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PDF ACE515A Data sheet ( Hoja de datos )
| Número de pieza | ACE515A | |
| Descripción | Extremely Low Noise CMOS LDO Regulator | |
| Fabricantes | ACE Technology | |
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ACE515A
Technology 300mA High Speed, Extremely Low Noise CMOS LDO Regulator
Description
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: 0.01μA Typical
• Low Quiescent Current: 60μA Typical
• Extremely Low Noise: 50μVrms 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
1 page  
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ACE515A
Technology 300mA High Speed, Extremely Low Noise CMOS LDO Regulator
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
(ΔVOUT /
ΔIOUT)/ ΔT
ISHORT
VNOISE
VIN=3.5V, VCE in OFF mode
Ripple 0.5Vp-p f=100Hz
VIN=3.5V
f=1KHz
0.01 1.0
65
65
uA
dB
IOUT=30mA
±100
ppm/℃
VOUT=0V
10Hz≦f≦100kHz
CE input voltage “High”
CE input voltage “Low”
50 mA
50 uVrms
1.5 V
0.4 V
160 ℃
25 ℃
ACE515A-2.8 Electrical Characteristics
(VIN=3.8V, TA=25℃, CIN=1μF, COUT=1μF Bold typeface applies over -40℃≦TJ≦85℃, 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
Symbol
VOUT
VIN
IOUT(Max.)
VRLOAD
VRLINE
VDROP
IQ
ISTD
PSRR
(ΔVOUT /
ΔIOUT)/ ΔT
ISHORT
VNOISE
Conditions
VIN=3.8V
1mA≦IOUT≦30mA
VIN*VOUT=1A, VOUT=2.74V
VIN=3.8V
1mA≦IOUT≦300mA
3.8V≦VIN≦6V 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
Min
2.744
300
Typ
2.8
360
11
1
6.5
65
200
60
0.01
65
65
Max
2.856
6
10
100
300
90
1.0
IOUT=30mA
±100
VOUT=0V
10Hz≦f≦100kHz
CE input voltage “High”
50
50
1.5
CE “Low” Voltage
CE input voltage “Low”
0.4
Thermal Shutdown
160
Thermal Shutdown
Hysteresis
25
Units
V
V
mA
mV
mV
mV
uA
uA
dB
ppm/℃
mA
uVrms
V
V
℃
℃
VER 1.2 5
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ACE515A
Technology 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℃
Output Voltage vs. Input Voltage
ACE515A-3.3
TC=25℃
Output Voltage vs. Input Voltage
VER 1.2 11
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| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet ACE515A.PDF ] | |
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