APL1087E
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders.? Guaranteed Output Voltage Accuracy within 2%? Fast Transient Response
? Guaranteed Dropout Voltage at Multiple Cur- rents
? Load Regulation : 0.6% Typ.? Line Regulation : 0.03% Typ.
? Low Dropout Voltage : 1.3V Typ. at I OUT =500mA ? Current Limit : 0.8A Min. at T J =125°C ? On-Chip Thermal Limiting : 150 °C Typ.? Adjustable Output : 1.25~7.15V
? Standard 3-pin SOT-89, SOT-223,TO-92 and
TO-252 Power Packages.
Features
General Description
The APL1087E is a low dropout three-terminal ad-justable regulators with 0.8A output current capability.In order to obtain lower dropout voltage and faster transient response, which is critical for low voltage applications , the APL1087E has been optimized.The device is available in an adjustable version and fixed output voltages of 1.8V, 2.5V and 3.3V, the out-put available voltage range is from 1.25~7.15V with an input supply below 9V. Dropout voltage is guaran-teed at a maximum of 1.45V at 0.5A.
Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any com-bination of overload that would create excessive junc-tion temperatures.
The APL1087E is available in the industry standard 3-pin SOT-89, SOT-223,TO-92 and TO-252 power packages.
Pin Description
Applications
? Voltage Regulator for CD-ROM Drivers ? Voltage Regulator for LAN Cards ? Voltage Regulator for mother Boards ? Wireless Communication Systems ? Portable Instrument
? Portable Consumer Equipment ? Low Voltage Systems
V IN V OUT
GND
TO-92 (Top View)
SOT-89 (Front View)V IN
V OUT
GND
2
1
3
123
V
I N
V
O U T
G N D TO-252 (Front View)
123
V IN V O UT GND SOT-223 (Front View)
APL1087E
Ordering and Marking Information
A P L1
A P L1
A P L1
A P L1
Absolute Maximum Ratings
APL1087E
Electrical Characteristics
APL1087E
V IN
10μ
OUT
μF
Application Circuits
* Needed if device is far from filter capacitors
1.25V to 7.15V Adjustable Regulator
Improving Ripple Rejection
R1
R2R11.250V V OUT +×
=V IN
TTL
00μ
F
5V
5V Regulator with Shutdown
V IN
V O U T
μF 2
*
* C 3 improves ripple rejection. X C should be approximately equal to R1 at ripple frequency
Electrical Characteristics (Cont.)
Note 1: See thermal regulation specifications for changes in output voltage due to heating effects. Load line regulations are mea-sured at a constant junction temperature by low duty cycle pulse testing.
Note 2: Dropout voltage is specified over the full output current range of the device. Dropout voltage is defined as the minimum input/output differential measured at the specified output current. Test points and limits are also shown on the Dropout Voltage curve.Note 3: Minimum load current is defined as the minimum output current required to maintain regulation.
APL1087E
0.1
0.2
0.3
0.40.5
0.6
0.7
0.8
0.9
1
-0.5
0.51
1.52
2.5
3
3.5-30
-25-20-15-10-50510
Typical Characteristics
Load Transient Response
O u t p u t C u r r e n t (A )
O u t p u t V o l t a g e D e v i a t i o n (m V )
Time (μs)Line Transient Response
I n p u t V o l t a g e (V )
O u t p u t V o l t a g e D e v i a t i o n (m V )
Time (μ
s)
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
-20
-100
10203040
50
12
3456
7
Adjust Pin Current vs. Temperature
-50
50
100
150
55
56575859606162
A d j u s t P i n C u r r e n t (μA )
Current Limit vs. Temperature
-50
50
100
150
760780800820840
860880900920
940C u r r e n t L i m i t (m A )
Temperature (°C)Temperature(°
C)
APL1087E
Typical Characteristics (Cont.)
Dropout Voltage vs. Temperature
-50
-25
25
50
75
100
125
150
11.051.11.151.21.251.31.351.41.45
1.5D r p o u t V o l t a g e (V )
Temperature (°
C)
3333-50
-250255075100125
Output Voltage vs. Temperature
O u t p u t V o l t a g e (V )
Temperature (°C)
Reference Voltage vs. Temperature
-50
-250255075100125150
1.22
1.2251.231.2351.241.2451.251.255R e f e r e n c e V o l t a g e (V )
Temperature (°C)
1111222222-50
-250255075100125
Output Voltage vs. Temperature
O u t p u t V o l t a g e (V )
Temperature (°C)
APL1087E
Typical Characteristics (Cont.)
Current Limit vs. Input Voltage
C u r r e n t L i m i t (m A )
Input Voltage (V)
Load Regulation vs. Output Current
12
34567
8
L o a d R e g u l a t i o n (m V )
Output Current (mA)Dropout Voltage vs. Output Current
0200400600800
0.4
0.60.811.21.41.6
1.8
D r o p o u t V o l t a g e (V )
Output Current (mA)
01230
1
2
3
4
5
6
7
8
9
Output Voltage vs. Input Voltage
Input Voltage (V)O u t p u t V o l t a g e (V )
456789
830
840
850860870880890900910920
930940
APL1087E
Package Information
SOT-89 (Reference EIAJ ED-7500A Reg stration SC-62)
APL1087E
Package Information
SOT-223( Reference JEDEC Registration SOT-223)
APL1087E Package Information TO-92
APL1087E
Package Informaion
TO-252( Reference JEDEC Registration TO-252)
APL1087E
Physical Specifications
T L
T P
25
T e m p e r a t u r e
Tim e
Reflow Condition (IR/Convection or VPR Reflow)
Classificatin Reflow Profiles
APL1087E
Carrier Tape & Reel Dimensions
Reliability Test Program
APL1087E
Carrier Tape & Reel Dimensions
(m m) Cover Tape Dimensions
Customer Service
Anpec Electronics Corp.
Head Office :
5F, No. 2 Li-Hsin Road, SBIP,
Hsin-Chu, Taiwan, R.O.C.
Tel : 886-3-5642000
Fax : 886-3-5642050
Taipei Branch :
7F, No. 137, Lane 235, Pac Chiao Rd.,
Hsin Tien City, Taipei Hsien, Taiwan, R. O. C.
Tel : 886-2-89191368
Fax : 886-2-89191369