Ultra-low Power Consumption LDO
MD52XX Series
CMOS Voltage Regulator With ON/OFF Switch
500mA
MD52XX is ultra-low power consumption low dropout voltage regulator (LDO)
manufactured in CMOS processes. It can deliver up to 500mA of current while
consuming only 0.6μA of quiescent current. It consists of a reference voltage
generator, an error amplifier, a current foldback circuit, and a phase compensation
circuit plus a driver transistor. The MD52XX is designed specifically for
applications where very-low IQ is a critical parameter. This device maintains low
quiescent current consumption even in dropout mode to further increase the battery life.
■ Features:
⚫ Ultra-low Quiescent Current: 0.6μA
⚫ Highly Accurate: ±2%
⚫ Dropout Voltage: 230mV@IOUT=500mA
⚫ Maximum Output Current: 500mA
⚫ Input Voltage Range: 2.2V~7.0V
⚫ Temperature Stability: ±50ppm/℃
⚫ ON/OFF Logic = Enable High
⚫ Standby Current: 10nA
⚫ COUT Discharge Circuit when EN Disable is
Active
⚫ Protections Circuits: Current Limiter, Short
Circuit, Foldback
⚫ Output Capacitor: Low ESR Ceramic
Capacitor Compatible
■ Applications:
⚫
⚫
⚫
⚫
Smart wearer
Long-life battery-powered devices
Portable mobile devices, such as mobile
phones, cameras, and so on
Wireless communication equipment
■ Typical Applications:
VIN
+
EN
DC
-
VOUT
GND
CIN=1.0uF
+
MD52XX
VOUT
COUT=1.0uF
-
MD52XX Series
Ultra-Low Power Consumption LDO
■ Pin Configuration:
SOT23-5L
Top View
SOT23-3L
Top View
VOUT
NC
VIN
5
4
3
52XX
SOT89-3L(A_Type)
Top View
2
52XXA
52XX
1
2
3
1
2
VIN
GND
EN
GND
VOUT
1
2
GND
VIN
3
VOUT
DFN1*1-4L
Top View
VIN
EN
4
3
EP
5
1
VOUT
2
GND
■ Product Selections:
Product Name VOUT (V)
MD5225
MD5228
MD5230
MD5233
MD5236
MD5240
MD5250
MD5225
MD5228
MD5230
MD5233
MD5236
MD5240
MD5250
MD5225A
MD5228A
MD5230A
MD5233A
MD5236A
MD5240A
MD5250A
MD5225
MD5228
MD5230
MD5233
2.5
2.8
3.0
3.3
3.6
4.0
5.0
2.5
2.8
3.0
3.3
3.6
4.0
5.0
2.5
2.8
3.0
3.3
3.6
4.0
5.0
2.5
2.8
3.0
3.3
Package
Ordering
Name
SOT23-5L
SOT23-5L
SOT23-5L
SOT23-5L
SOT23-5L
SOT23-5L
SOT23-5L
SOT23-3L
SOT23-3L
SOT23-3L
SOT23-3L
SOT23-3L
SOT23-3L
SOT23-3L
SOT89-3L
SOT89-3L
SOT89-3L
SOT89-3L
SOT89-3L
SOT89-3L
SOT89-3L
DFN1*1-4L
DFN1*1-4L
DFN1*1-4L
DFN1*1-4L
MD52E25QC3
MD52E28QC3
MD52E30QC3
MD52E33QC3
MD52E36QC3
MD52E40QC3
MD52E50QC3
MD52E25QA3
MD52E28QA3
MD52E30QA3
MD52E33QA3
MD52E36QA3
MD52E40QA3
MD52E50QA3
MD52A25PA1
MD52A28PA1
MD52A30PA1
MD52A33PA1
MD52A36PA1
MD52A40PA1
MD52A50PA1
MD52E25WB6
MD52E28WB6
MD52E30WB6
MD52E33WB6
2 / 14
Marking
5225
5228
5230
5233
5236
5240
5250
5225
5228
5230
5233
5236
5240
5250
5225A
5228A
5230A
5233A
5236A
5240A
5250A
5225
5228
5230
5233
Package
Information
Tape and Reel,
3000pcs
Tape and Reel,
1000pcs
Tape and Reel,
10000pcs
MD52XX Series
Ultra-Low Power Consumption LDO
MD5236
MD5240
MD5250
3.6
4.0
5.0
DFN1*1-4L
DFN1*1-4L
DFN1*1-4L
MD52E36WB6
MD52E40WB6
MD52E50WB6
5236
5240
5250
Tape and Reel,
10000pcs
Notes: 1* Customer can request to customize the output voltage ranged from 1.2V to 5V if desired voltage is not found in the selections.
2* Customer can request customization of package choice.
3* Please pay attention to the MARKING of the product package type.
■ Absolute Maximum Ratings:
PARAMETER
SYMBOL
Input Voltage
VIN
Output Voltage
VOUT
Power Dissipation
PD
Thermal Resistance
RθJB (1)
Operating Ambient
Temperature
Storage Temperature
ESD Protection
(Unless otherwise indicated: Ta=25℃)
RATINGS
UNITS
-0.3 ~ 8
V
Vss-0.3 ~ VIN+0.3V
SOT23-5
250
SOT23-3
250
mW
SOT89-3
1000
DFN1*1-4L
200
SOT23-5
180
SOT23-3
200
℃/W
SOT89-3
100
DFN1*1-4L
160
Topr
-40 ~ +85
Tstg
ESD HBM
-40 ~ +125
6000
Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
(1)
Mounted on JEDEC standard 4layer (2s2p) PCB test board
■ Notes on Use:
Input Capacitor (CIN): 1.0µF above
Output Capacitor (COUT):1.0µF above
3 / 14
℃
V
MD52XX Series
Ultra-Low Power Consumption LDO
■ Electrical Characteristics:
MD52XX Series
PARAMETER
(Unless otherwise indicated:Ta=25℃)
SYMBOL
Output
Voltage*1
VOUT(S)
Dropout
Voltage*2
VDROP
Line Regulation
ΔVOUT
ΔVIN • VOUT(s)
Load
Regulation
VOUT2
Temperature
Stability
ΔVOUT
Ta • VOUT(s)
GND Current
(VEN=VIN)
Shutdown
Current
(VEN=0)
Input Voltage
Maximum
Output Current
Current Limit*2
Short Circuit
Current
COUT Auto
Discharge
Power Supply
Rejection Ratio
EN ‘H’ Level
Voltage
EN ‘L’ Level
Voltage
EN ‘H’ Level
Current
EN ‘L’ Level
Current
IGND
ISHUT
VIN
CONDITIONS
VIN=VOUT(S)+2.0V
IOUT=10mA, VOUT(S)
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