R1501x Series
1A 24V Input VR
No.EK-184-091101 CMOS Voltage Regulator
The R1501x Series are CMOS-based voltage regulators featuring 1A output current and 24V input voltage. The R1501x series
provides high input voltage operation and low on-resistance (at VOUT = 10V, below 0.6Ω) because of using CMOS transistor . In addition
to a fold-back protection circuit built into conventional regulators, R1501x contains a thermal shutdown circuit. Besides the low
supply current by CMOS, the operating te mperature is -40°C to 105°C and the maximum input voltage is 24V, the R1501x ser ies are
very suitable for power source of car accessories.
FEATURES
• Supply Current (ISS)························Typ. 70μA (VIN=24V)
• Standby Current (Istandby) ·················Typ. 0.1μA (VIN=24V, CE="L")
• Dropout Voltage (VDIF) ····················Typ. 0.575V (IOUT=1A, VOUT=5V)
• Input Voltage Range (VIN)···············3V to 24V (Absolute maximum rating: 36V)
• Ripple Rejection(RR) ····················Typ. 60dB (f=1kHz, VOUT
<
=
6V)
Typ. 50dB (f=1kHz, VOUT>6V)
• Output Voltage Range (VOUT)··········3.0V to 18.0V (internally fixed)
• Output Voltage Accuracy················± 2%
• Temp. coe f f of Output Volt age···················Typ. ± 100ppm/°C
• Line Regulation········································Typ. 0.05%/V
• Fold-back Protection Circuit·····················Current limit Typ. 65mA
• Thermal Shutdown Circuit ·······················Stops at Typ. 160°C.
• Packages···················································· HSOP-6J, TO-252-5-P2
• Ceramic capacitors can be used. ············10μF or more
(The above shows specification at Topt=25°C. Design assurance value at -40°C
<
=
Topt
<
=
105°C is also available. For details, please refer to the datasheet.)
BLOCK DIAGRAM
R1501xxxxB
VDD VOUT
CE GND
Current Limit
Short
Protection
Vref
Thermal Shutdown
Circuit
SELECTION GUIDES
Package Quantity per Reel Part No.
HSOP-6J 1,000 pcs R1501S
.
xxx
B-E2-F
TO-252-5-P2 3,000 pcs R1501J
.
xxx
B-T1-F
.
xxx
: Specify the output voltage within the range 3.0V (
.
030
.
) to 12.0V (
.
120
.
)
in 0.1V steps and 12.5V (
.
125
.
) to 18.0V (
.
180
.
) in 0.5V steps.
PACKAGES (Top View) TYPICAL CHARACTERISTIC
HSOP-6J TO-252-5-P2
1 3
6 4
2
5
1 2 3 4 5
1 VDD
2 GND∗
3 GND∗
4 CE
5 GND∗
6 VOUT
1 VDD
2 GND∗
3 GND∗
4 CE
5 VOUT
R1501x180B Output Voltage vs. Output Current
0 1.50.5 1.0 2.0
Output Current IOUT (A)
Output Voltage VOUT (V)
0
20.0
12.0
8.0
16.0
4.0
VIN=18.5V
VIN=19.0V
VIN=20.0V
∗) The GND pin must be wired together when it is mounted on board.
APPLICATIONS
• Power source for home appliances such as refrigerators, rice cookers, electric water warmers, etc
• Power source for car audio equipment, car navigation systems, ETC systems, etc
• Power source for laptop personal computers, digital TVs, cordless phones, and private LAN systems for home, etc
• Power source for office equipment machines such as copiers, printers, facsimiles, scanners, etc
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.
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