APL5525/5526
Dual Channel 500mA Regulator + Reset IC
Features
•Low Quiescent Current : 130 A (No load)
•Low Dropout Voltage : VDROP1=550mV@500mA VDROP2=630mV@500mA
•Fixed Output Voltage :
VOUT1=3.3V/500mA
VOUT2=2.5V/500mA
•Stable with 4.7 F Output Capacitor
•Stable with Aluminum, Tantalum or Ceramic Capacitors
•Reverse Current Protection
•No Protection Diodes Needed
•Built in Thermal Protection
•Fast Transient Response
•Short Setting Time
•SOP-8, SOP-8-P with Thermal Pad Packages
•Adjustment-free Reset Detection Voltage : 3.9V or 4.2V typ
•Easy to Set Delay Time from Voltage Detection to Reset Release
Applications
•CD-ROM drive.
General Description
The APL5525/6 is a dual-channel regulator with reset function (specific voltage monitoring), and internal delay circuit, set to detect 3.9V or 4.2V. Maximum input voltage is 6V, output1 and output2 deliver up to 500mA. VOUT1 typical dropout voltage is 550mV at 500mA loading and VOUT2 typical dropout voltage is 630mV at 500mA loading. Design with an internal P- channel MOSFET pass transistor, the APL5525/6 maintains a low supply current. Other features include, thermal-shutdown protection, current limit protection to ensure specified output current. The APL5525/6 come in miniature SOP-8 and SOP-8-P packages.
Pin Configuration
SOP-8 Top View
C d |
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C O N T |
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SOP-8-P Top View
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G N D R E S E T |
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V D E T |
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V O U T 2 |
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V O U T 2 |
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V I N |
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APL5525 |
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APL5526 |
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= Thermal Pad
(connected to GND plane for better heat dissipation)
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. |
1 |
www.anpec.com.tw |
Rev. A.3 - Jul., 2003 |
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APL5525/5526
Ordering and Marking Information
APL5525/6 - |
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Package Code |
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Lead Free Code |
K : SOP-8 |
KA : SOP-8-P |
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Temp. Range |
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Handling Code |
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C : 0 to 70° C |
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Temp. Range |
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Handling Code |
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Package Code |
TR : Tape & Reel |
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Detection Voltage : |
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Detection Voltage |
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A : 3.9V |
B : 4.2V |
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Lead Free Code |
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L : Lead Free Device |
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Blank : Orginal Device |
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APL5525/6 K / KA : |
APL5525/6X |
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- Detection Voltage |
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XXXXX |
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XXXXX |
- Date Code |
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Pin Description
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PIN |
I/O |
Description |
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No. |
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Name |
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Delay time capacitor pin, RESET pin output delay time can be set by |
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Cd |
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the capacitor connected to the Cd pin. tPLH = 130000 C, tPLH : |
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transmission delay time (s), C:capacitor value (F) |
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O |
Input voltage detection output pin , low = VDET<VS , high = VDET>VS |
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RESET |
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RESET |
O |
Input voltage detection output pin , high = VDET<VS , low = VDET>VS |
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VDET |
I |
Input pin of voltage detection. |
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VIN |
I |
Voltage supply input pin. |
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VOUT1 |
O |
Regulator output pin. |
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VOUT2 |
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Regulator output pin. |
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GND |
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GND pin |
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CONT |
I |
VOUT1 on/off-control pin, VOUT1 will be turn off when CONT pull to low. |
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Absolute Maximum Ratings
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Sym bol |
Param eter |
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Rating |
Unit |
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VIN, VO UT |
Input Voltage or Out Voltage |
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6 |
V |
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CONT |
VOUT1 Shutdown Control Pin |
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6 |
V |
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VDET |
RESET Pin Supply Voltage |
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6 |
V |
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RTH,JA |
Therm al Resistance – Junction to Am bient |
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SOP-8 |
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160 |
° C/W |
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SOP-8-P |
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80 |
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PD |
Power Dissipation |
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Internally Lim ited |
W |
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TJ |
Operating Junction Tem perature |
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Control Section |
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0 to 125 |
° C |
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Power Transistor |
0 to 150 |
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TSTG |
Storage Tem perature Range |
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-65 to +150 |
° C |
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TL |
Lead Tem perature (Soldering, 10 second) |
260 |
° C |
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Copyright ANPEC Electronics Corp. |
2 |
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www.anpec.com.tw |
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Rev. A.3 - Ju1., 2003 |
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APL5525/5526
Electrical Characteristics
Unless otherwise noted these specifications apply over full temperature , VIN=5V, CIN=1 F,COUT1=4.7 F, COUT2=4.7 F, CONT=VIN, TJ=0 to 125° C . Typical values refer to TJ=25° C .
Symbol |
Parameter |
Test Conditions |
APL5525/6 |
Unit |
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Min. |
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Typ. |
Max. |
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VIN |
Input Voltage |
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6 |
V |
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Quiescent Current |
IOUT1 =0mA, IOUT2 =0mA |
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130 |
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A |
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IQ |
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Shutdown Supply |
CONT = low |
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100 |
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A |
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Current |
IOUT2=0mA, VIN =6.0V |
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ICONT |
Shutdown Input Bias |
VCONT =VIN |
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0.1 |
A |
current |
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VCONT |
High Threshold Voltage |
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1.6 |
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VIN+0.3 |
V |
Low Threshold Voltage |
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-0.3 |
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0.4 |
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ICCQ |
VDET Input Current |
VDET =5V |
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40 |
A |
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Regulator1 |
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VOUT1 |
Output Voltage |
VIN=5V |
3.234 |
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3.3 |
3.366 |
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ILIMIT |
Circuit Current Limit |
VIN=5V |
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950 |
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mA |
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IOUT |
Load Current |
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500 |
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mA |
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REGLINE |
Line Regulation |
VOUT+0.5V< VIN<6.0V, IOUT=10mA |
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4 |
6 |
mV |
REGLOAD |
Load Regulation |
VIN =5V, 0mA< IOUT < IMAX |
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25 |
60 |
mV |
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Dropout Voltage(Note) |
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VDROP |
(VOUT(Nominal)=3.3V |
IOUT =500mA |
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550 |
650 |
mV |
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Version) |
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PSRR |
Ripple Rejection |
F≤ 1kHz, 1Vpp at IOUT=50mA |
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50 |
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dB |
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Over Temperature |
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125 |
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° C |
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Shutdown |
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OTS |
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Over Temperature |
Hysteresis |
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10 |
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° C |
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Shutdown Hysteresis |
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Output Voltage |
Ta= -20 ~ 80° c |
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ppm/° C |
TC |
Temperature |
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100 |
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Coefficient |
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COUT |
Output Capacitor |
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4.7 |
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F |
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ESR |
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0.01 |
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1 |
Ohm |
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Regulator2 |
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VOUT2 |
Output Voltage |
VIN=5V |
2.45 |
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2.5 |
2.55 |
V |
ILIMIT |
Circuit Current Limit |
VIN=5V |
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950 |
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mA |
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IOUT |
Load Current |
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500 |
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mA |
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Copyright ANPEC Electronics Corp. |
3 |
www.anpec.com.tw |
Rev. A.3 - Ju1., 2003 |
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APL5525/5526
Electrical Characteristics (Cont.)
Unless otherwise noted these specifications apply over full temperature , VIN=5V, CIN=1µ F,COUT1=4.7µ F, COUT2=4.7µ F, CONT=VIN, TJ=0 to 125° C . Typical values refer to TJ=25° C .
Symbol |
Parameter |
Test Conditions |
APL5525/6 |
Unit |
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Min. |
Typ. |
Max. |
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REGLINE |
Line Regulation |
VOUT+0.5V< VIN<6.0V, IOUT=10mA |
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6 |
mV |
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REGLOAD |
Load Regulation |
VIN =5V, 0mA< IOUT < IMAX |
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50 |
mV |
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Dropout Voltage(Note) |
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VDROP |
(VOUT(Nominal)=2.5V |
IOUT =500mA |
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630 |
750 |
mV |
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Version) |
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PSRR |
Ripple Rejection |
F≤ 1kHz, 1Vpp at IOUT=50mA |
45 |
52 |
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dB |
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Over Temperature |
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125 |
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° C |
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Shutdown |
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OTS |
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Over Temperature |
Hysteresis |
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10 |
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° C |
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Shutdown Hysteresis |
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Output Voltage |
Ta= -20 ~ 80° c |
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ppm/° C |
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TC |
Temperature |
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100 |
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Coefficient |
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COUT |
Output Capacitor |
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4.7 |
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µ F |
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ESR |
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0.01 |
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1 |
Ohm |
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RESET / RESET |
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VS |
Detection Voltage |
VDET=H!L (APL5525/6A) |
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3.9 |
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V |
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VDET=H!L (APL5525/6B) |
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4.2 |
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µVS/µT |
Vs Temperature |
Ta = -20~+80°C |
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100 |
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ppm/°C |
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Coefficient |
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µVS |
Hysteresis Voltage |
VDET = H!L |
130 |
180 |
230 |
mV |
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VOL |
Low-level Output |
VDET = 3.9V, RL = 4.7kΩ |
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12 |
60 |
mV |
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Voltage |
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IOH |
Output Leakage |
VDET = 5V |
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0.5 |
1 |
µA |
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Current |
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IOL1 |
Output Current1 |
VDET =3.9V, VRESET = 0.4V |
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30 |
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mA |
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IOL2 |
Output Current2 |
VDET = 3.9V, VRESET = 0.4V |
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25 |
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mA |
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Ta = -20~+80° C |
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tPLH |
“H” Transmission Delay |
Cd = 0µF |
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42 |
90 |
µs |
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Time |
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tPLH1 |
Reset Delay Time |
VDET = 3.7V!5V, Cd = 0.1µF |
8 |
13 |
18 |
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tPHL |
“L” Transmission Delay |
Cd = 0µF |
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4 |
90 |
µs |
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Time |
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VOPL |
Threshold Operating |
VRESET = 0.4V |
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0.95 |
1.25 |
V |
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Voltage |
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Note : Dropout voltage definition : VIN- VOUT when VOUT is 2% below the value of VOUT for VIN=5V |
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Copyright ANPEC Electronics Corp. |
4 |
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www.anpec.com.tw |
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Rev. A.3 - Ju1., 2003 |
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APL5525/5526
Application Circuit
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3.3V |
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VIN |
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VOUT1 |
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1µ F |
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RL |
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VDET |
APL5525/6 |
COUT1 |
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4.7µ F |
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(ceramic) |
4.7kΩ |
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VOUT2 |
2.5V |
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RESET |
GND |
COUT2 |
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Cd |
CONT |
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4.7µ F |
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(ceramic) |
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0.1µ F |
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Copyright ANPEC Electronics Corp. |
5 |
www.anpec.com.tw |
Rev. A.3 - Ju1., 2003 |
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