BCD AS7805AT-E1 1a 3-terminal positive voltage regulator Datasheet

Preliminary Datasheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
General Description
Features
The AS7805A is a three terminal positive regulator
designed for a wide variety of applications including
local, on-card regulation.
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The AS7805A is complete with internal current limiting, thermal shutdown protection, and safe-area compensation which make it virtually immune from output
overload. If adequate heat sinking is provided, this IC
can deliver output current up to 1A.
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The AS7805A is available in TO-220-3 and TO-252-2
(1) packages.
Applications
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AS7805A
Output Current up to 1A
Fixed Output Voltage of 5V
Output Voltage Accuracy of ±4% over the Full
Temperature Range
Internal Short Circuit Current Limiting
Internal Thermal Overload Protection
Output Transistor Safe-area Protection
Low Load Regulation
Stable Performance in High Temperature
High Efficiency Linear Regulator
Post Regulation for Switching Supply
Microprocessor Power Supply
Mother Board
TO-252-2 (1)
TO-220-3
Figure 1. Package Types of AS7805A
Mar. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS7805A
Pin Configuration
T Package
(TO-220-3)
D Package
(TO-252-2 (1) )
3
OUTPUT
GND
2
GND
INPUT
1
INPUT
3
OUTPUT
2
1
Figure 2. Pin Configuration of AS7805A (Top View)
Pin Description
Pin Number
Pin Name
Function
1
INPUT
Voltage Input
2
GND
Ground
3
OUTPUT
Voltage Output
Mar. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS7805A
Functional Block Diagram
1
R9
Q9
INPUT
D1
Zener
Q14
R16
Q21
Q24
R20
C1
R1
R21
Q18
R17
R12
3
Q6
Q3
Q22
R3
Q11
OUTPUT
R2
2
Q10
R18
R7
Q7
Q1
R23
Q4
Q16
R4
R14
Q8
R11
R5
R15
R6
Q23
Q13
Q5
Q2
Q15
R19
C2
Q19
Q17
Q12
R2
R8
Q20
R13
R10
2
GND
Figure 3. Functional Block Diagram of AS7805A
Mar. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS7805A
Ordering Information
-
AS7805A
E1: Lead Free
Circuit Type
TR: Tape and Reel
Blank: Tube
Package
T: TO-220-3
D: TO-252-2 (1)
Package
Temperature Range
TO-220-3
-40 to 125oC
TO-252-2 (1)
-40 to 125oC
Part Number
Marking ID
Packing Type
AS7805AT-E1
AS7805AT-E1
Tube
AS7805AD-E1
AS7805AD-E1
Tube
AS7805ADTR-E1
AS7805AD-E1
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Mar. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS7805A
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Value
Unit
VIN
36
V
TLEAD
260
Power Dissipation
PD
Internally Limited
Operating Junction Temperature
TJ
150
TSTG
-65 to 150
Input Voltage
Lead Temperature (Soldering, 10sec)
Storage Temperature Range
Thermal Resistance
θJA
o
C
W
o
C
oC
TO-220-3
60
TO-252-2 (1)
100
oC/W
ESD (Human Body Model)
ESD
6000
V
ESD (Machine Model)
ESD
500
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.
Recommended Operating Conditions
Parameter
Input Voltage
Operating Junction Temperature Range
Symbol
Min
VIN
TJ
-40
Mar. 2007 Rev. 1. 1
Max
Unit
25
V
125
oC
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS7805A
Electrical Characteristics
VIN=10V, IOUT=1A, TJ=-40 to 125oC, unless otherwise specified.
Parameter
Symbol
Conditions
TJ=25oC
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
VOUT
VRLINE
VRLOAD
IQ
∆IQ
IOUT=5mA to 1A, VIN=7.5V to 20V,
PD≤15W
VIN=7.5V to 20V,
IOUT=500mA, TJ=25oC
VIN=7.5V to 20V,
IOUT=500mA, TJ=75oC
Min
Typ
Max
4.9
5
5.1
Unit
V
4.8
5.2
25
50
mV
15
40
mV
VIN=10V, IOUT=5mA to 1A, TJ=25oC
20
50
mV
VIN=10V, IOUT=0
3.2
6
mA
VIN=8V to 25V, IOUT=500mA, TJ=25oC
0.3
0.8
IOUT=5mA to 1A, TJ=25oC
0.08
0.5
mA
Ripple Rejection
PSRR
VIN=8V to 18V, f=120Hz, IOUT=500mA
70
dB
Dropout Voltage
VDROP
∆VOUT=1%, IOUT=1A, TJ=25oC
2
V
Output Noise Voltage
NO
f=10Hz to 100kHz, TA=25oC
10
µV/VO
Output Resistance
RO
f=1kHz
10
mΩ
Short Circuit Current
ISC
VIN=35V, TA=25oC
0.05
A
Peak Output Current
IPK
VIN=10V, TJ=25oC
2.2
A
∆VOUT/∆T
0.4
mV/oC
(∆VOUT/VOUT)/∆T
80
ppm/oC
Output Voltage
Temperature Coefficient
Mar. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS7805A
Typical Performance Characteristics
5.050
2.5
O
TJ=-40 C
VIN=10V
5.025
IOUT=10mA
O
TJ=25 C
IOUT=1A
5.000
O
TJ=125 C
Output Voltage (V)
Peak Output Current (A)
2.0
1.5
1.0
4.975
4.950
4.925
4.900
0.5
4.875
4.850
-40
0.0
3
6
9
12
15
18
21
24
-20
0
40
60
80
100
120
O
Junction Temperature ( C)
VIN-VOUT (V)
Figure 5. Output Voltage vs. Junction Temperature
Figure 4. Peak Output Current vs. Input/Output
Differential Voltage
5.050
5.050
5.025
5.025
O
VIN=10V, TJ=25 C
5.000
Output Voltage (V)
5.000
Output Voltage (V)
20
4.975
4.950
4.925
4.975
4.950
4.925
O
IOUT=500mA, TJ=25 C
4.900
4.900
O
IOUT=500mA, TJ=75 C
O
IOUT=1A, TJ=25 C
4.875
4.875
4.850
4.850
0
200
400
600
800
1000
1200
8
1400
10
12
14
16
18
20
22
24
Input Voltage (V)
Output Current (mA)
Figure 6. Output Voltage vs. Output Current
Figure 7. Output Voltage vs. Input Voltage
Mar. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS7805A
Typical Performance Characteristics (Continued)
100
6
VIN=10V
5
80
Ripple Rejection (dB)
Quiescent Current (mA)
IOUT=0
4
3
2
60
40
20
1
0
-40
-20
0
20
40
60
80
100
0
10
120
100
1k
10k
Junction Temperature ( C)
1M
Figure 9. Ripple Rejection vs. Frequency
Figure 8. Quiescent Current vs. Junction Temperature
30
2.5
Package: TO-220-3
2
Heatsink: 60*43mm
25
Power Dissipation (W)
2.0
Dropout Voltage (V)
100k
Frequency (Hz)
O
1.5
1.0
IOUT=100mA
IOUT=500mA
0.5
20
15
10
5
IOUT=1A
0.0
-40
-20
0
20
40
60
80
100
0
-40
120
-20
0
20
40
60
80
100
120
O
Junction Temperature ( C)
O
Junction Temperature ( C)
Figure 11. Power Dissipation vs. Junction Temperature
Figure 10. Dropout Voltage vs. Junction Temperature
Mar. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS7805A
Typical Performance Characteristics (Continued)
2
IOUT (1A/Div)
AS7805A
20
15
10
∆VOUT (100mV/Div)
∆VOUT (50mV/Div)
VIN (5V/Div)
25
0
-50
-100
AS7805A
1
0
0.005A
-1
100
0
-100
-200
-150
Time (100µs/Div)
Time (40µs/Div)
Figure 12. Line Transient
(Conditions: IOUT=500mA, COUT=0.1µF)
Figure 13. Load Transient
(Conditions: VIN=10V, CIN=0.33µF, COUT=0.1µF)
Mar. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS7805A
Typical Application
AS7805A
VIN
INPUT
VOUT
OUTPUT
GND
0.33µF
0.1µF
Figure 14. Typical Application of AS7805A
Mar. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS7805A
Mechanical Dimensions
TO-220-3
2.580(0.102)
3.380(0.133)
0.550(0.022)
1.350(0.053)
1.160(0.046)
1.760(0.069)
14.230(0.560)
16.510(0.650)
φ1.500(0.059)
27.880(1.098)
30.280(1.192)
8.520(0.335)
9.520(0.375)
1.850(0.073)
9.660(0.380)
10.660(0.420)
φ3.560(0.140)
4.060(0.160)
Unit: mm(inch)
3°
0.200(0.008)
7°
3.560(0.140)
4.820(0.190)
2.080(0.082)
2.880(0.113)
7°
0.381(0.015)
60°
0.813(0.032)
8.763(0.345)
60°
0.381(0.015)
2.540(0.100)
2.540(0.100)
Mar. 2007 Rev. 1. 1
0.356(0.014)
0.406(0.016)
BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
AS7805A
Mechanical Dimensions (Continued)
1.350(0.053)
1.650(0.065)
TO-252-2(1)
6.350(0.250)
6.650(0.262)
5.200(0.205)
5.400(0.213)
Unit: mm(inch)
2.200(0.087)
2.400(0.094)
0.430(0.017)
0.580(0.023)
4.300(0.169)
5.400(0.212)
5°
0.700(0.028)
0.900(0.035)
0.500(0.020)
0.700(0.028)
2.300TYP
4.500(0.177)
4.700(0.165)
1.400(0.055)
1.780(0.070)
5°
3°
4°
0.430(0.017)
0.580(0.023)
Mar. 2007 Rev. 1. 1
4.800(0.189)
6.500(0.256)
3.800REF(0.150REF)
5.400(0.213)
5.700(0.224)
0.000(0.000)
0.127(0.005)
2.550(0.100)
2.900(0.114)
0.600(0.024)
0.900(0.035)
9.500(0.374)
9.900(0.390)
8°
BCD Semiconductor Manufacturing Limited
12
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