R1501x Series
1A 24V Input VR
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 temperature is -40°C to 105°C and the maximum input voltage is 24V, the R1501x series are
very suitable for power source of car accessories.
FEATURES
• Supply Current (ISS) ························Typ. 70μA (VIN=24V)
• Temp. coeff of Output Voltage ··················· 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
• 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%
°
°
°
(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
Thermal Shutdown
Circuit
VDD
VOUT
Vref
Short
Protection
Current Limit
CE
GND
SELECTION GUIDES
.
xxx : Specify the output voltage within the range 3.0V (
.
030
.
) to 12.0V (
.
120
.
)
Package
HSOP-6J
Quantity per Reel
Part No.
in 0.1V steps and 12.5V (
.
125
.
) to 18.0V (
.
180
.
) in 0.5V steps.
1,000 pcs
3,000 pcs
R1501S
.
xxxB-E2-F
TO-252-5-P2
R1501J
.
xxxB-T1-F
PACKAGES (Top View)
TYPICAL CHARACTERISTIC
R1501x180B Output Voltage vs. Output Current
HSOP-6J
TO-252-5-P2
6
5
4
20.0
16.0
VIN=18.5V
VIN=19.0V
VIN=20.0V
12.0
8.0
4.0
0
1
2
3
1
2
3
4
5
1
2
3
4
5
6
VDD
1
2
3
4
5
VDD
GND∗
GND∗
CE
GND∗
GND∗
CE
GND∗
VOUT
0
0.5
1.0
1.5
2.0
VOUT
Output Current IOUT (A)
) 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
No.EK-184-091101
CMOS Voltage Regulator