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PDF RP114K Data sheet ( Hoja de datos )
| Número de pieza | RP114K | |
| Descripción | 300mA LDO REGULATOR | |
| Fabricantes | RICOH electronics | |
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Hay una vista previa y un enlace de descarga de RP114K (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
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RP114x SERIES
300mA LDO REGULATOR
NO. EA-236-141222
OUTLINE
The RP114x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply
current, low dropout, and high ripple rejection. Each of these voltage regulator ICs consists of a voltage reference
unit, an error amplifier, resistors for setting output voltage, a short current limit circuit, a chip enable circuit, and
so on.
RP114x features a minimum input voltage from 1.4V and the output voltage, which can be set from 0.8V to
3.6V (in 0.1V step). The output voltage of these ICs is internally fixed.
These ICs perform with low dropout voltage due to built-in transistor with low ON resistance. Low supply
current and a chip enable function prolong the battery life of each system. The ripple rejection, line transient
response and load transient response of the RP114x Series are excellent, thus these ICs are very suitable for
the power supply for hand-held communication equipment.
Since the packages for these ICs are DFN(PLP)1010-4, SC-88A, SOT-23-5, therefore high density mounting
of the ICs on boards is possible.
FEATURES
• Supply Current .............................................................Typ. 50µA
• Standby Current ...........................................................Typ. 0.1µA
• Input Voltage Range.....................................................1.4V to 5.25V
• Output Voltage Range..................................................0.8V to 3.6V (0.1V steps)
(For other voltages, please refer to Mark Specification Table).
• Output Voltage Accuracy..............................................±1.0% (VSET>2.0V, Topt=25°C)
• Temperature-Drift Coefficient of Output Voltage ..........Typ. ±80ppm/°C
• Dropout Voltage............................................................Typ. 0.25V (IOUT=300mA, VSET=2.8V)
• Ripple Rejection ...........................................................Typ. 75dB (f=1kHz)
• Line Regulation ............................................................Typ. 0.02%/V
• Packages ....................................................................DFN(PLP)1010-4, SC-88A, SOT-23-5
• Built-in Fold Back Protection Circuit.............................Typ. 60mA (Current at short mode)
• Ceramic capacitors are recommended to be used with this IC .... 1.0µF or more
APPLICATIONS
• Power source for portable communication equipment.
• Power source for electrical appliances such as cameras, VCRs and camcorders.
• Power source for battery-powered equipment.
1
1 page  
RP114x
NO. EA-236-141222
ELECTRICAL CHARACTERISTICS
• RP114x
VIN=VSET+1.0V (VSET > 1.5V), VIN=2.5V (VSET ≤ 1.5V), IOUT=1mA, CIN=COUT=1.0µF, unless otherwise noted.
VSET is Set Output Voltage.
The specifications in
are guaranteed by design engineering at -40ºC ≤ Ta ≤ 85ºC.
RP114xxxxB/D
Symbol
Item
Conditions
(Ta=25°C)
Min. Typ. Max. Unit
VOUT Output Voltage
Ta=25°C
-40°C ≤ Ta ≤ 85°C
VSET > 2.0V
VSET ≤ 2.0V
VSET > 2.0V
VSET ≤ 2.0V
×0.99
-20
×0.97
-60
×1.01
+20
×1.03
+60
V
mV
V
mV
IOUT Output Current
300 mA
∆VOUT
/∆IOUT
VDIF
Load Regulation
Dropout Voltage
1mA ≤ IOUT ≤ 300mA
15 40 mV
Please refer to Dropout Voltage shown on the next page.
ISS Supply Current
IOUT = 0mA
50 75 μA
Istandby Standby Current
VCE= 0V
0.1 1.0 μA
∆VOUT
/∆VIN
Line Regulation
RR Ripple Rejection
VIN Input Voltage*2
VSET+0.5V ≤ VIN ≤ 5.25V
(VIN ≥ 1.4V)
f=1kHz
Ripple 0.2Vp-p
VIN=VSET +1V
IOUT=30mA
(When VSET ≤ 2.0V, VIN=3.0V)
0.02 0.10 %/V
75 dB
1.4 5.25 V
∆VOUT
/∆Ta
Output Voltage
Temperature Coefficient
-40°C ≤ Ta ≤ 85°C
±80
ppm
/°C
ISC Short Current Limit
VOUT=0V
60 mA
IPD CE Pull-down Current
0.3 0.6 μA
VCEH CE Input Voltage “H”
1.0 V
VCEL
en
RLOW
CE Input Voltage “L”
Output Noise
LOW Output Nch On
Resistance
(D version only)
BW=10Hz to 100kHz
IOUT=30mA
VIN=4.0V
VCE=0V
0.4 V
75 μVrms
50 Ω
All test items listed under Electrical Characteristics are done under the pulse load condition (Tj≈Ta=25ºC) except for Output
Noise, Ripple Rejection, and Output Voltage Temperature Coefficient.
*2 The maximum input voltage listed under Electrical Characteristics is 5.25V. If, for any reason the input voltage exceeds
5.25V, it has to be no more than 5.5V with 500hrs of the total operating time.
5
5 Page 
RP114x
NO. EA-236-141222
Power Dissipation (SC-88A)
Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the
Measurement Conditions below.
Measurement Conditions
Environment
Board Material
Board Dimensions
Copper Ratio
Through-hole
Standard Land Pattern
Mounting on Board (Wind Velocity=0m/s)
Glass Cloth Epoxy Plastic (Double-sided)
40mm × 40mm × 1.6mm
Top-side: Approx. 50%, Back-side: Approx. 50%
φ0.5mm × 44pcs
Measurement Result
Power Dissipation
Thermal Resistance
Standard Land Pattern
380mW
θja＝(125-25°C)/0.38W＝263°C/W
θjc＝75°C/W
(Ta=25°C, Tjmax=125°C)
Free Air
150mW
θja＝(125-25°C)/0.15W＝667°C/W
-
Power Dissipation
Note: The above graph shows the power dissipation of the package based on Tjmax=125ºC and Tjmax=150ºC.
Operating the IC within the shaded area in the graph might have an influence on its lifetime.
Operating time must be within the time limit described in the table below.
Operating Time
13,000 hours
Estimated Years
(Operating 4 hrs/ day)
9 Years
11
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| PDF Descargar | [ Datasheet RP114K.PDF ] | |
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