RP117x Series
100 mA Low Noise, High Ripple Rejection, Negative-voltage LDO Regulator
No. EA-379-181207
OVERVIEW
The RP117x is a negative voltage LDO regulator that provides high ripple rejection and low output noise. Adding only
one capacitor to each input and output pin can make a simple structure and high performance LDO regulator.
KEY BENEFITS
•
Provides high ripple rejection rate and low output noise, which is ideal for noise-sensitive devices.
•
Requires only one capacitor for each input and output pin, and is available in small DFN(PLP)1212-6 and SC-88A
packages, both of which can utilize the space on board.
KEY SPECIFICATIONS
TYPICAL APPLICATIONS
CE
0 V to 6 V
•
•
•
•
•
•
Input Voltage Range: −10.0 V to −2.5 V
Output Voltage Range: −5.5 V to −1.0 V
Output Current: 100 mA
Supply
Current: Typ. 75 μA
Ripple Rejection Rate: Typ. 80 dB, f = 1 kHz
Output Noise: Typ. 16
μVrms
(V
SET
=
−5.5
V to
−2.0
V)
V
IN
−10
V to
−2.5
V
C
IN
1.0 µF
GND
CE
GND
RP117x
C
OUT
2.2
μF
•
Protection Features: Thermal Shutdown Protection
Short-circuit Protection
VDD
VOUT
V
OUT
•
Auto-discharge Function
PACKAGE
SELECTION GUIDE
The set output voltage and the package type are user-
selectable options.
Product Name
RP117Kxx1D-TR
RP117Qxx2D-TR-FE
DFN(PLP)1212-6
1.20 x 1.20 x 0.4
(1)
(mm)
(1)
maximum dimension
SC-88A
2.0 x 2.1 x 0.9 (mm)
Package
DFN(PLP)1212-6
SC-88A
xx: Specify the set output voltage (V
SET
) within the range
of −5.5 V to −1.0 V in 0.1 V steps.
APPLICATIONS
•
•
•
•
Noise-sensitive Devices: Sensors, DACs, ADCs, Amplifiers
Audio Devices,
DSLRs
Measuring Instruments
Liquid Crystal Panels, Bias Power Supply for CCDs
1
RP117x
No. EA-379-181207
SELECTION GUIDE
The RP117x includes an auto-discharge function
( 1 )
. A set output voltage and a package type are user-
selectable options.
Selection Guide
Product Name
RP117Kxx1D-TR
RP117Qxx2D-TR-FE
Package
DFN(PLP)1212-6
SC-88A
Quantity per Real
5,000 pcs
3,000 pcs
Pb Free
Yes
Yes
Halogen Free
Yes
Yes
xx: Specify the set output voltage (V
SET
) within the range of −5.5 V to −1.0 V in 0.1 V steps.
The voltage in 0.05 V step is shown as follows:
Ex. -1.35 V: RP117x13xx5
BLOCK DIAGRAM
RP117x Block Diagram
(1)
Auto-discharge
function quickly lowers the output voltage to 0 V, when the chip enable signal is switched from the
active mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor.
2
RP117x
No. EA-379-181207
PIN DESCRIPTIONS
Top View
6
5
4
Bottom View
4
5
6
Top View
5
4
(mark side)
1
2
3
3
2
1
1
2
3
DFN(PLP)1212-6 Pin Configuration
DFN(PLP)1212-6 Pin Description
Pin No.
1
2
3
4
5
6
SC-88A Pin Description
Pin No.
1
2
3
4
5
Symbol
GND
VDD
VOUT
CE
NC
Ground Pin
Input Pin
Output Pin
Chip Enable Pin, Active-high
No Connection
Symbol
CE
NC
VDD
VOUT
NC
GND
No Connection
Input Pin
Output Pin
No Connection
Ground Pin
SC-88A Pin Configuration
Description
Chip Enable Pin, Active-high
Description
3
RP117x
No. EA-379-181207
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings
Symbol
V
IN
V
CE
V
OUT
I
OUT
P
D
Tj
Tstg
Input Voltage
CE Pin Voltage
VOUT Pin Voltage
Output Current
Power
Dissipation
(1)
DFN(PLP)1212-6 (JEDEC STD.51)
SC-88A (Standard Test Land Pattern)
Parameter
Rating
−11.0 to 0.3
−0.3 to 7.0
V
IN
− 0.3 to 0.3
220
450
380
−40 to 125
−55 to 125
Unit
V
V
V
mA
mW
mW
°C
°C
Junction Temperature
Storage Temperature Range
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent
damages and may degrade the life time and safety for both device and system using the device in the field. The
functional operation at or over these absolute maximum ratings is not assured.
RECOMMENDED OPERATING TEMPERATURE
Recommended Operating Conditions
Symbol
Parameter
V
IN
V
CE
Ta
Input Voltage
CE Pin Voltage
Operating Temperature
RECOMMENDED OPERATING CONDITIONS
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the recommended
operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. And
the semiconductor devices may receive serious damage when they continue to operate over the recommended
operating conditions.
Rating
−10.0 to −2.5
0 to 6.0
−40 to 85
Unit
V
V
°C
(1)
Please
refer to
POWER DISSIPATION
for detailed information.
4
RP117x
No. EA-379-181207
ELECTRICAL CHARACTERISTICS
V
IN
= V
SET
− 1.0 V (V
SET
> -1.5 V, V
IN
= -2.5 V), I
OUT
= 1 mA, C
IN
= 1.0 μF, C
OUT
= 2.2 μF, unless otherwise noted.
The specifications surrounded by
RP117x Electrical Characteristics
Symbol
V
OUT
I
OUT
V
OUT
/I
OUT
V
DIF
I
SS
I
STANDBY
V
OUT
/V
IN
RR
V
IN
V
OUT
/Ta
I
SC
R
CE
V
CEH
V
CEL
en
T
TSD
T
TSR
R
LOW
Parameter
Output Voltage
Output Current
Load Regulation
Dropout Voltage
Supply Current
Standby Current
Line Regulation
Ripple Rejection
Input Voltage
Output Voltage Temperature
Coefficient
Short Current Limit
CE Pull-down Resistance
CE Pin Input Voltage, high
CE Pin Input Voltage, low
Output Noise
Thermal Shutdown
Temperature Threshold,rising
Thermal Shutdown
Temperature Threshold,falling
are guaranteed by design engineering at −40°C ≤ Ta ≤ 85°C.
(Ta = 25C)
Test Conditions/Comments
Ta = 25C
Min.
x 1.020
x 1.050
100
Typ.
Max.
x 0.980
x 0.950
Unit
V
V
mA
−40°C
Ta
85°C
1 mA
I
OUT
100 mA
I
OUT
= 100 mA
I
OUT
= 0 mA
V
CE
= 0 V
−10.0 V ≤ V
IN
≤ V
SET
−0.5 V
(Up to −2.5 V)
f = 1 kHz, Ripple 0.2 Vp−p,
V
IN
= V
SET
− 1.0 V, I
OUT
= 30 mA
(V
SET
≥ −2.5 V, V
IN
= −3.5 V)
−10.0
−40°C
Ta
85°C
V
OUT
= 0 V
V
IN
= −5 V, V
CE
= 3 V
1.5
−0.30
10
30
mV
Refer to
PRODUCT-SPECIFIC
ELECTRICAL CHARACTERISTICS
75
0.01
150
0.15
0.30
µA
µA
%/V
dB
80
−2.5
±100
150
5
V
ppm
/°C
mA
MΩ
V
0.5
BW = 10 Hz to
100 kHz, I
OUT
=
30 mA
V
SET
> −2.0 V
V
SET
−2.0 V
44 − 13
x |V
SET
|
16
165
110
250
V
µVrms
°C
°C
Ω
Junction Temperature
Junction Temperature
V
IN
= −4.0 V, V
CE
= 0 V
Auto-discharge PMOS
On Resistance
All test items listed under
Electrical Characteristics
are done under the pulse load condition (Tj ≈ Ta = 25°C) except Output
Voltage Temperature Coefficient, Output Noise and Ripple Rejection.
5
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