BCD AP2318AMP-ADJE1 1a uldo regulator with enable Datasheet

Data Sheet
AP1117M
AP2318A
600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
General Description
Features
The AP2318A is a series of ultra low dropout
regulators optimized for low voltage applications
where transient response and minimum input voltage
are critical.
·
·
·
·
Wide Operating Voltage Range: 2.5V to 12V
Output Voltage Accuracy: ±1%
On-chip Thermal Shutdown
ESD Rating: 3000V (Human Body Model)
600V (Machine Model)
·
Operation Junction Temperature: -40oC to 125oC
The AP2318A provides current limit and thermal
shutdown function. Its circuit includes a trimmed
bandgap reference to assure output voltage accuracy to
be within ±1%. On-chip thermal shutdown provides
protection against any combination of overload and
ambient temperatures that would cause excessive
junction temperatures.
Applications
·
·
·
·
·
The AP2318A has adjustable version, which can set
the output voltage through two external resistors.
Notebook
USB Device
Add-on Card
DVD Player
PC Motherboard
The AP2318A is available in the standard DFN-3x3-8
and PSOP-8 packages.
DFN-3x3-8
PSOP-8
Figure 1. Package Type of AP2318A
Aug. 2010 Rev 1. 3
BCD Semiconductor Manufacturing Limited
1
Data Sheet
AP1117M
AP2318A
600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
Pin Configuration
DN Package
MP Package
(DFN-3x3-8)
(PSOP-8)
NC
1
8
GND
NC
EN
2
7
ADJ
6
GND
VIN
3
6
VOUT
5
ADJ
VIN
4
5
NC
VIN
1
8
EN
VIN
2
7
VOUT
3
VOUT
4
Figure 2. Pin Configuration of AP2318A (Top View)
Pin Description
Pin Number
Pin Name
Function
DFN-3x3-8
PSOP-8
1, 2
3, 4
VIN
3, 4
6
VOUT
5
7
ADJ
Adjustable voltage
6
8
GND
Ground
7
1, 5
NC
No connection
8
2
EN
On/Off control
Input voltage
Aug. 2010 Rev 1. 3
Output voltage
BCD Semiconductor Manufacturing Limited
2
Data Sheet
AP1117M
AP2318A
600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
Functional Block Diagram
VIN
EN
1, 2 (3, 4)
3, 4 (6)
VOUT
8 (2)
Enable
Bandgap
Reference
RC
Compensation
OVP
5 (7)
ADJ
Error
VFB Amplifier
Thermal
Shutdown
Current
Limit
6 (8)
GND
A (B)
A: DFN-3x3-8
B: PSOP-8
Figure 3. Functional Block Diagram of AP2318A
Aug. 2010 Rev 1. 3
BCD Semiconductor Manufacturing Limited
3
Data Sheet
AP1117M
AP2318A
600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
Ordering Information
AP2318A
-
Circuit Type
E1: Lead Free
Package
TR: Tape and Reel
G1: Green
Blank: Tube
DN: DFN-3x3-8
MP: PSOP-8
Package
Temperature
Range
DFN-3x3-8
-40 to 125oC
PSOP-8
-40 to 125oC
ADJ: Adjustable Output
Part Number
Marking ID
Lead Free
Green
Lead Free
AP2318ADN-ADJTRG1
Green
Packing Type
B7B
Tube
AP2318AMP-ADJE1
AP2318AMP-ADJG1
2318A-ADJE1
2318A-ADJG1
Tube
AP2318AMP-ADJTRE1
AP2318AMP-ADJTRG1
2318A-ADJE1
2318A-ADJG1
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with
"G1" suffix are available in green packages.
Aug. 2010 Rev 1. 3
BCD Semiconductor Manufacturing Limited
4
Data Sheet
AP1117M
AP2318A
600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Value
Unit
Input Voltage
VIN
15
V
TJ
150
TSTG
-65 to 150
oC
TLEAD
260
oC
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10sec)
θJA
Thermal Resistance, Junction to Ambient (Note 2)
o
C
DFN-3x3-8
120
PSOP-8
108
oC/W
ESD (Human Body Model)
ESD
3000
V
ESD (Machine Model)
ESD
600
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.
Note 2: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a
function of the maximum junction temperature, TJ(Max), the junction-to-ambient thermal resistance, θJA, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated using: PD(max)=(TJ(Max) TA)/θJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will
go into thermal shutdown.
Recommended Operating Conditions
Parameter
Symbol
Min
Max
Unit
Input Voltage
VIN
2.5
12
V
Enable Voltage
VEN
12
V
Operating Junction Temperature Range
TJ
-40
Aug. 2010 Rev 1. 3
125
o
C
BCD Semiconductor Manufacturing Limited
5
Data Sheet
AP1117M
AP2318A
600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
Electrical Characteristics
Operating Conditions: 2.5V≤VIN≤12V, CIN=1µF, COUT=2.2µF, TJ=25oC, unless otherwise specified. (P≤Maximum Power Dissipation). Limits appearing in Boldface type apply over the entire junction temperature range for
operation of -40oC to 125oC.
Parameter
Reference Voltage
Maximum Output
Current
Line Regulation
Conditions
Symbol
VREF
Min
AP2318A-ADJ, IOUT=10mA, VIN-VOUT=2V,
TJ=25oC,10mA≤IOUT≤1A, VOUT+2V≤VIN ≤12V
IOUT(Max) VIN-VOUT=2V
VRLINE
VRLOAD
1.2
AP2318A-ADJ
IOUT=10mA, VOUT+2V≤VIN≤12V
AP2318A-ADJ
VIN=VOUT+2V, 10mA≤IOUT≤1A
VIN=2.5V, 10mA≤IOUT≤1A
Dropout Voltage
Adjust Pin Current
Minimum Load
Current
VDROP
∆VOUT (∆VREF)=1%, VOUT>2V, IOUT=1A
ILOAD(Min) VOUT+2V≤VIN≤12V (ADJ only)
IQ
RMS Output Noise
(% of VOUT)
VNOI
Unit
V
1.5
A
0.05
0.2
%/V
1
6
mV
0.2
0.4
%
1
15
mV
0.5
IADJ
Quiescent Current
Max
1.237 1.250 1.262
1.225 1.250 1.275
IOUT=10mA, 2.5V≤VIN ≤12V
Load Regulation
Typ
VIN=VOUT+2V, IOUT=0mA
TA=25oC, 10Hz≤f≤20kHz
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
V
0.05
1
µA
1.7
5
mA
250
µA
0.003
%
o
C
150
oC
25
Enable Input Voltage
VEN
Enable Input Current
IEN
Thermal Resistance
(Junction to Case)
θJC
Enable logic low
0.8
Enable logic high
V
2.25
VEN=2.25V
µA
5
VEN=0.8V
µA
4
DFN-3x3-8
15
PSOP-8
12
Aug. 2010 Rev 1. 3
o
C/W
BCD Semiconductor Manufacturing Limited
6
Data Sheet
AP1117M
AP2318A
600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
3.0
3.0
2.8
2.8
2.6
2.6
2.4
2.4
2.2
2.2
2.0
2.0
Output Voltage (V)
Output Voltage (V)
Typical Performance Characteristics
1.8
1.6
1.4
AP2318A-ADJ
VOUT=2.5V
1.2
1.0
o
TC=25 C
0.8
IOUT=500mA
0.2
IOUT=1000mA
1
2
3
4
5
6
7
8
9
10
VIN=3.5V
1.4
o
TC= -40 C
1.2
o
1.0
TC=25 C
0.8
TC=125 C
o
0.6
0.4
0.0
0
1.6
IOUT=10mA
0.6
AP2318A-ADJ
VOUT=2.5V
1.8
0.4
0.2
11
0.0
0
12
200
400
600
Input Voltage (V)
800
1000
1200
1400
1600
1800
2000
Output Current (mA)
Figure 5. Output Voltage vs. Output Current
Figure 4. Output Voltage vs. Input Voltage
340
400
336
350
332
Supply Current (µA)
Supply Current (µA)
300
250
200
150
AP2318A-ADJ
VOUT=1.25V
100
T C=-40 C
o
0
0
T C=25 C
o
2
3
4
5
6
7
320
316
312
AP2318A-ADJ
VIN=3.25V
VOUT=1.25V
304
T C=125 C
1
324
308
o
50
328
300
-40
8
-20
0
20
40
60
80
100
120
o
Case Temperature ( C)
Input Voltage (V)
Figure 7. Supply Current vs. Case Temperature
Figure 6. Supply Current vs. Input Voltage
Aug. 2010 Rev 1. 3
BCD Semiconductor Manufacturing Limited
7
Data Sheet
AP1117M
AP2318A
600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
20
20
18
18
16
16
Supply Current (mA)
Supply Current (mA)
Typical Performance Characteristics(Continued)
14
12
AP2318A-ADJ
VIN=3.25V
10
8
VOUT=1.25V
6
o
TC=25 C
TC=-40 C
2
TC=125 C
12
10
AP2318A-ADJ
VOUT=1.25V
8
o
TC=25 C
6
VIN=3.25V
4
o
4
14
o
VIN=2.5V
2
VIN=12V
0
0
0
150
300
450
600
750
900
1050
1200
1350
0
1500
150
300
450
Figure 8. Supply Current vs. Output Current
900
1050
1200
1350
1500
100
AP2318A-ADJ
VOUT=2.5V
0.60
0.55
90
80
o
0.50
TC=-40 C
0.45
TC= 25 C
0.40
TC=125 C
o
70
o
PSRR (dB)
Dropout Voltage (V)
750
Figure 9. Supply Current vs. Output Current
0.65
0.35
0.30
0.25
0.20
0.15
60
50
40
30
AP2318A-ADJ
VIN=3V to 4V
20
VOUT=1.25V
0.10
10
0.05
0.00
600
Output Current (mA)
Output Current (mA)
0
100
200
300
400
500
600
700
800
900
1000
0
10
CIN=1µF, COUT=2.2µF
ILOAD=10mA
100
1k
10k
100k
Frequency (Hz)
Output Current (mA)
Figure 11. PSRR vs. Frequency
Figure 10. Dropout Voltage vs. Output Current
Aug. 2010 Rev 1. 3
BCD Semiconductor Manufacturing Limited
8
Data Sheet
AP1117M
AP2318A
600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
∆VOUT 50mV/Div
∆VOUT 100mV/Div
IOUT 200mA/Div
IOUT 500mA/Div
Typical Performance Characteristics (Continued)
Figure 12. Load Transient Response
VIN=2.5V, VOUT=1.25V, IOUT=1 to 500mA,
CIN=1µF, COUT=2.2µF
Figure 13. Load Transient Response
VIN=2.5V, VOUT=1.8V, IOUT=1mA to 1A,
CIN=1µF, COUT=2.2µF
Aug. 2010 Rev 1. 3
BCD Semiconductor Manufacturing Limited
9
Data Sheet
AP1117M
AP2318A
600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
Typical Application
VOUT
VIN
VIN
VOUT
AP2318A-ADJ
EN
CIN
1µF
+
R1
ADJ
GND
+
COUT
2.2µF
R2
Figure 14. Typical Application of AP2318A ADJ Version, VOUT=1.25*(R1+R2)/R2
Aug. 2010 Rev 1. 3
BCD Semiconductor Manufacturing Limited
10
Data Sheet
AP1117M
AP2318A
600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
Mechanical Dimensions
DFN-3x3-8
Unit: mm(inch)
0.180(0.007)
0.300(0.012)
2.900(0.114)
3.100(0.122)
N5
0.650(0.026)
BSC
N8
0.375(0.015)
0.575(0.023)
2.900(0.114)
1.400(0.055)
3.100(0.122)
1.600(0.063)
2.200(0.087)
2.400(0.094)
Pin 1 Dot
by Marking
PIN #1
IDENTIFICATION
N4
N1
0.153(0.006)
0.253(0.010)
0.000(0.000)
0.700(0.028)
0.050(0.002)
0.800(0.031)
Aug. 2010 Rev 1. 3
BCD Semiconductor Manufacturing Limited
11
Data Sheet
AP1117M
AP2318A
600mA LOW DROPOUT LINEAR REGULATOR
1A ULDO REGULATOR WITH ENABLE
Mechanical Dimensions (Continued)
PSOP-8
Unit: mm(inch)
3.800(0.150)
4.000(0.157)
2.313(0.091)
3.202(0.126)
3.402(0.134)
2.513(0.099)
1.270(0.050)
TYP
4.700(0.185)
5.100(0.200)
0.330(0.013)
0.510(0.020)
5.800(0.228)
6.200(0.244)
0.050(0.002)
0.150(0.006)
φ 1.350(0.053)
1.550(0.061)
1.350(0.053)
0°
8°
1.750(0.069)
0.400(0.016)
1.270(0.050)
0.170(0.007)
0.250(0.010)
Note: Eject hole, oriented hole and mold mark is optional.
Aug. 2010 Rev 1. 3
BCD Semiconductor Manufacturing Limited
12
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