ADVANCED Power Electronics APE1117 Service Manual
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APE1117
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Features
- 1.4V maximum dropout at full load current
- Fast transient response
- Output current limiting
- Built-in thermal shutdown
- Packages: SOT223, TO252, SOT89,
- Good noise rejection
- 3-Terminal Adjustable or Fixed 1.5V, 1.8V, 1.9V,
2.5V, 3.3V, 5.0V
- RoHS Compliant
Applications
- PC peripheral
- Communication
General Description
APE1117 is a low dropout positive adjustable or
fixed-mode regulator with minimum of 1A output
current capability. The product is specifically
designed to provide well-regulated supply for low
voltage IC applications such as high-speed bus
termination and low current 3.3V logic supply.
APE1117 is also well suited for other applications
such as VGA cards. APE1117 is guaranteed to
have lower than 1.4V dropout at full load current
making it ideal to provide well-regulated outputs of
1.25 to 5.0 with 6.4V to 12V input supply.
Ordering Information
APE 1117 X XX
Pb Free Plating Product
Low Dropout Regulator
Typical Circuit
5V
Vin
Vout
GND
Tab is Vout
( 5V/3.3V fixed output )
K : SOT223-3L
H : TO252-3L
G : SOT89-3L
C1
100uF
Package Vout
Blank : ADJ
15 : 1.5V
18 : 1.8V
19: 1.9V
25 : 2.5V
33 : 3.3V
50 : 5.0V
3.3V/1A
C2
100uF
5V
Vin
Vout
Adj
Tab is Vout
C1
100uF
( 5V/2.5V ADJ output )
Note:
(1 VV +∗=
REFo
R1
121
R2
121
R
R
V
o
2.5V/1A
C2
Ω
100uF
Ω
2
)
1
This datasheet contains new product information. Advanced Power Electronics Corp. reserves the rights to modify the product specification without notice. No liability is assumed as
a result of the use of this product. No rights under any patent accompany the sale of the product.
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1A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Connection Diagram
3 PIN SOT223 3 PIN TO252
APE1117
Pb Free Plating Product
( Top View )
Tab is Vout
3 PIN SOT89
3
2
1
Tab is Vout
Block Diagram
3
2
1
Vin
Vout
Adj (GND)
Vin
Vout
Adj (GND)
( Top View )
3
2
1
Tab is Vout
Vin
Vout
Adj (GND)
Vin
Advanced Power Electronics Corp.
www.a-power.com.tw
3
Thermal
Shutdown
2 Vout
+
+
－
CURRENT
LIMIT
1.25V
+
－
2/9
+
1
GND
(FIXED)
1
Adj
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Pin Descriptions
NAME I/O PIN # FUNCTION
APE1117
Pb Free Plating Product
Adj (GND) I 1
A resistor divider from this pin to the Vout pin and ground sets the
output voltage. (Ground only for Fixed-Mode)
The output of the regulator. A minimum of 10uF capacitor (0.15Ω
Vout O 2
≤ ESR ≤ 20Ω) must be connected from this pin to ground to insure
stability.
The input pin of regulator. Typically a large storage capacitor
(0.15Ω ≤ ESR ≤ 20Ω) is connected from this pin to ground to
Vin I 3
insure that the input voltage does not sag below the minimum
dropout voltage during the load transient response. This pin must
always be 1.3V higher than Vout in order for the device to
regulate properly.
Absolute Maximum Ratings
Symbol Parameter Rating Unit
Vin DC Supply Voltage -0.3 to 12 V
Power Dissipation Internally Limited
D
P
TST Storage Temperature -65 to +150
o
C
TOP Operating Junction Temperature Range 0 to +150
Advanced Power Electronics Corp.
www.a-power.com.tw
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o
C
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