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APL5158
150mA CMOS Low Dropout Regulator With Power OK
Features
* * * * * * * * * * * * Ultra low ground current : 60A 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 SOT-23-5 Package
General Description
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 60A. 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.
Pin Configuration Applications
* * * Processor power up sequencing Laptop,notebook, and palmtop computers Wireless LAN
V IN GND EN 1 2 3 4 POK 5 VOUT
SOT-23-5
Ordering and Marking Information
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 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
185X
5 - 1 .2 V X - D a te C o d e
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 I/O I I O O 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.
No. 1 2 3 4 5
Block Diagram
VIN
Shutdown Control Voltage Reference Thermal Protection Voltage Supervisor Power Okay Control 2.5ms Delay
EN
Current Sense
VOUT
POK
GND
Absolute Maximum Ratings
Symbol VIN VEN PD TJ TSTG TS ESD Parameter Input Voltage Enable Input Voltage Power Dissipation Junction Temperature Storage Temperature Soldering Temperature (10 seconds) ESD Classification Rating 7 7 Internally Limited 150 -65 to +150 300 2 Unit V V W C C C kV
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APL5158
Thermal Characteristics
Symbol JA Parameter Thermal Resistance in Free Air SOT-23-5 Rating 260 Unit C/W
Electrical Characteristics
TA=25C, VI=5V, V(EN) =VI, IO=100A, CL=1F, 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 Test Conditions 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 4 0.4 1.6 0.01 0.01 500 150 15 Output Falls % of V OUT (Power not OK) Output Reaches % of V O ,Starts Delay Tim er(Power OK) Fault Condition,IOL =2m A,VIN=3.3V Power good off,V IN =5V 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 % % A A A mA mA % % V V F mA V V A A C C
IO =25m A IO =0m A IO =1~150m A,T A =0C to 70C V (EN) 0.8V IO =0m A IO =150m A
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
V IN =2.7V to 6V IO =10m A to 150m A IO =100A IO =150m A ESR and Capacitance Tradeoffs V IN =GND, V OUT = Regulated Voltage
V IN =2.7V to 6V Regulated Shutdown V IN =2.7V to 6V Regulated Enabled Shutdown, V IL 0.8V Enabled, V IH 2V V EN 0.8V
Resistance Discharge Therm al Protection T SD Therm al Shutdown T SDHYS Hysteresis Power Good Low Threshold V POK High Threshold V OL IPOK V O Out of Regulation POK Leakage Current
83 90 0.13 0.15 1 1 5 1
% % V A % s %
Switching Characteristics Power Up Overshoot tSTEP Output Transient Tim e Lim it Output Transient Voltage Lim it
Copyright ANPEC Electronics Corp. Rev. A.5 - Aug., 2004
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APL5158
Electrical Characteristics Cont.
TA=25C, VI=5V, V(EN) =VI, IO=100A, CL=1F, unless otherwise specified. Symbol Parameter Test Conditions
ISR tr tf Load Step Current Slew Rate Power Up Rise Time Power Down Fall Time IL=10mA to 150mA Discharge resistance=500, VO<1.08V APL5158 Min. Typ. Max. 10 3 60 Unit mA/s ms s
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
VIN=3 to 6V 1 2 3 VIN GND EN POK 4 1F VOUT 5 VOUT=1.2V
10K
1F
APL5158
Typical Application For Processor VID Code Power Sequencing Schematic
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APL5158
Timing Chart
EN
VI Fault Condition 90% max VO POK Delay 2.5 ms typ. 83% min 2.5ms 2.5ms
POK
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APL5158
Typical Characteristics
Current Limit vs. lnput Voltage
700 600
Ground Pin Current vs. Output Current
400 350
VIN = 5V
Ground Pin Current (uA)
Current Limit (mA)
500 400 300 200 100 0 3 3.5 4 4.5 5 5.5 6
300 250 200 150 100 50 0 0 25 50 75 100 125 150
Input Voltage (V)
Output Current (mA)
POK Delay Time vs. Input Voltage
5
20
POK Sink Current vs. POK Low Voltage
POK Delay Time (ms)
4
IOL = 100uA
3
POK Sink Current (mA)
16
12
VIN = 3.3 V POK is connected to VIN
8
2
4
1 2 3 4 5 6
0 0 0.5 1 1.5 2 2.5 3 3.5
Input Voltage (V)
POK Low Voltage (V)
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APL5158
Typical Characteristics
EN Threshold Voltage vs. lnput Voltage
1.6 1.4
200
Ground Pin Current vs. Input Voltage
EN Threshold Voltage (V)
1.2 1 0.8 0.6 0.4 0.2 0 2
Ground Pin Current (uA)
High Thershold
IOUT =0mA
150
100
Low Thershold
50
0
3
4
5
6
0
1
2
3
4
5
6
lnput Voltage (V)
Input Voltage (V)
Load Transient Response
VIN = 3.3V VOUT (10mV/div)
Line Transient Response
VIN = 3V to 4V
VOUT (20 mV/div) IOUT = 0.1mA to 150mA (10mA /s)
Time (20us/div)
Time (20us / div)
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APL5158
Typical Characteristics
Region of Stable COUT ESR vs. Output Current
10
Power Up
VIN (2V/div)
1
VOUT = 1.2V COUT = 1uF Stable Region VOUT(0.5V/div)
COUT ESR()
0.1
0.01
Untested Region
0.001 0 50 100 150
POK(0.5V/div)
Output Current (mA)
Time (2ms/div)
Power Down
Exiting Shutdown
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)
Time (2ms/div)
Copyright ANPEC Electronics Corp. Rev. A.5 - Aug., 2004
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APL5158
Typical Characteristics
Output Voltage vs. Temperature
1.202
4 3.8
POK Delay Time vs. Temperature
VIN =3.3V
VIN =3.3V
1.200 1.198 1.196 1.194 1.192 1.190 1.188 -40 -20 0 20 40 60 80 100 120
POK Delay Time (ms)
Output Voltage (V)
3.6 3.4 3.2 3 2.8 -40 -20 0 20 40 60 80 100
Temperature (C)
Temperature (C)
Quiescent Current vs. Temperature
90
IOUT =0mA
Quiescent Current (uA)
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
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APL5158
Application Information
Capacitor Selection and Regulator Stability
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 0.01. 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 -10C.
Power Ok
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 10k resistance to VOUT for typical application
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
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).
Load-Transient Considerations
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
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 500 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 10
Current Limit
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.
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APL5158
Application Information
Thermal Protection
Thermal protection limits total power dissipation in the APL5158. When the junction temperature exceeds TJ=+150C, 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 15C, 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=+150C.
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) / (JB +BA) where TJ-TA is the temperature difference between the junction and ambient air. JB(or JB) is the thermal resistance of the package, BA 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
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APL5158
Packaging Information
SOT-23-5
e1
5
4 E1 E
1
2
3
e
b
D
A2
A
a
L1
A1
L2
L
Dim A A1 A2 b D E E1 e e1 L L1 L2 N
M illimeters M in . 0.95 0.05 0.90 0.30 2.8 2.6 1.5 0.95BSC 1.90BSC 0.35 0.20 BSC 0.5 5 0 10 0 0.7 0.020 0.55 0.014 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
Inches M ax. 0.057 0.006 0.051 0.019 0.118 0.118 0.067 0.037BSC 0.074BSC 0.022 0.008 BSC 0.028 5 10
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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
TP
(IR/Convection or VPR Reflow)
tp Ram p-up Critical Zone T L to T P
Temperature
TL Tsm ax
tL
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 Pb-Free Assembly Large Body Small Body 3C/second max. 150C 200C 60-180 seconds 3C/second max 217C 60-150 seconds 245 +0/-5C 250 +0/-5C 10-30 seconds 20-40 seconds
Average ramp-up rate 3C/second max. (TL to TP) Preheat - Temperature Min (Tsmin) 100C - Temperature Mix (Tsmax) 150C - Time (min to max)(ts) 60-120 seconds Tsmax to TL - Ramp-up Rate Tsmax to TL - Temperature(TL) 183C - Time (tL) 60-150 seconds Peak Temperature(Tp) 225 +0/-5C 240 +0/-5C Time within 5C of actual Peak 10-30 seconds 10-30 seconds Temperature(tp) Ramp-down Rate 6C/second max. 6 minutes max. Time 25C to Peak Temperature
Copyright ANPEC Electronics Corp. Rev. A.5 - Aug., 2004 13
6C/second max. 8 minutes max.
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Note: All temperatures refer to topside of the package. Measured on the body surface.
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 245C, 5 SEC 1000 Hrs Bias @125C 168 Hrs, 100%RH, 121C -65C~150C, 200 Cycles VHBM > 2KV, VMM > 200V 10ms, 1tr > 100mA
Carrier Tape
t P P1 D
Po E
F W
Bo
Ao
Ko D1
T2
J C A B
T1
Application
A 1781
B 72 1.0 D 1.5 +0.1
C
J
T1 8.4 2 P1
T2 1.5 0.3 Ao
13.0 + 0.2 2.5 0.15 D1 1.5 +0.1 Po 4.0 0.1
W 8.0+ 0.3 - 0.3 Bo 3.2 0.1
P 4 0.1 Ko 1.4 0.1
E 1.75 0.1 t 0.20.03
SOT-23-5
F 3.5 0.05
2.0 0.1 3.15 0.1
(mm)
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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
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