp (T
J
) ....... -40°C to 125°C
Storage Temperature Range ..... -65°C to 150°C
Lead Temperature (Soldering, 10sec) .....260°C
ESD Susceptibility
(3)
HBM (Human Body Mode) .......................... 2kV
MM (Machine Mode).................................. 500V
Recommended Operating Conditions
(4)
Supply Input Voltage.......................1.7V to 5.5V
Enable Input Voltage .........................0V to 5.5V
Junction Temperature ............................+125°C
Thermal Resistance
(5)
θ
JA
θ
JC
TSOT23-5.............................. 220 .... 110. . °C/W
Notes:
1) Exceeding these ratings may cause permanent damage to
the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature T
J
(MAX), the junction-to-
ambient thermal resistance θ
JA
, and the ambient temperature
T
A
. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by P
D
(MAX)=(T
J
(MAX)-
T
A
)/θ
JA
. Exceeding the maximum allowable power dissipation
will cause excessive die temperature, and the regulator will go
into thermal shutdown. Internal thermal shutdown circuitry
protects the device from permanent damage.
3) Devices are ESD sensitive. Handling precaution
recommended.
4) The device is not guaranteed to function outside its operating
conditions.
5) Measured on JESD51-7 4-layer board.
MP20048 – CAPACITOR-FREE, 250mA, LOW DROPOUT VOLTAGE REGULATOR
MP20048 Rev. 0.91 www.MonolithicPower.com 3
4/6/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
(6)
V
IN
= V
OUT(nom)
+0.5V
(6)
, V
OUT
=2.5V, V
EN
=1.7V, C
2
=0.1μF, T
A
= 25°C, unless otherwise noted.
Parameters Test Condition Min Typ Max Unit
V
IN
Input voltage range
(6)
1.7
5.5 V
Internal reference 1.221 1.234 1.247 V
V
FB
Accuracy
T
A
=25℃
-1.0 +1.0 %
V
OUT
Output voltage range
(7)
V
FB
5.5-
Z
O
(DO)*
I
OUT
V
ΔV
OUT
%/ΔV
I
N
Line regulation
(8)
1.7V≤V
IN
≤5.5V 0.01 %/V
ΔV
OUT
%/ΔI
O
UT
Load regulation
(9)
1mA≤I
OUT
≤250mA 0.0005 %/mA
V
DO
Dropout Voltage
(10)
I
OUT
=250mA 62.5 mV
Z
O
(DO)
Output impedance in
dropout
1.7V≤V
IN
≤5.5V 0.25 Ω
I
CL
Output current limit V
OUT
=0.9×V
OUT(nom)
270 450 mA
I
SC
Short-circuit current V
OUT
=0V 430 mA
I
OUT
=10mA 350 μA
I
GND
Ground pin current
I
OUT
=100mA 500 800 μA
I
SHDN
Shutdown current
(I
GND
)
V
EN
≤0.5V,V
OUT
≤V
IN
≤5.5V 0.01 1 μA
I
LEAK
Output leakage
V
EN
≤0.5V,V
OUT
≤V
IN
≤5.5V
-40℃≤T
J
≤+125℃
6.5 μA
f=100Hz
48
PSRR
Power-supply rejection
ratio
(ripple rejection)
I
OUT
=250mA
f=10kHz
23
dB
C
2
=10μF,No C
3
48
VN
Output noise voltage
BW=10Hz—100kHz
C
2
=10μF, C
3
=0.01μF 37
μV
RMS
t
STR
Startup time V
OUT
=2.5V, R
L
=25Ω,C
2
=1μF 0.5 ms
V
EN
(HI) Enable high (enabled) 1.7 V
IN
V
V
EN
(LO) Enable low (shutdown) 0 0.5 V
Shutdown Temp increasing +140
℃
T
SD
Thermal shutdown
temperature
Reset Temp decreasing +130
℃
T
J
Operating junction
temperature
125
℃
Notes:
6) Minimum V
IN
=V
OUT
+V
DO
or 1.7V
7) This version is tested at V
OUT
=2.5V
8)
100(%/V)
V]V[V
VV
Regulation Line
OUT(NOM)IN(MIN)IN(MAX)
]OUT[V]OUT[V
IN(MIN)IN(MAX)
×
×−
−
=
9)
100(%)
V
VV
Regulation Load
OUT(NOM)
]OUT[I]OUT[I
OUT(MIN)OUT(MAX)
×
−
=
10) Dropout voltage is defined as the input to output differential when the output voltage drops 100mV below its nominal value.
P1-P3P4-P6P7-P9P10-P10

MP20048DJ-LF-Z

Mfr. #:
Buy MP20048DJ-LF-Z
Manufacturer:
Monolithic Power Systems (MPS)
Description:
LDO Voltage Regulators Capless Low Noise 250mA Linear Reg
Lifecycle:
New from this manufacturer.
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