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