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PDF RP104 Data sheet ( Hoja de datos )
| Número de pieza | RP104 | |
| Descripción | 150mA LDO REGULATOR | |
| Fabricantes | RICOH electronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RP104 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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150mA LDO REGULATOR
RP104 SERIES
Preliminary
OUTLINE
The RP104 Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low
supply current, low ON-resistance, and high ripple rejection. Each of these ICs consists of a voltage reference
unit, an error amplifier, resistor-net for voltage setting, a current limit circuit, and a chip enable circuit.
These ICs perform with low dropout voltage and a chip enable function. The line transient response and load
transient response of the RP104 Series are excellent, thus these ICs are very suitable for the power supply for
hand-held communication equipment.
The output voltage of these ICs is fixed with high accuracy. Since the packages for these ICs are PLP1010-4 ,
SOT-23-5 and SC-82AB,therefore high density mounting of the ICs on boards is possible.
FEATURES
• Low Supply Current.............................................................. Typ. 1µA
(Except the current through CE pull down circuit)
• Standby Mode ......................................................................Typ. 0.1µA
• Low Dropout Voltage ............................................................Typ. 0.28V (IOUT=150mA 2.5V Output type)
• Low Temperature-Drift Coefficient of Output Voltage
Typ. ±40ppm/°C
• Good Line Regulation...........................................................Typ. 0.05%/V
• High Output Voltage Accuracy..............................................±1.0%
• Small Packages ..................................................................PLP1010-4, SOT-23-5, SC-82AB
• Output Voltage......................................................................1.2V, 1.3V,1.5V, 1.8V, 1.85V, 1.9V, 2.0V, 2.5V,
2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.3V
• Built-in Fold Back Protection Circuit.....................................Typ. 40mA (Current at short mode)
• Ceramic capacitors are recommended to be used with this IC CIN=COUT=0.1µF 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.
Confidential
Rev. 0.5
1
1 page  
PIN DESCRIPTIONS
• RP104K
Pin No.
Symbol
Description
1
VOUT
Output Pin
2
GND
Ground Pin
3
CE or NC
Chip Enable Pin (“H” Active) or No Connection
4 VDD Input Pin
Tab is GND level. (They are connected to the reverse side of this IC.)
Do not connect to other wires or land patterns.
• RP104N
Pin No.
1
2
3
4
5
Symbol
VDD
GND
CE or NC
NC
VOUT
Description
Input Pin
Ground Pin
Chip Enable Pin (“H” Active) or No Connection
No Connection
Output Pin
• RP104Q
Pin No.
1
2
3
4
Symbol
CE or NC
GND
VOUT
VDD
Description
Chip Enable Pin (“H” Active)
Ground Pin
Output Pin
Input Pin
RP104
Confidential
Rev 0.5
5
5 Page 
RP104
POWER DISSIPATION (SC-82AB)
This specification is at mounted on board. Power Dissipation (PD) depends on conditions of mounting on
board. This specification is based on the measurement at the condition 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 plactic (Double sided)
40mm × 40mm × 1.6mm
Top side : Approx. 50% , Back side : Approx. 50%
φ0.5mm × 44pcs
Measurement Result
Power Dissipation
Thermal Resistance
(Topt=25°C,Tjmax=125°C)
Standard Land Pattern
Free Air
380mW
150mW
θja=(125−25°C)/0.38W=263°C/W
667°C/W
600
500
400 380
On Board
300
200 150
100
Free Air
0
0 25 50 75 85 100 125
Ambient Temperature (°C)
Power Dissipation
150
40
Measurement Board Pattern
IC Mount Area (Unit : mm)
Confidential
Rev 0.5
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet RP104.PDF ] | |
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