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Datasheet: R1113Z241A-TR (RICOH electronics devices division)

 

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RICOH electronics devices division
'2003.6.12
LOW NOISE 150mA LDO REGULATOR
R1113Z SERIES
Rev. 1.15
- 1 -
I
OUTLINE
The R1113Z 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, resistors,
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 R1113Z 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 package for these ICs is WL-CSP (Wafer Level CSP),
high density mounting of the ICs on boards is possible.
I
FEATURES
Ultra-Low Supply Current......................................... Typ. 100
A
Standby Mode ........................................................... Typ. 0.1
A
Low Dropout Voltage ................................................ Typ. 0.23V(I
OUT
=100mA 3.0V Output type)
High Ripple Rejection ............................................... Typ. 80dB(f=1kHz 3.0V Output type)
Low Temperature-Drift Coefficient of Output Voltage Typ. 100ppm/
C
Excellent Line Regulation ......................................... Typ. 0.05%/V
High Output Voltage Accuracy.................................. 2.0%
Excellent Dynamic Response
Small Package ..........................................................WL-CSP(Wafer Level CSP)
Output Voltage...........................................................Stepwise setting with a step of 0.1V in the range of 1.5V to 5.0V is
possible.
Built-in Chip Enable Circuit ( 2 types; A: active low , B: active high)
Built-in Fold Back Protection Circuit........................Typ. 30mA (Current at short mode)
Ceramic capacitors are recommended to be used with this IC
I
APPLICATIONS
Power source for cellular phones such as GSM, CDMA and various kinds of PCS.
Power source for electrical appliances such as cameras, VCRs and camcorders.
Power source for battery-powered equipment.
Rev. 1.15
- 2 -
I
BLOCK DIAGRAM
R1113ZXX1A
R1113ZXX1B
V
DD
V
OUT
GND
3
4
1
2
Vref
+
-
CE
Current Limit
V
DD
V
OUT
GND
3
4
1
2
Vref
+
-
CE
Current Limit
I
SELECTION GUIDE
The output voltage, the active type, the packing type, and the taping type for the ICs can be selected at the user's request. The
selection can be made with designating the part number as shown below;
R1113XXX1X-XX
Part Number

a b c d
Code
Contents
a
Designation of Package Type :
Z:WL-CSP(Wafer Level CSP)
b
Setting Output Voltage (V
OUT
) :
Stepwise setting with a step of 0.1V in the range of 1.5V to 5.0V is possible.
c
Designation of Active Type :
A : active low type
B : active high type
d
Designation of Taping Type :
Ex. TR, TL (refer to Taping Specifications; TR type is the standard direction.)
I
PIN CONFIGURATION
WL-CSP 4Pin
Bottom View
Top View
4 CE
3 V
DD
2 V
OUT
1 GND
3
4
1
2
Rev. 1.15
- 3 -
I
PIN DESCRIPTION
Pin No.
Symbol
Description
1
GND
Ground Pin
2
V
OUT
Output pin
3
V
DD
Input Pin
4
CE or CE
Chip Enable Pin
I
ABSOLUTE MAXIMUM RATINGS
Item
Symbol
Rating
Unit
Input Voltage
V
IN
7.0
V
Input Voltage( CE or CE Pin)
V
CE
-0.3 ~ V
IN
+0.3
V
Output Voltage
V
OUT
-0.3 ~ V
IN
+0.3
V
Output Current
I
OUT
200
mA
Power Dissipation
P
D
190
mW
Operating Temperature Range
Topt
-40 ~ 85
C
Storage Temperature Range
Tstg
-55 ~ 125
C
I
ELECTRICAL CHARACTERISTICS
G R1113ZXX1A
Topt=25
C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit
V
OUT
Output Voltage
V
IN
= Set V
OUT
+1V
1mA
I
OUT
30mA
V
OUT
0.98
V
OUT
1.02
V
I
OUT
Output Current
V
IN
- V
OUT
= 1.0V
150
mA
V
OUT
/
I
OUT
Load Regulation
V
IN
= Set V
OUT
+1V
1mA
I
OUT
80mA
20
45
mV
V
DIF
Dropout Voltage
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT
VOLTAGE
I
SS
Supply Current
V
IN
= Set V
OUT
+1V
100
170
A
Istandby
Supply Current (Standby)
V
IN
= V
CE
= Set V
OUT
+1V
0.1
1.0
A
V
OUT
/
V
IN
Line Regulation
Set V
OUT
+0.5V
V
IN
6V
I
OUT
= 30mA
0.05
0.20
%/V
RR
Ripple Rejection
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT
VOLTAGE
V
IN
Input Voltage
2.0
6.0
V
V
OUT
/
T
Output Voltage
Temperature Coefficient
I
OUT
= 30mA
-40
C Topt 85C
100
ppm
/
C
Ilim
Short Current Limit
V
OUT
= 0V
30
mA
R
PU
CE Pull-up Resistance
2.5
5
10
M
V
CEH
CE Input Voltage "H"
1.5
V
IN
V
V
CEL
CE Input Voltage "L"
0
0.25
V
e
n
Output Noise
BW=10Hz to 100kHz
30
Vrms
Rev. 1.15
- 4 -
G R1113ZXX1B
Topt=25
C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit
V
OUT
Output Voltage
V
IN
= Set V
OUT
+1V
1mA
I
OUT
30mA
V
OUT
0.98
V
OUT
1.02
V
I
OUT
Output Current
V
IN
- V
OUT
= 1.0V
150
mA
V
OUT
/
I
OUT
Load Regulation
V
IN
= Set V
OUT
+1V
1mA
I
OUT
80mA
20
45
mV
V
DIF
Dropout Voltage
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT
VOLTAGE
I
SS
Supply Current
V
IN
= Set V
OUT
+1V
100
170
A
Istandby
Supply Current (Standby)
V
IN
= Set V
OUT
+1V
V
CE
=GND
0.1
1.0
A
V
OUT
/
V
IN
Line Regulation
Set V
OUT
+0.5V
V
IN
6V
I
OUT
= 30mA
0.05
0.20
%/V
RR
Ripple Rejection
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT
VOLTAGE
V
IN
Input Voltage
2.0
6.0
V
V
OUT
/
T
Output Voltage
Temperature Coefficient
I
OUT
= 30mA
-40
C Top t 85C
100
ppm
/
C
Ilim
Short Current Limit
V
OUT
= 0V
30
mA
R
PD
CE Pull-down Resistance
2.5
5
10
M
V
CEH
CE Input Voltage "H"
1.5
V
IN
V
V
CEL
CE Input Voltage "L"
0
0.25
V
e
n
Output Noise
BW=10Hz to 100kHz
30
Vrms
G ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
Topt = 25
C
Dropout Voltage
V
DIF
(V)
Output Voltage
V
OUT
(V)
Condition
Typ.
Max.
1.5
0.50
0.70
1.6
0.45
0.65
1.7
0.40
0.60
1.8
0.34
0.55
1.9
0.28
0.44
2.0
V
OUT
2.3
0.25
0.35
2.4
V
OUT
2.7
0.24
0.29
2.8
V
OUT
5.0
I
OUT
= 100mA
0.23
0.26
Topt = 25
C
Ripple Rejection
RR (dB)
Output Voltage
V
OUT
(V)
Condition
Typ.
Max.
1.5
V
OUT
4.0
80
4.1
V
OUT
5.0
f = 1kHz, Ripple 0.5Vp-p
V
IN
= Set V
OUT
+1V
70
Rev. 1.15
- 5 -
I
OPERATION
R1113ZXX1A
R1113ZXX1B
V
DD
V
OUT
GND
3
4
1
2
Vref
+
-
CE
Current Limit
R1
R2
V
DD
V
OUT
GND
3
4
1
2
Vref
+
-
CE
Current Limit
R1
R2
In these ICs, fluctuation of output voltage, V
OUT
is detected by feedback registers R1, R2, and the result is compared with a
reference voltage by the error amplifier, so that a constant voltage is output. A current limit circuit for protection in short mode
and a chip enable circuit, are included.
I
TECHNICAL NOTES
When using these ICs, consider the following points:
Phase Compensation
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For this purpose, use
a capacitor C
OUT
with good frequency characteristics and ESR (Equivalent Series Resistance).
We use Ceramic Capacitors for evaluation of these ICs.
Recommended Capacitors; GRM40X5R225K6.3 (Murata)
GRM40-034X5R335K6.3 (Murata)
GRM40-034X5R475K6.3 (Murata)
(Note: When the additional ceramic capacitors are connected to the output pin with an output capacitor for phase
compensation, the operation might be unstable. Because of this, test these ICs with as same external components as ones to be
used on the PCB.)
PCB Layout
Make V
DD
and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result. Connect a
capacitor with a capacitance value as much as 2.2
F or more between VDD and GND pin, and as close as possible to the pins.
Set external components, especially the output capacitor, as close as possible to the ICs, and make wiring as short as possible.
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