APE8970AG-50 [A-POWER]
IC VREG 5 V FIXED POSITIVE LDO REGULATOR, PSSO3, LEAD FREE, SOT-89, 3 PIN, Fixed Positive Single Output LDO Regulator;
| 型号： | APE8970AG-50 |
| 厂家： | 
ADVANCED POWER ELECTRONICS CORP. |
| 描述： | IC VREG 5 V FIXED POSITIVE LDO REGULATOR, PSSO3, LEAD FREE, SOT-89, 3 PIN, Fixed Positive Single Output LDO Regulator |
| 文件： | 总9页 (文件大小：830K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Advanced Power
Electronics Corp.
APE8970/A
1.5A HIGH OUTPUT CURRENT LDO REGULATOR
FEATURES
DESCRIPTIOON
The APE8970/A is a low noise, high output
Input Voltage：2.6V to 5.5V
current, low quiescent current and low dropout linear
Dropout Voltage is 450mV at 1.5A Output
Current @ VOUT = 3.30V
regulator. The Device includes pass element, error
amplifier, band-gap, current-limit and thermal shutdown
circuitry. The output current is up to 1.5A. The
characteristics of low dropout voltage and less
quiescent current make it good for some critical current
application, for example, some battery powered
devices. The typical quiescent current is approximately
50 µ A. Due to internal flexible design; result in
extensively fixed output voltage versions form 1.2V to
5V per 0.1V steps. Built-in current-limit, Short current
protection and thermal-shutdown functions prevent any
fault condition from IC damage.
Guaranteed 1.5A Output Current
Low Quiescent Current is 50µA (Typ.)
Fixed Output Voltage is form 1.2 V to 5V by 0.1V Steps.
Fast Transient Response
Current Limit and Thermal Shutdown Protection
Short Circuit Current Fold-back
Available in the 3-Pin Pb-Free SOT-223, TO-263,
TO-252, SOT-89 and SO-8 Packages
TYPICAL APPLICATION
1. For SOT-223/TO-252/TO-263/SOT-89 packages
APE8970/A
VOUT
VIN
VIN
VOUT
GND
COUT
CIN
2.2uF
2.2uF
2. For SO-8 package
APE8970
VIN
VIN
VOUT
VOUT
BP
EN
CIN
GND
COUT
2.2uF
2.2uF
10nF
ORDERING INFORMATION
APE8970X X-XX
Package
Output voltage
Pin Define
S : TO-263
H : TO-252
K : SOT-223
M : SO-8
12 : 1.2V
13 : 1.3V
Refer
Pin Assignment
50 : 5.0V
G : SOT-89
Data and specifications subject to change without notice
1
201201174
Advanced Power
Electronics Corp.
APE8970/A
PACKAGE INFORMATION
( Top View )
APE8970
Tab is GND
( Top View )
APE8970A
Tab is VOUT
APE8970A
Tab is VOUT
APE8970
Tab is GND
(
)
Top View
GND
GND
GND
GND
1
2
3
4
EN
8
7
6
5
SOT-223
SOT-89
SOT-223
SOT-89
( Top View )
( Top View )
VIN
TO-252
APE8970
TO-252
2
3
2
3
1
1
1
2
3
1
2
3
VOUT
BP
VIN GND VOUT GND VOUT VIN
GND
VOUT
SO-8
VOUT
VIN
VIN
GND
APE8970
APE8970A
Tab is GND
Tab is VOUT
TOP VIEW
TOP VIEW
TO-263
TO-263
1
2
3
1
2
3
VOUT
GND
VIN
VOUT
GND
VIN
ABSOLUTE MAXIMUM RATINGS(at TA=25oC)
VIN Pin Voltage (VIN) -------------------------------------- GND - 0.3V to GND + 6.5V
OUTPUT Pin Voltage (VOUT) ----------------------------- GND - 0.3V to VIN + 0.3V
EN and BP Pin Voltage (VEN/VBP) ---------------------- GND - 0.3V to VIN + 0.3V
Power Dissipation (PD)
SOT-223------- 1.3W
TO-252--------- 2.2W
TO-263--------- 4W
SO-8------------ 1.4W
SOT-89-------- 0.6W
Storage Temperature Range (TST) --------------------- -40 to +150°C
Operating Temperature Range (TOP) ------------------ -40 to +85°C
Junction Temperature Range (TJ) --------------------- -40 to +125°C
Thermal Resistance from Junction to Ambient (Rthja
)
SOT-223------- 75°C/W
TO-252--------- 45°C/W
TO-263--------- 25°C/W
SO-8------------ 70°C/W
SOT-89-------- 160°C/W
Thermal Resistance from Junction to Case (Rthjc
)
SOT-223------- 15oC/W
TO-252--------- 10oC/W
TO-263--------- 3.5oC/W
SO-8------------ 25oC/W
SOT-89-------- 100°C/W
Note1 : RthJA is measured with the PCB copper area of approximately 1 in2(Multi-layer). That need connect to tap pin.
2
Advanced Power
Electronics Corp.
ELECTRICAL SPECIFICATIONS(TA=25oC, unless otherwise specified)
APE8970/A
Parameter
SYM
TEST CONDITION
IOUT=30mA
VIN=VOUT+0.1V to 5.5V
OUT≧2.5V, IOUT=1mA
MIN
TYP MAX UNITS
VIN
Input Voltage
2.6
-
5.5
V
-2
-
2
V
ΔVOUT
Output Voltage Accuracy (Note1)
%
VIN=2.6V to 5.5V
-3
-
-
3
2.5V＞VOUT≧1.20V, IOUT=1mA
IOUT =0mA, VIN=5V
IQ
Quiescent Current
Shutdown Current
50
80
μA
μA
ISD
IOUT =0mA, VEN=0V
-
-
-
2
V
V
V
OUT=1.20V
1.3
1
1.7
1.4
1.1
OUT=1.50V
OUT=1.80V
-
IOUT=1.5A
-
0.7
VDROP
Dropout Voltage
V
VOUT=2.50V
OUT=3.30V
-
0.55 0.75
0.45 0.65
V
-
ILIMIT
Current Limit (Note 2)
1.6
-
2
600
10
0.5
65
60
-
-
-
A
ISHORT
Output Voltage < 0.25*VOUT
Short Circuit Current
mA
mV
%
2.0V＞VOUT
-
20
1
IOUT =10m~1.5A
Load Regulation (Note 3)
ΔVLOAD
2.0V≦VOUT
F=120Hz
F=1KHz
-
CIN=2.2uF, CO=2.2uF,
-
-
Ripple Rejection
PSRR
dB
V
IOUT =10mA
-
-
VENH
VENL
IENH
IENL
TS
Regulator Enable
Regulator Shutdown
VEN=VIN
2
-
-
Enable Input Threshold (SO-8
only)
-
0.6
-
0.003 0.1
Enable Pin Current (SO-8 only)
μA
VEN=0V
-
1
1.5
Temperature Shutdown
-
150
30
-
-
ºC
ºC
TSH
Temperature Shutdown Hysterisis
-
Note1: Minimum VIN voltage is defined by output adds a dropout voltage.
Note2: Current limit is measured at constant junction temperature by using pulsed testing with a low ON time.
Note3: Regulation is measured at constant junction temperature by using pulsed testing with a low ON time.
PIN DESCRIPTIONS
PIN SYMBOL
EN
PIN DESCRIPTION
Active-Low Shutdown Input. A logic low reduces the supply current to less than
2µA. Connect to VIN or Floating for normal operation. (SO-8 only)
VOUT
VIN
Output Voltage
Input Voltage
Band-gap (SO-8 only)
Ground
BP
GND
3
Advanced Power
Electronics Corp.
APE8970/A
BLOCK DIAGRAM
VIN
VOUT
Error
Amp
Current
Limit
-
+
EN
Enable
Bandgap
Thermal
Shutdown
GND
BP
FUNCTION DESCRIPTIONS
A minimum of 2.2µF capacitor must be connected from VOUT to ground to insure stability.
Typically a large storage capacitor is connected from VIN to ground to ensure that the input
voltage does not sag below the minimum dropout voltage during the load transient response. This
pin must always be dropout voltage higher than VOUT in order for the device to regulate properly.
APPLICATION INFORMATION
Like any low-dropout regulator, the APE8970/A requires input and output decoupling
capacitors. The device is specifically designed for portable applications requiring minimum board
space and smallest components. These capacitors must be correctly selected for good
performance. Please note that linear regulators with a low dropout voltage have high internal loop
gains which require care in guarding against oscillation caused by insufficient decoupling
capacitance.
Capacitor Selection
Normally, use a 2.2µF capacitor on the input and a 2.2µF capacitor on the output of the
APE8970/A. Larger input capacitor values and lower ESR (X5R, X7R) provide better supply-noise
rejection and transient response. A higher- value output capacitor (4.7µF) may be necessary if
large, fast transients are anticipated and the device is located several inches from the power
source.
Input-Output (Dropout) Voltage
A regulator's minimum input-to-output voltage differential (dropout voltage) determines the
lowest usable supply voltage. In battery-powered systems, this determines the useful end-of-life
battery voltage. Because the device uses a PMOS, its dropout voltage is a function of drain-to
source on-resistance, RDS(ON), multiplied by the load current:
VDROPOUT = VIN -VOUT = RDS(ON) x IOUT
4
Advanced Power
Electronics Corp.
Current Limit and Short-Circuit Protection
APE8970/A
The APE8970/A used a current sense-resistor to monitor the output current. A portion of the
PMOS output transistor’s current is mirrored to a resistor such that the voltage across this resistor
is proportional to the output current. Once the output current exceeds limit threshold, APE8970/A
would be protected with a limited output current. Further more, when the output is short to ground,
the output current would be folded-back to a less limit.
Thermal Considerations
The APE8970/A series can deliver a current of up to 1.5A over the full operating junction
temperature range. However, the maximum output current must be dated at higher ambient
temperature to ensure the junction temperature does not exceed 125 ° C. With all possible
conditions, the junction temperature must be within the range specified under operating
conditions. Power dissipation can be calculated based on the output current and the voltage drop
across regulator.
PD = (VIN - VOUT) IOUT
The final operating junction temperature for any set of conditions can be estimated by the
following thermal equation:
PD(MAX) = (TJ(MAX) - TA) / RthJA
Where TJ(MAX) is the maximum junction temperature of the die (125 ° C) and TA is the
maximum ambient temperature. The junction to ambient thermal resistance (RthJA) for SOT-223
package at recommended minimum footprint is 75°C/W (please refer Maximum rating table) that
is connected 1 in2 PCB copper area to tap pin.
PCB Layout
An input capacitance of ~ 2.2µF is required between the APE8970/A input pin and ground
(the amount of the capacitance may be increased without limit), this capacitor must be located a
distance of not more than 1cm from the input and return to a clean analog ground. Input capacitor
can filter out the input voltage spike caused by the surge current due to the inductive effect of the
package pin and the printed circuit board’s routing wire. Otherwise, the actual voltage at the VIN
pin may exceed the absolute maximum rating. The output capacitor also must be located a
distance of not more than 1cm from output to a clean analog ground. Because it can filter out the
output spike caused by the surge current due to the inductive effect of the package pin and the
printed circuit board’s routing wire.
5
Advanced Power
Electronics Corp.
APE8970/A
TYPICAL PERFORMANCE CHARACTERISTICS
VIN VS.ICCQ
VIN VS. ISD
80
70
60
50
40
30
20
1.4
1.2
1
0.8
0.6
0.4
0.2
0
IOUT=0mA
5
VEN=0V
2.6
3
3.5
4
4.5
5.5
2.6
3
3.5
4
4.5
5
5.5
V
IN (V)
VIN (V)
VIN VS. ICL
VIN VS. Threshold Voltage
2
1.8
1.6
1.4
1.2
1
5
4
3
2
1
0
VENH
VENL
0.8
0.6
0.4
0.2
0
VOUT=1.2V
5
2.6
3
3.5
4
IN (V)
4.5
5.5
2.6
3
3.5
4
4.5
5
5.5
V
V
IN (V)
Load Regulation
Temperature VS. ICCQ
100
90
80
70
60
50
40
30
20
10
0
1.26
1.24
1.22
1.2
1.18
1.16
1.14
VIN=5V
VIN=3.3V
1.2
-40
-20
℃
0
25
50
85
105 125
℃ ℃
℃
℃
℃
℃
℃
0
0.01 0.1
0.3
0.5
0.8
1
1.5
IOUT (A)
Temperature
6
Advanced Power
Electronics Corp.
APE8970/A
TYPICAL PERFORMANCE CHARACTERISTICS
Power-ON
IOUT VS. Dropout Voltage
VOUT=1.2
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
VOUT=1.5
VOUT=2.5
VOUT=1.8
VOUT=3.3
VOUT=5.0
0.1
0.3
0.5
0.8
IOUT (A)
1
1.2
1.5
EN-ON (SO-8 Only)
Load Transient
Thermal Shutdown Release
7
Advanced Power
Electronics Corp.
APE8970/A
MARKING INFORMATION
SO-8
Part Number
Pin assignment
Package Code
Output Voltage
8970XM-&&
YWWSSS
Date Code (YWWSSS)
Y:Year
WW：Week
SSS：Sequence
TO-263
Part Number
Pin assignment
Package Code
8970XS-&&
Output Voltage
YWWSSS
Date Code (YWWSSS)
Y:Year
WW：Week
SSS：Sequence
Part Number
TO-252
Pin assignment
Package Code
8970XH-&&
YWWSSS
Output Voltage
Date Code (YWWSSS)
Y:Year
WW：Week
SSS：Sequence
SOT-223
Part Number
Pin assignment
Package Code
8970XK-&&
YWWSSS
Output Voltage
Date Code (YWWSSS)
Y:Year
WW：Week
SSS：Sequence
8
Advanced Power
Electronics Corp.
APE8970/A
MARKING INFORMATION
SOT-89
Part Number
Pin assignment
Output Voltage
Identification
Code
Identification
Code
Identification
Code
VOUT
VOUT
VOUT
F
l
e
1.2V
1.3V
1.4V
1.5V
1.6V
1.7V
1.8V
1.9V
2.0V
2.1V
2.2V
2.3V
2.4V
B
n
2.5V
2.6V
2.7V
2.8V
2.9V
3.0V
3.1V
3.2V
3.3V
3.4V
3.5V
3.6V
3.7V
3.8V
3.9V
4.0V
4.1V
4.2V
4.3V
4.4V
4.5V
4.6V
4.7V
4.8V
4.9V
5.0V
f
8970 X X
w
G
h
L
V
r
t
Date Code (YWWS)
C
S
X
D
YWWS
Y:Year
WW：Week
S：Sequence
H
x
R
W
M
u
U
I
a
E
b
O
v
j
y
N
K
Y
Z
z
T
J
9
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