ACE ACE511118BM+H 500ma ldo linear voltage regulator Datasheet

ACE511
Technology
500mA LDO Linear Voltage Regulator
Description
The ACE511 series is a low-drop-out ( LDO ) linear regulator. The devices have been optimized for
applications where fast transient response and minimum input voltages are critical.
At light loads the typical dropout voltage is 10mV, and at full load the maximum dropout voltage is less
than 500mV. The internal over-current protection and thermal protection ,makes the device extremely
easy to use in a wide range of applications.
Features
•
•
•
•
•
Low dropout performance
Output current of 500mA typical
Thermal shutdown protection
Fixed 1.5V/1.8V/2.5V/2.8V/3.0V/3.3V/3.6V output voltages available
SOT-89-3, and SOT-23-3 packages available
Application
•
•
•
•
•
Active SCSI terminators
Battery chargers
High efficiency linear regulators
Wireless communication systems
Digital camera
Absolute Maximum Ratings
Parameter
Symbol
Max
Unit
Input supply voltage
Thermal resistance junction to ambient
SOT-89-3
SOT-23-3
Junction temperature
Storage temperature range
Lead temperature (soldering) 10sec
VIN
6
V
θJA
TJ
TSTG
TLEAD
O
C/W
180
230
O
150
C
O
- 10 to 150
C
O
260
C
Note : Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive
into, negative out of the specified terminal.
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1
ACE511
Technology
500mA LDO Linear Voltage Regulator
Packaging Type
SOT-89-3
ACE5111XXAM+
1
2
3
ACE5112XXAM+
1
VOUT
1
GND
2
GND
2
VIN
3
VIN
3
VOUT
SOT-23-3
3
ACE5111XXBM+
1
2
ACE5112XXBM+
1
VOUT
1
GND
2
VIN
2
VOUT
3
GND
3
VIN
Ordering information
Selection Guide
ACE511 X XX XX + H
Halogen - free
Pb - free
AM : SOT-89-3
BM : SOT-23-3
Output Voltage:
1.5V/1.8V/2.5V/2.8V/3.0V/3.3V/3.6V
Pin
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ACE511
Technology
500mA LDO Linear Voltage Regulator
Power Dissipation Table
Package
AM
BM
θJA
( C /W )
180
230
O
TA≤ 25 OC
Power rating(mW)
694
543
TA=70 OC
Power rating(mW)
444
348
TA= 85 OC
Power rating (mW)
361
283
Note:
1.Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator
will go into Thermal shutdown.
2.TJ: Junction Temperature Calculation TJ = TA + ( PD x θJA )
The θJA numbers are guidelines for the thermal performance of the device/PC-board system. All of the above
assume no Ambient airflow.
3.θJA : Thermal Resistance-Junction to Ambient, DF: Derating factor, Po: Power consumption
Recommended Operating Conditions
Parameter
Symbol
Operating Conditions
Min.
Input Voltage
VIN
2.8
Load Current
(with adequate heat sinking)
IO
5
Junction temperature Range
TJ
Typ.
Max.
5.5
Unit
V
mA
125
O
C
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ACE511
Technology
500mA LDO Linear Voltage Regulator
Electrical Characteristics
Operating Conditions: VIN = 5V, IOUT =10mA; TJ=25 ℃,unless otherwise specified.(COUT=2.2uF, ,CIN=2.2 uF)
Symbol
Test Conditions
Min
Output Voltage
VOUT
ACE511-1.5 (VIN=3.3V)
ACE511-1.8 (VIN=3.3V)
ACE511-2.5
ACE511-2.8
ACE511-3.0
ACE511-3.3
ACE511-3.6
1.470
1.764
2.450
2.744
2.940
3.234
3.528
Line Regulation
VSR
VIN=(VOUT+1)V to 5.5V
Load Regulation (2)
VLR
Ground Current
IGND
Dropout Voltage (3)
Parameter
Typ Max
1.5
1.8
2.5
2.8
3.0
3.3
3.6
Unit
1.530
1.836
2.550
2.856
3.060
3.366
3.672
V
1
%
1
1.5
%
IOUT=10mA
65
uA
VD
IOUT=500mA
0.8
V
Current Limit
ILIMIT
VOUT=0V
0.7
A
Output Voltage Temperature Coefficient
TC
Note 1
50
ppm/℃
Thermal Protection
TPRO
Thermal protection temperature
Protection Hysterisys
150
20
RMS Output Noise
VN
TA=25 OC,,10HZ ≤f≤10KHZ,
0.003
%/VO
Ripple Rejection Ratio
PSRR
f = 120Hz,
51
dB
VIN=(VOUT+1)V
IOUT=10~250mA
IOUT=10~500mA
O
C,
Notes:
1. Output voltage temperature coefficient is the worst case voltage change divided by the total temperature range.
2. Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load
regulation in the load range from 100μA to 500mA. Changes in output voltage due to heating effects are covered by the
thermal regulation specification.
3. Dropout voltages is defined as the input to output differential at which the output voltage drops 2% below its nominal value
measured at 1V differential.
VER 1.2
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ACE511
Technology
Typical
500mA LDO Linear Voltage Regulator
Applications
Fix Voltage Regulator:
ACE511X-XX
VIN
Vin
Vout
VOUT
GND
+1uF
Cin
+1uF
Cout
Application Note
1.Output voltage temperature coefficient is the worst case voltage change divided by the total
temperature range.
Load Regulator
Output Current (mA)
Load transient response
Time (250us/Div)
Quiescent Current vs IOUT
Output Current (mA)
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ACE511
Technology
500mA LDO Linear Voltage Regulator
Packing Information
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ACE511
Technology
500mA LDO Linear Voltage Regulator
Packing Information
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ACE511
Technology
500mA LDO Linear Voltage Regulator
Notes
ACE does not assume any responsibility for use as critical components in life support devices or systems
without the express written approval of the president and general counsel of ACE Electronics Co., LTD.
As sued herein:
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and shoes failure to perform when properly used in
accordance with instructions for use provided in the labeling, can be reasonably expected to result in
a significant injury to the user.
2. A critical component is any component of a life support device or system whose failure to perform can
be reasonably expected to cause the failure of the life support device or system, or to affect its safety
or effectiveness.
ACE Technology Co., LTD.
http://www.ace-ele.com/
VER 1.2
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