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PDF R1518x Data sheet ( Hoja de datos )
| Número de pieza | R1518x | |
| Descripción | 1A 36V Input Low Supply Current LDO | |
| Fabricantes | RICOH | |
| Logotipo |  |
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R1518x Series
AEC-Q100 Grade 1 Compliant
1 A 36V Input Low Supply Current LDO for Automotive Applications
OUTLINE
NO.EC-329-141222
R1518x is a CMOS-based LDO that specifically designed for automotive applications featuring 1 A output
current and 36 V input voltage. In addition to a conventional regulator circuit, R1518x consists of a constant
slope circuit as a soft-start function, a fold-back protection circuit, a short current limit circuit, and a thermal
shutdown circuit. Besides the low supply current by CMOS, the operating temperature is −40°C to 125°C and
the maximum input voltage is 36 V, the R1518x is very suitable for power source of car accessories.
R1518x is available in R1518xxxxB/D/E/F with the internally fixed output voltage, and R1518xxxxD/F with the
auto-discharge function at standby.
R1518J001C can adjust the output voltage with an external resistor. R1518xxxxB/C/D internally fixes the soft-
start time at 120 µs (Typ). R1518Jxx1E/F can adjust the soft-start time with an external capacitor.
R1518x is available in two packages for ultra high wattage: HSOP-6J and TO-252-5-P2.
FEATURES
● Input Voltage Range (Maximum Rating) ·············· 3.5 V to 36.0 V (50.0V)
● Operating Temperature range ··························· 40°C to 125°C
● Supply Current··············································· Typ. 18 µA
● Standby Current············································· Typ. 0.1 µA
● Dropout Voltage ············································· Typ. 0.7 V (IOUT = 1 A, VOUT = 5.0 V)
● Output Voltage Accuracy ·································· ±0.8% (VOUT ≤ 5.0 V)
● Temperature-Drift Coefficient of Output Voltage····· Typ. ±60 ppm/°C (−40°C ≤ Ta ≤ 125°C)
● Line Regulation·············································· Typ. 0.01%/V
● Packages ····················································· HSOP-6J, TO-252-5-P2
● Output Voltage Range ····································· R1518xxxxB/D/E/F: 2.5 V/2.8 V/3.0 V/3.3 V/3.4 V/5.0 V/
6.0 V/8.0 V/8.5 V/9.0 V
*Contact Ricoh sales representatives for other voltages.
R1518J001C: Adjustable from 2.5 V to 12.0 V
with external resistor
Feedback Voltage: 2.5 V
● Built-in Short Current Limit Circuit ······················ Typ. 150 mA
● Built-in Fold-Back Protection Circuit···················· Min. 1.1 A
● Built-in Thermal Shutdown Circuit ······················ Typ. 160°C
● Built-in Soft-start Circuit ··································· R1518xxxxB/C/D: Typ.120 µs
R1518Jxx1E/F: Time adjustable
● Ceramic Capacitors can be used ······················· R1518xxxxB/D/E/F: 0.1 µF or more
R1518J001C: 1.0 µF or more
1
1 page  
PIN EQUIVALENT CIRCUIT DIAGRAMS
VOUT
Driver
VOUT Pin
Internal VR
DELAY
DELAY Pin
(R1518Jxx1E/F)
R1518x
NO.EC-329-141222
IOUT
CE
CE Pin
VFB
IOUT
VFB Pin
(R1518J001C)
5
5 Page 
R1518x
NO.EC-329-141222
VIN = VSET + 1.0 V, IOUT = 1 mA, CIN = COUT = 0.1 F, unless otherwise noted.
R1518xxxxB/D (-KE)
Symbol
Item
VOUT
Output Voltage
VOUT
/IOUT
Load Regulation
VDIF Dropout Voltage
Conditions
Ta = 25°C
VSET ≤ 5.0 V
VSET > 5.0 V
−40°C ≤ Ta ≤ 125°C VSET ≤ 5.0 V
VSET > 5.0 V
VIN = VSET +2.0 V
1 mA ≤ IOUT ≤ 250 mA
VIN = VSET +2.0 V
1 mA ≤ IOUT ≤ 1 A
IOUT = 1 A
(−40 ≤ Ta ≤ 125C)
Min.
0.992
0.99
Typ.
Max.
1.008
1.01
Unit
V
V
0.982
1.018 V
0.98
1.02 V
−15 3
25 mV
−60 10 60 mV
Refer to the Product-specific
Electrical Characteristics
ISS Supply Current
IOUT = 0 mA
18 36 µA
Istandby
VOUT
/VIN
Standby Current
Line Regulation
VCE = 0 V
VSET +0.5 V ≤ VIN ≤ 36 V,
if VIN ≤ 3.5 V
ILIM Output Current Limit
VIN = VSET +2.0 V
ISC Short Current Limit
IPD CE Pull-down Current
VOUT = 0 V
VCE = 5 V
VCE = 36 V
VCEH CE Input Voltage "H"
VCEL
TTSD
TTSR
RLOW
CE Input Voltage "L"
Thermal Shutdown
Temperature
Thermal Shutdown
Released Temperature
Low Output Nch Tr. ON
Resistance (R1518xxxxD)
Junction Temperature
Junction Temperature
VIN = 14.0 V, VCE = 0 V
0.1 2.0 µA
0.01 0.02 %/V
1.1 1.8 2.5
A
110 180 250 mA
0.2 0.6 µA
0.5 1.3 µA
2.2 36 V
0 1.0 V
150 160
°C
125 135
1.0 3.2
5.0
°C
kΩ
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet R1518x.PDF ] | |
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