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RP114K Datasheet Download - RICOH electronics

Номер произв RP114K
Описание 300mA LDO REGULATOR
Производители RICOH electronics
логотип RICOH electronics логотип 

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RP114K Даташит, Описание, Даташиты
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.
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RP114K Даташит, Описание, Даташиты
RP114x
NO. EA-236-141222
BLOCK DIAGRAMS
RP114xxxxB
VDD
Vref
Current Limit
CE
VOUT
VDD
GND CE
RP114xxxxD
Vref
Current Limit
VOUT
GND
SELECTION GUIDE
The set output voltage, the auto discharge function, and the package type for the ICs are user-selectable
options.
Product Name
Package
Quantity per Reel
Pb Free
RP114Kxx1(y)-TR
DFN(PLP)1010-4
10,000 pcs
Yes
RP114Qxx2(y)-TR-FE
SC-88A
3,000 pcs
Yes
RP114Nxx1(y)-TR-FE
SOT-23-5
3,000 pcs
Yes
xx: Specify the set output voltage within the range of 0.8 V (08) to 3.6 V (36) in 0.1 V step.
(y): If the output voltage includes the 3rd digit, indicate the digit of 0.01V.
(1.05 V, 1.15 V, 1.25 V, 1.35 V, 1.75 V, 1.85 V, 2.85 V, 3.45 V)
Ex. If the output voltage is 1.25V, RP114K1215-TR
If the output voltage is 1.85V, RP114K1815-TR
: Specify a combination of the CE pin polarity and the auto-discharge function.
(B) “H” Active, without Auto-Discharge function
(D) “H” Active, with Auto-Discharge function
Halogen Free
Yes
Yes
Yes
Auto-Discharge function quickly lowers the output voltage to 0V by releasing the electrical charge in the external capacitor
when the chip enable signal is switched from the active mode to the standby mode.
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RP114K Даташит, Описание, Даташиты
PIN DESCRIPTIONS
DFN(PLP)1010-4
Top View
43
Bottom View
34
12
21
SC-88A
54
(mark side)
123
RP114x
NO. EA-236-141222
SOT-23-5
54
(mark side)
123
DFN(PLP)1010-4
Pin No
1
2
3
4
Symbol
VOUT
GND
CE
VDD
Pin Description
Output Pin
Ground Pin
Chip Enable Pin ("H" Active)
Input Pin
) Tab is GND level. (They are connected to the reverse side of this IC.)
The tab is better to be connected to the GND, but leaving it open is also acceptable.
SC-88A
Pin No
1
2
3
4
5
Symbol
CE
NC
GND
VOUT
VDD
Pin Description
Chip Enable Pin ("H" Active)
No Connection
Ground Pin
Output Pin
Input Pin
SOT-23-5
Pin No
1
2
3
4
5
Symbol
VDD
GND
CE
NC
VOUT
Pin Description
Input Pin
Ground Pin
Chip Enable Pin ("H" Active)
No Connection
Output Pin
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