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ACE515A
Technology Description
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
ACE515A series are 300mA, positive voltage regulator ICs fabricated by CMOS process. Each of these ICs is equipped with a voltage reference, an error amplifier, a resistor network for setting output voltage, a chip enable circuit, a current limit circuit and OTSD (over temperature shut down) circuit to prevent the IC from over current and over temperature. The ACE515A series have features of high ripple rejection, low dropout voltage, low noise, high output voltage accuracy and low current consumption which make them ideal for use in various battery-powered apparatus. The ACE515A have 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.15V and 4.2V fixed voltage versions. These ICs are available in tiny SC-70-5 and SC-82 packages as well as industry standard SOT-23-3 and SOT-23-5 packages.
Features
* * * * * * * * * * * * * * *
Excellent Ripple Rejection: 70dB Typical (1.8V Version) Low Dropout Voltage: 65mV (IOUT=100mA, 3.3V Version) Low Standby Current: 0.01A Typical Low Quiescent Current: 60A Typical Extremely Low Noise: 50Vrms Typical Maximum Output Current: 300mA (Min.) High Output Voltage Accuracy: 2% Compatible with Low ESR Ceramic Capacitor Excellent Line/ Load Regulation
Application
CDMA/ GSM Cellular Handsets Battery-powered Equipments Laptops, Palmtops, Notebook Computers Hand-held Instruments PCMCIA Cards Portable Information Appliances
VER 1.2
1

Technology Absolute Maximum Ratings
Parameter Input voltage Enable Input Voltage Output Current Junction Temperature Storage Temperature Range Lead Temperature (Soldering, 10sec) Thermal Resistance SOT-23-3 SOT-23-5 SC-70-5 SC-82 ESD (Human Body Model) ESD (Machine Model)
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
Symbol VIN VCE IOUT TJ TSTG TLEAD JA ESD ESD
Max 6.5 -0.3 to VIN+0.3 450 150 -65 to 150 260 200 200 300 300 6000 400
Unit V V mA /W V V
Note 1: 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.
Packaging Type
SOT-23-5 /SC-70-5
5 4
SOT-23-3
3 4
SC-82
3
1
2
3
1
2
1
2
Pin Number Symbol SOT-23-5 / SC-70-5 SOT-23-3 SC-82 1 3 4 VIN 2 1 2 GND 3 4 5 2 1 3 CE NC VOUT
Function Input voltage Ground Active high enable input pin, Logic high=enable, logic low=shutdown No connection Regulated output voltage
VER 1.2
2

Technology Ordering information
Selection Guide ACE515A XX XX + H
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
Halogen - free Pb - free BN: SOT-23-5 BM: SOT-23-3 HN: SC-70-5 QM: SC-82 Output Voltage 1.5V/2.8V.....4.2V
Functional Block Diagram
SOT-23-3
A(B) A SOT-23-5 / SC-70-5 B SC-82
Recommended Work Conditions
Item Input Voltage Operating Ambient Temperature Symbol Min Max Unit VIN VOUT+0.5V 6 V TA -40 85
VER 1.2
3

Technology Electrical Characteristics
ACE515A-1.8 Electrical Characteristics
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
(VIN=2.8V, TA=25, CIN=1F, Bold typeface applies over -40TJ85, unless otherwise specified.)
Parameter Output Voltage Input Voltage Maximum Output Current Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current Power Supply Rejection Ratio Output Voltage Temperature Coefficient Short Current Limit RMS Output Noise CE "High" Voltage CE "Low" Voltage Thermal Shutdown Thermal Shutdown Hysteresis
Symbol VOUT VIN IOUT(Max.) VRLOAD VRLINE VDROP IQ ISTD PSRR (VOUT / IOUT)/ T ISHORT VNOISE
Conditions VIN=2.8V 1mAIOUT30mA VIN*VOUT=1A, VOUT=1.76V VIN=2.8V 1mAIOUT300mA 2.8VVIN6V IOUT=30mA IOUT=10mA IOUT=100mA IOUT=300mA VIN=2.8V, IOUT=0mA VIN=2.8V, VCE in OFF mode Ripple 0.5Vp-p f=100Hz VIN=2.8V f=1KHz IOUT=30mA VOUT=0V 10Hzf100kHz CE input voltage "High" CE input voltage "Low"
Min 1.764 300
Typ 1.8 360 6 1 10 100 300 60 0.01 70 70 100 50 50
Max 1.836 6
Units V V mA mV mV
12 120 360 90 1.0
mV uA uA dB ppm/ mA uVrms V V
1.5 0.4 160 25
ACE515A-2.5 Electrical Characteristics
(VIN=3.5V, TA=25, CIN=1F, COUT=1F Bold typeface applies over -40TJ85, unless otherwise specified.)
Parameter Output Voltage Input Voltage Maximum Output Current Load Regulation Line Regulation Dropout Voltage Quiescent Current
Symbol VOUT VIN IOUT(Max.) VRLOAD VRLINE VDROP IQ
Conditions VIN=3.5V 1mAIOUT30mA VIN*VOUT=1A, VOUT=2.45V VIN=3.5V 1mAIOUT300mA 3.5VVIN6V IOUT=30mA IOUT=10mA IOUT=100mA IOUT=300mA VIN=3.5V, IOUT=0mA
Min 2.45 300
Typ 2.5 360 10 1 6.5 65 200 60
Max 2.55 6
Units V V mA mV mV
10 100 300 90
mV uA
4
VER 1.2

Technology
Standby Current Power Supply Rejection Ratio Output Voltage Temperature Coefficient Short Current Limit RMS Output Noise CE "High" Voltage CE "Low" Voltage Thermal Shutdown Thermal Shutdown Hysteresis ISTD PSRR (VOUT / IOUT)/ T ISHORT VNOISE
ACE515A
1.0 uA dB ppm/ mA uVrms V V
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
VIN=3.5V, VCE in OFF mode Ripple 0.5Vp-p f=100Hz VIN=3.5V f=1KHz IOUT=30mA VOUT=0V 10Hzf100kHz CE input voltage "High" CE input voltage "Low"
0.01 65 65 100 50 50 1.5
0.4 160 25
ACE515A-2.8 Electrical Characteristics
(VIN=3.8V, TA=25, CIN=1F, COUT=1F Bold typeface applies over -40TJ85, unless otherwise specified.)
Parameter Output Voltage Input Voltage Maximum Output Current Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current Power Supply Rejection Ratio Output Voltage Temperature Coefficient Short Current Limit RMS Output Noise CE "High" Voltage CE "Low" Voltage Thermal Shutdown Thermal Shutdown Hysteresis
Symbol VOUT VIN IOUT(Max.) VRLOAD VRLINE VDROP IQ ISTD PSRR (VOUT / IOUT)/ T ISHORT VNOISE
Conditions VIN=3.8V 1mAIOUT30mA VIN*VOUT=1A, VOUT=2.74V VIN=3.8V 1mAIOUT300mA 3.8VVIN6V IOUT=30mA IOUT=10mA IOUT=100mA IOUT=300mA VIN=3.8V, IOUT=0mA VIN=3.8V, VCE in OFF mode Ripple 0.5Vp-p f=100Hz VIN=3.8V f=1KHz IOUT=30mA VOUT=0V 10Hzf100kHz CE input voltage "High" CE input voltage "Low"
Min 2.744 300
Typ 2.8 360 11 1 6.5 65 200 60 0.01 65 65 100 50 50
Max 2.856 6
Units V V mA mV mV
10 100 300 90 1.0
mV uA uA dB ppm/ mA uVrms V V
1.5 0.4 160 25
VER 1.2
5

Technology
ACE515A-3.0 Electrical Characteristics
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
(VIN=4.0V, TA=25, CIN=1F, COUT=1F Bold typeface applies over -40TJ85, unless otherwise specified.)
Parameter Output Voltage Input Voltage Maximum Output Current Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current Power Supply Rejection Ratio Output Voltage Temperature Coefficient Short Current Limit RMS Output Noise CE "High" Voltage CE "Low" Voltage Thermal Shutdown Thermal Shutdown Hysteresis
Symbol VOUT VIN IOUT(Max.) VRLOAD VRLINE VDROP IQ ISTD PSRR (VOUT / IOUT)/ T ISHORT VNOISE
Conditions VIN=4.0V 1mAIOUT30mA VIN*VOUT=1A, VOUT=2.94V VIN=4.0V 1mAIOUT300mA 4.0VVIN6V IOUT=30mA IOUT=10mA IOUT=100mA IOUT=300mA VIN=4.0V, IOUT=0mA VIN=4.0V, VCE in OFF mode Ripple 0.5Vp-p f=100Hz VIN=4.0V f=1KHz IOUT=30mA VOUT=0V 10Hzf100kHz CE input voltage "High" CE input voltage "Low"
Min 2.94 300
Typ 3.0 360 12 1 6.5 65 200 60 0.01 65 65 100 50 50
Max 3.06 6
Units V V mA mV mV
10 100 300 90 1.0
mV uA uA dB ppm/ mA uVrms V V
1.5 0.4 160 25
ACE515A-3.3 Electrical Characteristics
(VIN=4.3V, TA=25, CIN=1F, COUT=1F Bold typeface applies over -40TJ85, unless otherwise specified.)
Parameter Output Voltage Input Voltage Maximum Output Current Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current
Symbol VOUT VIN IOUT(Max.) VRLOAD VRLINE VDROP IQ ISTD
Conditions VIN=4.3V 1mAIOUT30mA VIN*VOUT=1A, VOUT=3.23V VIN=4.3V 1mAIOUT300mA 4.3VVIN6V IOUT=30mA IOUT=10mA IOUT=100mA IOUT=300mA VIN=4.3V, IOUT=0mA VIN=4.3V, VCE in OFF mode
Min 3.234 300
Typ 3.3 360 13 1 6.5 65 200 60 0.01
Max 3.366 6
Units V V mA mV mV
10 100 300 90 1.0
mV uA uA
6
VER 1.2

Technology
Power Supply Rejection Ratio Output Voltage Temperature Coefficient Short Current Limit RMS Output Noise CE "High" Voltage CE "Low" Voltage Thermal Shutdown Thermal Shutdown Hysteresis PSRR (VOUT / IOUT)/ T ISHORT VNOISE
ACE515A
dB ppm/ mA uVrms V V
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
Ripple 0.5Vp-p VIN=4.3V
f=100Hz f=1KHz
65 65 100 50 50 1.5 0.4 160 25
IOUT=30mA VOUT=0V 10Hzf100kHz CE input voltage "High" CE input voltage "Low"
ACE515A-4.15 Electrical Characteristics
(VIN=5.15V, TA=25, CIN=1F, COUT=1F Bold typeface applies over -40TJ85, unless otherwise specified.)
Parameter Output Voltage Input Voltage Maximum Output Current Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current Power Supply Rejection Ratio Output Voltage Temperature Coefficient Short Current Limit RMS Output Noise CE "High" Voltage CE "Low" Voltage Thermal Shutdown Thermal Shutdown Hysteresis
Symbol VOUT VIN IOUT(Max.) VRLOAD VRLINE VDROP IQ ISTD PSRR (VOUT / IOUT)/ T ISHORT VNOISE
Conditions VIN=5.15V 1mAIOUT30mA VIN*VOUT=1A, VOUT=4.06V VIN=5.15V 1mAIOUT300mA 5.15VVIN6V IOUT=30mA IOUT=10mA IOUT=100mA IOUT=300mA VIN=5.15V, IOUT=0mA VIN=5.15V, VCE in OFF mode Ripple 0.5Vp-p f=100Hz VIN=5.15V f=1KHz IOUT=30mA VOUT=0V 10Hzf100kHz CE input voltage "High" CE input voltage "Low"
Min 4.067
Typ 4.15
Max 4.233 6
Units V V mA mV mV
300
360 13 1 6.5 65 200 60 0.01 65 65 100 50 50 10 100 300 90 1.0
mV uA uA dB ppm/ mA uVrms V V
1.5 0.4 160 25
VER 1.2
7

Technology
ACE515A-4.2 Electrical Characteristics
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
(VIN=5.2V, TA=25, CIN=1F, COUT=1F Bold typeface applies over -40TJ85, unless otherwise specified.)
Parameter Output Voltage Input Voltage Maximum Output Current Load Regulation Line Regulation Dropout Voltage Quiescent Current Standby Current Power Supply Rejection Ratio Output Voltage Temperature Coefficient Short Current Limit RMS Output Noise CE "High" Voltage CE "Low" Voltage Thermal Shutdown Thermal Shutdown Hysteresis
Symbol VOUT VIN IOUT(Max.) VRLOAD VRLINE VDROP IQ ISTD PSRR (VOUT / IOUT)/ T ISHORT VNOISE
Conditions VIN=5.2V 1mAIOUT30mA VIN*VOUT=1A, VOUT=4.12V VIN=5.2V 1mAIOUT300mA 5.2VVIN6V IOUT=30mA IOUT=10mA IOUT=100mA IOUT=300mA VIN=5.2V, IOUT=0mA VIN=5.2V, VCE in OFF mode Ripple 0.5Vp-p f=100Hz VIN=5.2V f=1KHz IOUT=30mA VOUT=0V 10Hzf100kHz CE input voltage "High" CE input voltage "Low"
Min 4.116 300
Typ 4.2 360 13 1 6.5 65 200 60 0.01 65 65 100 50 50
Max 4.284 6
Units V V mA mV mV
10 100 300 90 1.0
mV uA uA dB ppm/ mA uVrms V V
1.5 0.4 160 25
VER 1.2
8

Technology Typical Performance Characteristics
ACE515A-1.8 VIN=2.8V TC=25
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
ACE515A-3.3 VIN=4.3V TC=25
Output Voltage vs. Output Current
Output Voltage vs. Output Current
ACE515A-1.8 VIN=2.8V
ACE515A-3.3 VIN=4.3V
Dropout Voltage vs. Output Current
Dropout Voltage vs. Output Current
VER 1.2
9

Technology
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
ACE515A-1.8 VIN=2.8V
ACE515A-3.3 VIN=4.3V
Dropout Voltage vs. Case Temperature
Dropout Voltage vs. Case Temperature
ACE515A-1.8 TC=25
ACE515A-3.3 TC=25
Current Limit
Current Limit
VER 1.2
10

Technology
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
ACE515A-1.8 VIN=2.8V
ACE515A-3.3 VIN=4.3V
Current Limit
Current Limit
ACE515A-1.8 TC=25
ACE515A-3.3 TC=25
Output Voltage vs. Input Voltage
Output Voltage vs. Input Voltage
VER 1.2
11

Technology
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
ACE515A-1.8 TC=25 No Load
ACE515A-3.3 TC=25 No Load
Output Voltage vs. Input Voltage
Output Voltage vs. Input Voltage
ACE515A-1.8 VIN=2.8V
ACE515A-3.3 VIN=4.3V
Output Voltage vs. Case Temperature
Output Voltage vs. Case Temperature
VER 1.2
12

Technology
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
ACE515A-1.8 No Load
ACE515A-3.3 No Load
Supply Current vs. Input Voltage
Supply Current vs. Input Voltage
ACE515A-1.8 VIN=2.8V No Load
ACE515A-1.8 VIN=4.3V No Load
Supply Current vs. Case Temperature
Supply Current vs. Case Temperature
VER 1.2
13

Technology
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
ACE515A-1.8 VIN=2.8V
ACE515A-3.3 VIN=4.3V
Supply Current vs. Output Current
Supply Current vs. Output Current
ACE515A-1.8 TC=25
ACE515A-3.3 TC=25
Supply Current vs. Output Current
Supply Current vs. Output Current
VER 1.2
14

Technology
ACE515A-1.8
ACE515A
ACE515A-3.3
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
Line Transient
Conditions: IOUT=30mA, COUT=1F, VIN=2.8 to 3.8V
Line Transient
Conditions: IOUT=30mA, COUT=1F, VIN=4 to 5V
ACE515A-1.8
ACE515A-3.3
Load Transient
Conditions: IOUT=10mA to 100mA, CIN=1F, COUT=1F, VIN=2.8V
Line Transient
Conditions: IOUT=10mA to 100mA, CIN=1F, COUT=1F, VIN=4.3V
VER 1.2
15

Technology
ACE515A-2.8
ACE515A
ACE515A-1.8 CIN=1F COUT=1F
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
Enable Input Response and Auto-discharge
Conditions: VCE=0 to 3V, CIN=1F, COUT=1F, VIN=3V, no load
ESR vs. Output Current
ACE515A-1.8 VIN=2.8V IOUT=30mA
ACE515A-3.3 VIN=4.3V IOUT=30mA
PSRR
PSRR
VER 1.2
16

Technology
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
ACE515A-1.8 Package: SC-70-5 No Heatsink
ACE515A-3.3 Package: SC-70-5 No Heatsink
Power Dissipation vs. Ambient Temperature
Power Dissipation vs. Ambient Temperature
Typical Application
ACE515A-1.8
ACE515A-3.0
VER 1.2
17

Technology Packing Information
SC-70-5
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
VER 1.2
18

Technology Packing Information
SOT-23-5
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
VER 1.2
19

Technology Packing Information
SOT-23-3
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
VER 1.2
20

Technology Packing Information
SC-82
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO Regulator
VER 1.2
21

Technology
ACE515A
300mA High Speed, Extremely Low Noise CMOS LDO 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
22

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