Anpec APL5158 150ma cmos low dropout regulator with power ok Datasheet

APL5158
150mA CMOS Low Dropout Regulator With Power OK
Features
General Description
•
Ultra low ground current : 60µA
•
Low Dropout Voltage Regulator, 1.5V
•
150mA Load Current Capability
•
Output Voltage Accuracy : ±2% Over Temp.
•
Input Voltage Range of 2.7V to 6.0V
•
Power Good (POK) Function
•
Current Limit Protection
•
Thermal Shutdown Protection
•
Fast Transient Response
•
Stability with low-ESR capacitors
•
TTL Logic controlled enable input
The APL5158 is a precise CMOS LDO with power ok
function. The APL5158 offers 2% output accuracy
over temp, and an ultra low ground current 60µA.
The power good function monitors the output voltage
and indicates when an error occurs in the system
(active low).In the event of an output fault such as
over current, thermal shutdown, the power ok output
is pulled low. The APL5158 also works with low-ESR
output capacitors, reducing the amount of board space
for power applications, critical in hand-held wireless
devices. Key features include current-limit, thermal
shutdown, fast transient response. A compact package SOT-23-5 is available for space saving purpose.
•
SOT-23-5 Package
Pin Configuration
Applications
•
Processor power up sequencing
•
Laptop,notebook, and palmtop computers
•
Wireless LAN
V IN
1
GND
2
EN
3
5
VOUT
4
POK
SOT-23-5
Ordering and Marking Information
P ackage C ode
B : S O T -2 3 -5
Tem p. R ange
C : 0 to 7 0 C
H a n d lin g C o d e
TR : Tape & R eel
V o lt a g e C o d e :
1 2 : 1 .2 V
L e a d F re e C o d e
L : L e a d F r e e D e v ic e
B la n k : O r ig in a l D e v ic e
APL5158 L e a d F re e C o d e
°
H a n d lin g C o d e
Tem p. R ange
P ackage C ode
V o lt a g e C o d e
5 - 1 .2 V
X - D a te C o d e
185X
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.
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
1
www.anpec.com.tw
APL5158
Pin Description
PIN
Name
VIN
GND
EN
POK
VOUT
No.
1
2
3
4
5
I/O
I
Description
Input supply voltage.
Ground pin for signal ground and power ground.
Enable/shutdown input (active high). Do not leave open.
Power OK indicator.
Regulator output voltage.
I
O
O
Block Diagram
VIN
EN
Shutdown
Control
Current Sense
Voltage
Reference
VOUT
Thermal
Protection
Voltage
Supervisor
Power Okay
Control
POK
2.5ms Delay
GND
Absolute Maximum Ratings
Symbol
VIN
VEN
PD
TJ
TSTG
TS
ESD
Parameter
Rating
7
Unit
V
Enable Input Voltage
7
V
Power Dissipation
Junction Temperature
Storage Temperature
Internally Limited
150
-65 to +150
W
Input Voltage
Soldering Temperature (10 seconds)
ESD Classification
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
300
2
2
°C
°C
°C
kV
www.anpec.com.tw
APL5158
Thermal Characteristics
Symbol
θJA
Parameter
Rating
Unit
260
°C/W
Thermal Resistance in Free Air
SOT-23-5
Electrical Characteristics
TA=25°C, VI=5V, V(EN) =VI, IO=100µA, CL=1µF, unless otherwise specified.
Symbol
V IN
V OUT
IQ
IGND
IL
ILIMIT
△V LNR
△V LDR
Parameter
Input Voltage
Output Voltage
Output Voltage Accuracy
Quiescent Current
Ground Term inal Current
Output Load Current
Output Current Lim it
Line Regulation
Load Regulation
V IN -V OUT Dropout Voltage
Load Capacitance
Reverse Output Current on
IREV
V IN
Enable Input
Enable Input Logic-Low
V IL
Voltage
Enable Input Logic-High
V IH
Voltage
CL
IEN
Enable Input Current
Resistance Discharge
Therm al Protection
T SD
Therm al Shutdown
T SDHYS Hysteresis
Power Good
Low Threshold
V POK
High Threshold
Test Conditions
IO =25m A
IO =0m A
IO =1~150m A,T A =0°C to 70°C
V (EN) ≦0.8V
IO =0m A
IO =150m A
V IN =2.7V to 6V
IO =10m A to 150m A
IO =100µA
IO =150m A
ESR and Capacitance Tradeoffs
V IN =GND, V OUT = Regulated Voltage
V IN =2.7V to 6V Regulated Enabled
V OL
V O Out of Regulation
POK Leakage Current
Power good off,V IN =5V
Output Transient Tim e Lim it
Output Transient Voltage
Lim it
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
0.4
1.6
Shutdown, V IL ≦0.8V
Enabled, V IH ≧2V
V EN ≦0.8V
IPOK
tSTEP
4
V IN =2.7V to 6V Regulated Shutdown
Output Falls % of V OUT (Power not OK)
Output Reaches % of V O ,Starts Delay
Tim er(Power OK)
Fault Condition,IOL =2m A,V IN =3.3V
Switching Characteristics
Power Up Overshoot
APL5158
M in. Typ. M ax.
2.7
6
1.2
-1.0
+1.0
-2.0
+2.0
0.45
1
60
370
150
300 600
-0.1
+0.1
0.2
1
1.5
1.5
1
Max Voltage Overshoot Allowed on
Output During Power Up
Tim e for Output to Return within
Specified Regulation Range
Voltage that Load Step can Affect the
Nom inal Output Voltage
3
Unit
V
V
%
%
µA
µA
µA
mA
mA
%
%
V
V
µF
mA
V
V
0.01
0.01
500
µA
µA
Ω
150
15
°C
°C
83
90
%
%
0.13 0.15
1
V
µA
1
%
5
µs
1
%
www.anpec.com.tw
APL5158
Electrical Characteristics Cont.
TA=25°C, VI=5V, V(EN) =VI, IO=100µA, CL=1µF, unless otherwise specified.
Symbol
Parameter
Test Conditions
ISR
tr
tf
Load Step Current Slew
Rate
Power Up Rise Time
Power Down Fall Time
APL5158
Min. Typ. Max.
Unit
10
mA/µs
3
ms
60
µs
IL=10mA to 150mA
Discharge resistance=500Ω,
VO<1.08V
VPOK
Delay Time to Power Good
1
2.5
5
ms
Delay
Note 1 : Positive output current means the regulator is sourcing load current, and negative one is sinking
load current.
Application Circuit
VOUT=1.2V
VIN=3 to 6V
1
2
3
1µF
VOUT
VIN
5
GND
10KΩ
EN
POK
APL5158
4
1µF
Typical Application For Processor VID Code Power Sequencing Schematic
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
4
www.anpec.com.tw
APL5158
Timing Chart
EN
VI
Fault Condition
90% max
83% min
VO
2.5ms
2.5ms
POK Delay 2.5 ms typ.
POK
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
5
www.anpec.com.tw
APL5158
Typical Characteristics
Ground Pin Current vs. Output Current
Current Limit vs. lnput Voltage
400
700
350
Ground Pin Current (uA)
Current Limit (mA)
600
500
400
300
200
100
VIN = 5V
300
250
200
150
100
50
0
0
3
3.5
4
4.5
5
5.5
0
6
25
Input Voltage (V)
75
100
125
150
Output Current (mA)
POK Delay Time vs. Input Voltage
POK Sink Current vs. POK Low Voltage
5
20
POK Sink Current (mA)
POK Delay Time (ms)
50
4
IOL = 100uA
3
2
16
12
VIN = 3.3 V
POK is connected to VIN
8
4
0
1
2
3
4
5
0
6
Input Voltage (V)
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
0.5
1
1.5
2
2.5
3
3.5
POK Low Voltage (V)
6
www.anpec.com.tw
APL5158
Typical Characteristics
Ground Pin Current vs. Input Voltage
EN Threshold Voltage vs. lnput Voltage
200
1.6
High Thershold
1.2
Ground Pin Current (uA)
EN Threshold Voltage (V)
1.4
1
0.8
0.6
Low Thershold
0.4
0.2
0
IOUT =0mA
150
100
50
0
2
3
4
5
6
0
1
2
3
4
5
6
Input Voltage (V)
lnput Voltage (V)
Line Transient Response
Load Transient Response
VIN = 3.3V
VOUT (10mV/div)
VIN = 3V to 4V
VOUT (20 mV/div)
IOUT = 0.1mA to 150mA
(10mA /µs)
Time (20us/div)
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
Time (20us / div)
7
www.anpec.com.tw
APL5158
Typical Characteristics
Region of Stable COUT ESR vs. Output Current
Power Up
10
VIN (2V/div)
VOUT = 1.2V
COUT = 1uF
COUT ESR(Ω)
1
Stable Region
VOUT(0.5V/div)
0.1
0.01
POK(0.5V/div)
Untested Region
0.001
0
50
100
150
Time (2ms/div)
Output Current (mA)
Exiting Shutdown
Power Down
EN (2V/div)
VIN (2V/div)
VOUT(0.5V/div)
VOUT(0.5V/div)
POK(0.5V/div)
POK(0.5V/div)
Time (50ms/div)
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
Time (2ms/div)
8
www.anpec.com.tw
APL5158
Typical Characteristics
Output Voltage vs. Temperature
VIN =3.3V
VIN =3.3V
1.200
3.8
POK Delay Time (ms)
Output Voltage (V)
POK Delay Time vs. Temperature
4
1.202
1.198
1.196
1.194
1.192
1.190
1.188
3.6
3.4
3.2
3
2.8
-40 -20
0
20
40
60
80
100 120
-40
Temperature (°C)
-20
0
20
40
60
80
100
Temperature (°C)
Quiescent Current vs. Temperature
90
Quiescent Current (uA)
IOUT =0mA
80
VIN =5V
70
60
50
VIN =3.3V
40
30
-40
-20
0
20
40
60
80
100 120
Temperature (°C)
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
9
www.anpec.com.tw
APL5158
Application Information
Capacitor Selection and Regulator
Power Ok
Stability
The power ok function monitors the output voltage
and drives high or low to indicate a fault. When a
fault condition such as overcurrent, undervoltage, thermal shutdown., or dropout occurs, the power ok output is pulled low. The power ok output comes back
when the output voltage has reached 90% of it’s nominal value and with a typ. 2.5ms delay time. The power
ok is an open-drain output, connect a 10kΩ resistance to VOUT for typical application
The APL5158 use at least a 1uF capacitor on the
input. This capacitor can use Aluminum, Tantalum or
Ceramic capacitors. Input capacitor with large value
and low ESR provides better PSRR and line-transient
response. The output capacitor also can use
Aluminum, Tantalum or Ceramic capacitors, and it’s
minimum values is recommended 1uF, ESR muse be
above 0.01Ω. The Curve of the region of stable COUT
ESR vs. load current in Typical Characteristics shows
the output capacitor ESR and load current range for
APL5158 stability. Large output capacitor values can
reduce noise and improve load-transient response,
stability, and PSRR. Note that some ceramic dielectrics exhibit large capacitance and ESR variation with
Temperature. If use this capacitor, it may be necessary to use 2.2uF or more to ensure stability at temperature below -10°C.
Input-Output (Dropout)Voltage
The minimun input-output voltage differential (dropout)
determines the lowest usable supply voltage. The minimum input voltage is 2.7V and output voltage is 1.2V,
so the dropout voltage is 1.5V.
Reverse Protection
Load-Transient Considerations
The APL5158 has a internal reverse protection, it
doesn’t need a external schottky diode to connect the
regulator input and output. If the output voltage is
forced above the input voltage, the IC will be shutdown and the reverse output current is below 4mA , it
will increase with the output voltage. The maximum
allowable output voltage is 7V (see Absolute Maximum Rantings).
The APL5158 Load-transient response graphs in Typical Characteristics show the transient response. A
step change in the load current from 0.1mA to 150mA
at 15u second will cause less than 10mV transient
spike. Large output capacitor’s value and low ESR
can reduce transient spike.
Shutdown/Enable
Current Limit
The APL5158 has an active high enable function.
Force EN high (>1.6V) enables the regulator, EN low
(<0.4V) disables the regulator and enter the shutdown mode, it also causes the output voltage to discharge through a 500Ω resistance to ground. In shutdown mode, the quiescent current can reduce below
1uA. The EN pin cannot be floating, a floating EN pin
may cause an indeterminate state on the output. If it
is no use, connect to VIN for normal operation.
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
The APL5158 has a current limit protection, which
senses the current flows the P-channel MOSFET, and
controls the output voltage. The point where limiting
occurs is IOUT=600mA and the output voltage will be
shutdown. The output can be shorted to ground for
an indefinite amount of time without damaging the
part.
10
www.anpec.com.tw
APL5158
Application Information
Thermal Protection
Thermal protection limits total power dissipation in the
APL5158. When the junction temperature exceeds
TJ=+150°C, the thermal sensor generate a logic signal to turn off the pass transistor and let IC to cool.
When the IC’s junction temperature cools by 15°C,
the thermal sensor will turn the pass transistor on
again, resulting in a pulsed output during continuous
thermal protection. Thermal protection is designed to
protect the IC in the event of fault conditions. For
continual operation, do not exceed the absolute maximum junction temperature rating of TJ=+150°C.
Operating Region and Power Dissipation
The thermal resistance of the case and circuit board,
ambient and junction air temperature, and the rate of
air flow all control the APL5158’s maximum power
dissipation. The power dissipation across the device
is P = IOUT (VIN-VOUT). The maximum power dissipation is:
PMAX = (TJ-TA) / (θJB +θBA)
where TJ-TA is the temperature difference between
the junction and ambient air. θJB(or θJB) is the thermal
resistance of the package, θBA is the thermal resistance through the printed circuit board, copper
traces, and other materials to the surrounding air.
The GND pin of the APL5158 provide an electrical
connection to ground and channeling heat away.
Connect the GND pin to ground using a large pad or
ground plane as a heatsink, it can improve maximize
thermal dissipation.
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
11
www.anpec.com.tw
APL5158
Packaging Information
SOT-23-5
e1
5
4
E1
1
E
3
2
e
b
D
A2
A
a
A1
Dim
A
A1
A2
b
D
E
E1
e
e1
L
L1
L2
N
α
L2
L
M illimeters
M in .
0.95
0.05
0.90
0.30
2.8
2.6
1.5
Inches
M ax.
1.45
0.15
1.30
0.50
3.00
3.00
1.70
M in.
0.037
0.002
0.035
0.011
0.110
0.102
0.059
0.55
0.014
0.7
0.020
0.20 BSC
0.5
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
0.022
0.008 BSC
5
0°
M ax.
0.057
0.006
0.051
0.019
0.118
0.118
0.067
0.037BSC
0.074BSC
0.95BSC
1.90BSC
0.35
L1
0.028
5
10°
12
0°
10°
www.anpec.com.tw
APL5158
Physical Specifications
Terminal Material
Lead Solderability
Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb), 100%Sn
Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3.
Reflow Condition
(IR/Convection or VPR Reflow)
tp
TP
Critical Zone
T L to T P
Temperature
Ram p-up
TL
tL
Tsm ax
Tsm in
Ram p-down
ts
Preheat
25
t 25 °C to Peak
Tim e
Classificatin Reflow Profiles
Profile Feature
Sn-Pb Eutectic Assembly
Large Body
Small Body
Average ramp-up rate
3°C/second max.
(TL to TP)
Preheat
- Temperature Min (Tsmin)
100°C
- Temperature Mix (Tsmax)
150°C
- Time (min to max)(ts)
60-120 seconds
Tsmax to TL
- Ramp-up Rate
Tsmax to TL
- Temperature(TL)
183°C
- Time (tL)
60-150 seconds
Peak Temperature(Tp)
225 +0/-5°C
240 +0/-5°C
Time within 5°C of actual Peak
10-30 seconds
10-30 seconds
Temperature(tp)
Ramp-down Rate
6°C/second max.
6 minutes max.
Time 25°C to Peak Temperature
Pb-Free Assembly
Large Body
Small Body
3°C/second max.
150°C
200°C
60-180 seconds
3°C/second max
217°C
60-150 seconds
245 +0/-5°C
250 +0/-5°C
10-30 seconds
20-40 seconds
6°C/second max.
8 minutes max.
Note: All temperatures refer to topside of the package. Measured on the body surface.
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
13
www.anpec.com.tw
APL5158
Reliability Test Program
Test item
SOLDERABILITY
HOLT
PCT
TST
ESD
Latch-Up
Method
MIL-STD-883D-2003
MIL-STD-883D-1005.7
JESD-22-B,A102
MIL-STD-883D-1011.9
MIL-STD-883D-3015.7
JESD 78
Description
245°C, 5 SEC
1000 Hrs Bias @125°C
168 Hrs, 100%RH, 121°C
-65°C~150°C, 200 Cycles
VHBM > 2KV, VMM > 200V
10ms, 1tr > 100mA
Carrier Tape
t
D
P
Po
E
P1
Bo
F
W
Ko
Ao
D1
T2
J
C
A
B
T1
Application
SOT-23-5
A
B
C
J
178±1
72 ± 1.0
F
D
D1
Po
3.5 ± 0.05
1.5 +0.1
1.5 +0.1
4.0 ± 0.1
13.0 + 0.2 2.5 ± 0.15
T1
T2
P
E
1.5± 0.3
W
8.0+ 0.3
- 0.3
8.4 ± 2
4 ± 0.1
1.75± 0.1
P1
Ao
Bo
Ko
t
3.2± 0.1
1.4± 0.1
0.2±0.03
2.0 ± 0.1 3.15 ± 0.1
(mm)
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
14
www.anpec.com.tw
APL5158
Cover Tape Dimensions
Application
SOT- 23
Carrier Width
8
Cover Tape Width
5.3
Devices Per Reel
3000
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
Copyright  ANPEC Electronics Corp.
Rev. A.5 - Aug., 2004
15
www.anpec.com.tw