NJRC NJM2893RB1-YLC 3output low dropout voltage regulator Datasheet

NJM2893
3OUTPUT LOW DROPOUT VOLTAGE REGULATOR
■GENRAL DESCRIPTION
The NJM2893 is a 3ch low dropout voltage regulator
with ON/OFF Control in TVSP-8 package.
It is suitable for camcorder, IC decoder, camera and
other portable items.
Preliminary
■PACKAGE OUTLINE
NJM2893RB1
■FEATURES
●High Ripple Rejection
70dB typ. at f=1kHz
●Low Noise
45µVrms typ.
●Output capacitor with 1.0µF ceramic capacitor at Vo≥2.7V
●Output Current
Io(max.)=100mA x 3ch
●High Precision Output
±1.0%
●Low Dropout Voltage
0.1V typ. at Io=60mA
●ON/OFF Control
●Internal Thermal Overload Protection
●Internal Short Circuit Current Limit
●Bipolar Technology
●Package Outline
TVSP-8
■PIN CONFIGURATION
8
7
6
5
1
2
3
4
NJM2893RB1
PIN FUNCTION
1. VOUT1
5. CONTROL3
2. VOUT2
6. CONTROL2
3. VOUT3
7. CONTROL1
4. GND
8. VIN
■EQUIVALENT CIRCUIT
VIN
VOUT1
CONTROL1
Thermal
Protection
Bandgap
Reference
VOUT2
CONTROL2
VOUT3
CONTROL3
GND
Ver.2003-03-11
-1-
NJM2893
Preliminary
■ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage
VIN
Control Voltage
VCONT
Power Dissipation
PD
Operating Temperature
Topr
Storage Temperature
Tstg
RATINGS
+14
+14(note1)
320
-40 to +85
-40 to+125
(Ta=25°C)
UNIT
V
V
mW
°C
°C
(note1)When input voltage is less than +14V, the absolute maximum control voltage is equal to the input voltage.
■ERECRICAL CHARACTERISTICS
(VIN=Vo+1V, CIN=0.1µF, Co=1.0µF: Vo≥2.7V (Co=2.2µF: Vo≤2.6V), Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
Output Voltage
Vo
Io=30mA
Quiescent Current1
IQ1
VCONT1= VIN, VCONT2= VCONT3= 0V
*1ch ON
Io=0mA, expect Icont
Quiescent Current2
IQ2
VCONT1= VCONT2= VIN, VCONT3= 0V
*2ch ON
Io=0mA, expect Icont
Quiescent Current3
IQ3
VCONT1= VCONT2= VCONT3= VIN
Io=0mA, expect Icont
Quiescent Current at
IQ(OFF)
VCONT=0V
Control OFF
Output Current
Io
Vo-0.3V
Line Regulation
∆Vo/∆VIN VIN=Vo+1V to Vo+6V, Io=30mA
Load Regulation
∆Vo/∆Io Io=0 to 60mA
Dropout Voltage
∆VI-O
Io=60mA
Ripple Rejection
RR
ein=200mVrms,f=1kHz,Io=10mA,
Vo=3V
Average Temperature
∆Vo/∆Ta Ta=0 to 85°C, Io=10mA
Coefficient of Output
Voltage
Output Noise Voltage
VNO
f=10Hz to 80kHz, Io=10mA, Vo=3V
Control Voltage for
VCONT(ON)
ON-state
Control Voltage for
VCONT(OFF)
OFF-state
MIN.
-1.0%
TYP.
-
MAX.
+1.0%
UNIT
V
-
140
220
µA
-
240
370
µA
-
340
520
µA
-
-
100
nA
100
-
130
0.10
0.10
0.03
0.18
mA
%/V
%/mA
V
-
70
-
dB
-
±50
-
ppm/°C
-
45
-
µVrms
1.6
-
-
V
-
-
0.6
V
(note2) Please confirm the specification separately because some parameters depend on output voltage.
■OUTPUT VOLTAGE RANK LIST
Device Name
CH1
NJM2893RB1-CCC
2.1V
NJM2893RB1-LLL
3.0V
NJM2893RB1-YLC
5.0V
-2-
VOUT
CH2
2.1V
3.0V
3.0V
CH3
2.1V
3.0V
2.1V
Ver.2003-03-11
NJM2893
Preliminary
■TEST CIRCUIT
A
IIN
VIN
VIN
0.1µF
A
ICONT
VOUT1
NJM2893
CONTROL1
ICONT2
IOUT1 V
1.0µF
or
2.2µF(Vo≤2.6V)
VOUT2
VOUT2
IOUT2 V
V VCONT1
A
VOUT1
1.0µF
or
2.2µF(Vo≤2.6V)
CONTROL2
VOUT3
VOUT3
IOUT3 V
V VCONT2
A
V VCONT3
Ver.2003-03-11
ICONT3
1.0µF
or
2.2µF(Vo≤2.6V)
CONTROL
GND
-3-
NJM2893
Preliminary
■TYPICAL APPLICATION
(1) In the case where ON/OFF Control is not required:
VIN
VIN
VOUT1
0.1µF
NJM2893
R1
(0~300kΩ)
R2
(0~300kΩ)
CONTROL
VOUT2
CONTROL
CONTROL
1.0µF
or
2.2μF(Vo≤2.6V)
VOUT2
1.0µF
or
2.2µF(Vo≤2.6V)
VOUT3
R3
(0~300kΩ)
VOUT1
VOUT3
1.0µF
or
2.2µF(Vo≤2.6V)
GND
Connect control terminal to VIN terminal
In case a resistance “R” is used, the quiescent current will be decreased. However, the but minimum operating
voltage will be increase as well. Please refer to a figure of Output Voltage vs. Control Voltage.
(2)In use of ON/OFF Control:
-4-
Ver.2003-03-11
NJM2893
VIN
VIN
VOUT1
NJM2893
0.1µF
R1
R2
VOUT1
1.0µF
or
2.2µF(Vo≤2.6V)
R3
CONTROL1 VOUT2
VOUT2
1.0µF
or
2.2µF(Vo≤2.6V)
CONTROL2
VOUT3
VOUT3
1.0µF
or
2.2µF(Vo≤2.6V)
CONTROL3
GND
In case the control terminal is “H”, the output is enabled.
The control terminal is ”L” or “open”, the output is disabled.
Ver.2003-03-11
-5-
NJM2893
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
-6-
Ver.2003-03-11
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