AP2129
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
Description
Pin Assignments
The AP2129 is a 300mA, positive Voltage regulator ICs fabricated by
CMOS process. The AP2129 provides two kinds of output voltage
operation modes for setting the output voltage. Fixed output voltage
mode senses the output voltage on VOUT, adjustable output voltage
(Top View)
Pin 1 Mark
mode needs two resistors as a voltage divider.
The AP2129 series have features of low dropout voltage, low noise,
high output voltage accuracy, and low current consumption which
make them ideal for use in various battery-powered devices.
VIN
1
6
VOUT
GND
2
5
NC
Shutdown
3
4
NC
The AP2129 has 1.0V, 1.2V, 1.8V, 2.6V, 2.8V, 3.0V and 3.3V fixed
voltage version and 0.8V to 4.5V adjustable voltage version.
DFN-1.5x2-6
The AP2129 series are available in DFN-1.5x2-6 (1.0V, 1.2V, 1.8V,
2.6V, 2.8V, 3.0V, 3.3V) and SOT-23-5 (1.0V, 1.2V, 3.3V, ADJ)
packages.
(Top View)
Features
Wide Operating Voltage: 1.8V to 6V
High Output Voltage Accuracy: ±2%
High Ripple Rejection: 65dB@ f = 1kHz, 45dB@ f = 10kHz
Low Standby Current: 0.1µA
Low Quiescent Current: 60µA Typical
Low Output Noise: 60µVrms
Short Current Limit: 50mA
Over Temperature Protection
Compatible with Low ESR Ceramic Capacitor: 1µF for CIN and
COUT
Excellent Line/Load Regulation
Soft Start Time: 50µs
Auto Discharge Resistance: RDS(ON) = 60
AP2129
Document number: DS41213 Rev. 2 - 2
Shutdown
1
GND
2
VIN
3
5
ADJ/NC
4
VOUT
SOT-23-5
Applications
Datacom
Notebook Computers
Mother Board
1 of 13
www.diodes.com
July 2018
© Diodes Incorporated
AP2129
Typical Applications Circuit
VIN
VOUT
VIN
VOUT
AP2129
R1
Shutdown
ADJ
R2
COUT
1F
GND
CIN
1F
VOUT=0.8*(1+R1/R2)V
VIN
VOUT
VIN
VOUT
AP2129
Shutdown
COUT
1F
GND
CIN
1F
VOUT=1.0V, 1.2V, 1.8V, 2.6V, 2.8V, 3.0V, 3.3V
Pin Descriptions
Pin Number
Pin Name
DFN-1.5x2-6
SOT-23-5
1
3
2
2
GND
3
1
Shutdown
4, 5
—
NC
—
5
ADJ/NC
6
4
VOUT
AP2129
Document number: DS41213 Rev. 2 - 2
VIN
Function
Input Voltage
Ground
Active High Enable Input Pin. Logic high=enable, logic low=shutdown
No Connection
Adjust Output for ADJ version/ No Connection for Fixed Version
Regulated Output Voltage
2 of 13
www.diodes.com
July 2018
© Diodes Incorporated
AP2129
Functional Block Diagram
3
1
UVLO &
Shutdown
Logic
Shutdown
VIN
Foldback
Current Limit
Thermal
Shutdown
6
VOUT
3MΩ
4, 5
NC
VREF
2
GND
1
3
UVLO &
Shutdown
Logic
Shutdown
VIN
Foldback
Current Limit
Thermal
Shutdown
4
VOUT
3MΩ
5
ADJ
VREF
GND
2
AP2129
Document number: DS41213 Rev. 2 - 2
3 of 13
www.diodes.com
July 2018
© Diodes Incorporated
AP2129
Absolute Maximum Ratings (Note 1)
Symbol
Rating
Unit
6.5
V
-0.3 to VIN +0.3
V
VIN
Input Voltage
VCE
Shutdown Input Voltage
IOUT
Output Current
450
mA
Junction Temperature
+150
°C
-65 to +150
°C
+260
°C
TJ
TSTG
Storage Temperature Range
TLEAD
Lead Temperature (Soldering, 10sec)
θJA
Note 1:
Parameter
DFN-1.5x2-6
100
SOT-23-5
250
Thermal Resistance (Junction to Ambient)
°C/W
ESD
ESD (Human Body Model)
6000
V
ESD
ESD (Machine Model)
200
V
Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied.
Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Symbol
Parameter
Min
Max
Unit
VIN
Input Voltage
1.8
6
V
TA
Operating Ambient Temperature Range
-40
+85
°C
AP2129
Document number: DS41213 Rev. 2 - 2
4 of 13
www.diodes.com
July 2018
© Diodes Incorporated
AP2129
Electrical Characteristics
AP2129-1.0/1.2/1.8/2.6/2.8/3.0/3.3 Electrical Characteristics
(@CIN =1µF, COUT = 1µF, Bold type applies over -
40°C TJ +85°C, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
98%*
VOUT
—
102%*
VOUT
V
Output Voltage
VIN = VOUT +1V, (Note 2)
1mA IOUT 300mA
Input Voltage
—
1.8
—
6
V
IOUT(MAX)
Maximum Output
Current
—
—
450
—
mA
∆VOUT/(∆IOUT*VOUT)
Load Regulation
—
—
1.5
%/A
∆VOUT
/(∆VIN*VOUT)
Line Regulation
—
—
0.06
%/V
VOUT = 1.0V, IOUT = 300mA
—
800
—
VOUT = 1.2V, IOUT = 300mA
—
600
—
VOUT = 1.8V, IOUT = 300mA
—
600
700
—
170
300
VOUT
VIN
VDROP
Dropout Voltage
VIN-VOUT = 1V, (Note 2), 1mA IOUT
300mA
VOUT +0.5V VIN 6V, (Note 2), IOUT =
30mA
VOUT = 2.6V/2.8V/3.0V/3.3V, IOUT =
300mA
mV
Quiescent Current
VIN = VOUT +1V, IOUT = 0mA
—
60
90
µA
ISTD
Standby Current
VIN = VOUT +1V, VShutdown in off mode
—
0.1
1.0
µA
f = 100Hz
—
65
—
dB
PSRR
Power Supply
Rejection Ratio
Ripple 1Vp-p,
VIN = VOUT +1V
f = 1kHz
—
65
—
dB
f = 10kHz
—
45
—
dB
IQ
(∆VOUT/VOUT)
Output Voltage
Temperature Coefficient
IOUT = 30mA, -40°C TJ +85°C
—
±100
—
ppm/°C
Output Current Limit
VIN-VOUT = 1V, VOUT = 0.98*VOUT
—
400
—
mA
Short Current Limit
VOUT = 0V
—
50
—
mA
Soft Start Time
—
—
50
—
µs
RMS Output Noise
TA = +25°C, 10Hz f 100kHz
—
60
—
µVrms
—
Shutdown "High"
Voltage
Shutdown Input Voltage "High"
1.5
—
6
V
—
Shutdown "Low" Voltage
Shutdown Input Voltage "Low"
0
—
0.4
V
—
VOUT Discharge
MOSFET RDS(ON)
Shutdown Input Voltage "Low"
—
60
—
—
Shutdown Pull Down
Resistance
—
—
3
—
M
—
Thermal Shutdown
—
—
+165
—
°C
—
Thermal Shutdown
Hysteresis
—
—
+30
—
°C
θJC
DFN-1.5x2-6
—
20
—
Thermal Resistance
SOT-23-5
—
150
—
/∆T
ILIMIT
ISHORT
tUP
VNOISE
Note 2:
°C/W
VIN = 2.8V for 1.0 and 1.2 version.
AP2129
Document number: DS41213 Rev. 2 - 2
5 of 13
www.diodes.com
July 2018
© Diodes Incorporated
AP2129
Electrical Characteristics (Cont.)
AP2129-ADJ Electrical Characteristics
(@CIN =1µF, COUT = 1µF, Bold type applies over -40°C TJ +85°C, unless
otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
0.748
0.8
0.816
V
Reference Voltage
VIN = 1.8V
1mA IOUT 300mA
Input Voltage
—
1.8
—
6
V
IOUT(MAX)
Maximum Output
Current
—
—
450
—
mA
∆VOUT/(∆IOUT*VOUT)
Load Regulation
VIN-VOUT = 1V, 1mA IOUT 300mA
—
—
1.5
%/A
∆VOUT
/(∆VIN*VOUT)
Line Regulation
VOUT +0.5V VIN 6V, IOUT = 30mA
—
—
0.06
%/V
Quiescent Current
VIN = VOUT +1V, IOUT = 0mA
—
60
90
µA
ISTD
Standby Current
VIN = VOUT +1V, VShutdown in off mode
—
0.1
1.0
µA
f = 100Hz
—
65
—
dB
PSRR
Power Supply
Rejection Ratio
Ripple 1Vp-p,
VIN = VOUT +1V
f = 1kHz
—
65
—
dB
f = 10kHz
—
45
—
dB
VREF
VIN
IQ
(∆VOUT/VOUT)
Output Voltage
Temperature Coefficient
IOUT = 30mA, -40°C TJ +85°C
—
±100
—
ppm/°C
Output Current Limit
—
—
400
—
mA
Short Current Limit
VOUT = 0V
—
50
—
mA
Soft Start Time
—
—
50
—
µs
RMS Output Noise
TA = +25°C, 10Hz f 100kHz
—
60
—
µVrms
—
Shutdown "High"
Voltage
Shutdown Input Voltage "High"
1.5
—
6
V
—
Shutdown "Low" Voltage
Shutdown Input Voltage "Low"
0
—
0.4
V
—
VOUT Discharge
MOSFET RDS(ON)
Shutdown Input Voltage "Low"
—
60
—
—
Shutdown Pull Down
Resistance
—
—
3
—
M
—
Thermal Shutdown
—
—
+165
—
°C
—
Thermal Shutdown
Hysteresis
—
—
+30
—
°C
θJC
DFN-1.5x2-6
—
20
—
Thermal Resistance
SOT-23-5
—
150
—
/∆T
ILIMIT
ISHORT
tUP
VNOISE
AP2129
Document number: DS41213 Rev. 2 - 2
°C/W
6 of 13
www.diodes.com
July 2018
© Diodes Incorporated
AP2129
Performance Characteristics
Output Voltage vs. Output Current
Supply Current vs. Input Voltage
100
3.5
o
3.0
80
70
2.5
Supply Current (A)
Output Voltage (V)
TC=+25 C
VOUT=0.8V
No Load
90
2.0
1.5
o
TC=-40 C
1.0
o
TC=+25 C
60
50
40
30
20
o
TC=+125 C
VIN=4.4V
0.5
10
0.0
0
0
50
100
150
200
250
300
350
400
450
500
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Output Current (mA)
Input Voltage(V)
Supply Current vs. Output Current
Supply Current vs. Case Temperature
120
6.0
60
VOUT=0.8V
VIN=1.8V
110
TC=+25 C
100
VOUT=0.8V
VIN=1.8V
No Load
58
o
56
Supply Current (A)
Supply Current (A)
54
90
80
70
60
52
50
48
46
44
50
40
0.00
42
0.03
0.06
0.09
0.12
0.15
0.18
0.21
0.24
0.27
40
-40
0.30
-20
0
20
40
60
80
o
Case Temperature( C)
Output Current (A)
Short Current vs. Case Temperature
Output Voltage vs. Case Temperature
0.90
VOUT=0.8V
VIN=1.8V
Ouput short to GND
320
0.86
VOUT=0.8V
VIN=1.8V
0.84
240
Output Voltage (V)
Short Current (mA)
280
IO=10mA
IO=150mA
0.88
200
160
120
80
0.82
0.80
0.78
0.76
0.74
40
0.72
0.70
0
-30
-15
0
15
30
45
60
-30
75
Document number: DS41213 Rev. 2 - 2
0
15
30
45
60
75
Case Temperature ( C)
Case Temperature ( C)
AP2129
-15
o
o
7 of 13
www.diodes.com
July 2018
© Diodes Incorporated
AP2129
Performance Characteristics (Cont.)
Output Voltage vs. Input Voltage
1.0
1.0
0.9
0.9
0.8
0.8
0.7
0.7
Output Voltage (V)
Output Voltage (V)
Output Voltage vs. Output Current
0.6
0.5
0.4
o
TC=-40 C
o
0.3
TC=+125 C
0.6
0.5
0.4
TC=-40 C
0.3
TC=+25 C
o
o
o
TC=+125 C
o
TC=+25 C
0.2
0.2
VOUT=0.8V
VIN=1.8V
0.1
VOUT=0.8V
No Load
0.1
0.0
0.0
0.0
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Output Current (A)
Input Voltage(V)
Output Voltage vs. Input Voltage (IOUT=300mA)
Load Transient
(Conditions: CIN=COUT=1F, VIN=2.5V, VOUT=0.8V)
1.0
0.9
0.8
Output Voltge (V)
0.7
IO UT
0.6
0.5
0.4
o
0.3
TC=-40 C
0.2
TC=+25 C
VO U T
o
o
TC=+85 C
VOUT=0.8V
0.1
0.0
0
1
2
3
4
5
6
Input Voltage (V)
Load Transient
(Conditions: CIN=COUT=1F, VIN=4.4V, VOUT=3.3V)
Line Transient
(Conditions: IOUT=30mA, CIN=COUT=1µF,
VIN=2.5 to 3.5V, VOUT=0.8V)
IOU T
VIN
VO U T
VOU T
AP2129
Document number: DS41213 Rev. 2 - 2
8 of 13
www.diodes.com
July 2018
© Diodes Incorporated
AP2129
Performance Characteristics (Cont.)
Line Transient
(Conditions: IOUT=30mA, CIN=COUT=1F,
VIN=4 to 5V, VOUT=3.3V)
Soft Start Time
(Conditions: IOUT=0mA, CIN=COUT=1F,
VShutdown =0 to 2V, VOUT=3.3V)
VIN
VO U T
VOU T
VShutdow n
Soft Start Time
(Conditions: IOUT=0mA, CIN=COUT=1µF,
VShutdown =0 to 2V, VOUT=0.8V)
PSRR vs. Frequency
100
IOUT=10mA
IOUT=300mA
ripple=1Vpp, COUT=1F, VOUT=0.8V
90
80
PSRR (dB)
70
VO U T
VShutdow n
60
50
40
30
20
10
0
100
1000
10000
100000
Frequency (Hz)
PSRR vs. Frequency
Power Dissipation vs. Case Temperature
2.0
100
IOUT=10mA
IOUT=300mA
ripple=1Vpp, COUT=1F, VOUT=3.3V
90
80
1.6
Power Dissipation (W)
PSRR (dB)
70
60
50
40
30
1.4
1.2
1.0
0.8
0.6
20
0.4
10
0.2
0
100
1000
10000
100000
Document number: DS41213 Rev. 2 - 2
0.0
-40
-20
0
20
40
60
80
100
120
o
Frequency (Hz)
AP2129
VOUT=0.8V
No heatsink
1.8
Case Temperature ( C)
9 of 13
www.diodes.com
July 2018
© Diodes Incorporated
AP2129
Ordering Information
AP2129 X - X X X
Product Name
Package
SOT-23-5
DFN-1.5x2-6
Package
Output Voltage
Packing
RoHS/Green
K : SOT-23-5
DN : DFN-1.5x2-6
ADJ : ADJ Output
1.0 : Fixed Output 1.0V
1.2 : Fixed Output 1.2V
1.8 : Fixed Output 1.8V
2.6 : Fixed Output 2.6V
2.8 : Fixed Output 2.8V
3.0 : Fixed Output 3.0V
3.3 : Fixed Output 3.3V
TR : Tape & Reel
G1 : RoHS Compliant
and Green
Temperature Range
Part Number
Marking ID
Packing
AP2129K- ADJTRG1
GEJ
Tape & Reel
AP2129K-1.0TRG1
GEK
Tape & Reel
AP2129K-1.2TRG1
GEL
Tape & Reel
AP2129K-3.3TRG1
GEM
Tape & Reel
AP2129DN-1.0TRG1
LA
Tape & Reel
AP2129DN-1.2TRG1
MA
Tape & Reel
AP2129DN-1.8TRG1
LB
Tape & Reel
AP2129DN-2.6TRG1
MB
Tape & Reel
AP2129DN-2.8TRG1
LC
Tape & Reel
AP2129DN-3.0TRG1
MC
Tape & Reel
AP2129DN-3.3TRG1
LD
Tape & Reel
-40 to +85°C
-40 to +85°C
AP2129
Document number: DS41213 Rev. 2 - 2
10 of 13
www.diodes.com
July 2018
© Diodes Incorporated
AP2129
Package Outline Dimensions (All dimensions in mm(inch).)
Package Type: DFN-1.5x2-6
0.174(0. 007)
0.326(0. 013)
N6
0.200(0. 008)
MIN.
N4
1.424(0. 056)
1.576(0. 062)
1.924(0.076)
2.076(0.082)
1.000(0. 039)
1.200(0. 047)
0.800(0.031)
1.000(0.039)
(1)
Pin 1 Mark
PIN #1 IDENTIFICATION
See DETAIL A
N3
0.200(0. 008)
0.300(0. 012)
N1
0.500(0. 020)
TYP.
0.000(0. 000)
0.050(0. 002)
DETAIL A
0.350(0. 014)
0.450(0. 018)
0. 127(0. 005)
REF
2
1
2
1
2
1
Pin 1 options
AP2129
Document number: DS41213 Rev. 2 - 2
11 of 13
www.diodes.com
July 2018
© Diodes Incorporated
AP2129
Package Outline Dimensions (Cont. All dimensions in mm(inch).)
(2)
Package Type: SOT-23-5
AP2129
Document number: DS41213 Rev. 2 - 2
12 of 13
www.diodes.com
July 2018
© Diodes Incorporated
AP2129
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2018, Diodes Incorporated
www.diodes.com
AP2129
Document number: DS41213 Rev. 2 - 2
13 of 13
www.diodes.com
July 2018
© Diodes Incorporated
