NJU7771/72/73/74/75/76
LOW DROPOUT VOLTAGE REGULATOR
!
GENERAL DESCRIPTION
NJU7771/72/73/74/75/76 is a low dropout voltage regulator
designed for cellular phone application etc.
Advanced CMOS technology achieves high ripple rejection
and low quiescent current.
When the ON/OFF control is used, NJU7774/75/76 has high
transition response characteristics for shunt switch.
!
FEATURES
"
High Ripple Rejection
65dB typ. (f=1kHz,Vo=3.0V version)
"
Low quiescent Current
Iq=18µA (Io=0mA)
"
Output capacitor with 1.0µF ceramic capacitor (Vo≤2.0V version)
"
Output Current
Io(max.)=150mA
"
High Precision Output
Vo±1.0%
0.15V typ. (Io=100mA,Vo=3.0V)
"
Low Dropout Voltage
"
Input Voltage Range
V
IN
=+2.3V∼14V(Vo≤2.0V version)
"
ON/OFF Control
(Active High)
"
With Shunt Switch
Only NJU7774/75/76
"
Internal Short Circuit Current Limit
"
Internal Thermal Overload Protection
"
CMOS Technology
"
Package Outline
SOT-23-5 (MTP5)
!
EQUIVALENT CIRCUIT
V
DD
Thermal
Protection
CONTROL
V
OUT
V
DD
Thermal
Protection
V
OUT
!
PACKAGE OUTLINE
NJU777*F
!
PIN CONFIGURATION
5
4
1 2 3
PIN FUNCTION
1.CONTROL
2.GND
3.NC
4.V
OUT
5.V
IN
NJU7771F
NJU7774F
1.V
IN
2.GND
3.CONTROL
4.NC
5.V
OUT
NJU7772F
NJU7775F
1.V
OUT
2.GND
3.V
IN
4.CONTROL
5.NC
NJU7773F
NJU7776F
CONTROL
Output
Control
Output
Control
Vref
V
SS
Current
Limit
V
SS
Vref
Current
Limit
NJM7771/72/73
!
OUTPUT VOLTAGE RANK LIST
Device Name
V
OUT
Device Name
1.5V
NJU777×F15
NJU777×F27
2.1V
NJU777×F21
NJU777×F28
2.2V
NJU777×F22
NJU777×F03
2.3V
NJU777×F23
NJU777×F33
2.5V
NJU777×F25
NJU777×F35
NJM7774/75/76
V
OUT
2.7V
2.8V
3.0V
3.3V
3.5V
Device Name
NJU777×F38
NJU777×F05
V
OUT
3.8V
5.0V
Ver.2004-01-19
-1-
NJU7771/72/73/74/75/76
!
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage
V
IN
Control Voltage
V
CONT
Power Dissipation
P
D
Operating Temperature
Topr
(Ta=25°C)
UNIT
V
V
mW
°C
RATINGS
+10
+10(*note 1)
200
−40 ∼
+85
Storage Temperature
Tstg
−40 ∼
+125
°C
OFF-state
10
mA
I
O
Output Sink Current(*note2)
(*note 1): When input voltage is less than +10V, the absolute maximum control
voltage is equal to the input voltage.
(*note 2):
This maximum rating is applied to NJU7774/75/76.
!
ELECTRICAL CHARACTERISTICS
(V
IN
=Vo+1V, C
IN
=0.1µF, Co=1.0µF(Co=2.2µF: Vo≤2.0V), Ta=25°C)
PARAMETER
Output Voltage
Input Voltage
Quiescent Current
Quiescent Current
at Control OFF
Output Current
Short Current Limit
Line Regulation
Load Regulation
Dropout Voltage(*note 3)
SYMBOL
Vo
V
IN
I
Q
I
Q(OFF)
Io
I
LIM
∆
Vo/∆ V
IN
∆
Vo/∆ Io
∆
V
I-O
TEST CONDITION
Io=30mA
Io=0mA, V
CONT
=V
IN
V
CONT
=0V
Vo-0.1V (Vo≤2.0V)
Vo-0.3V (Vo≥2.1V)
Vo=0V
V
IN
=Vo+1V
∼
Vo+6.0V (Vo<3.0V)
V
IN
=Vo+1V
∼
9.0V (Vo≥3.0V),
Io=30mA
Io=0
∼
100mA
Io=100mA, 2.1V≤Vo≤2.4V
Io=100mA, 2.5V≤Vo≤2.7V
Io=100mA, 2.8V≤Vo≤3.3V
Io=100mA, 3.4V≤Vo≤5.0V
ein=200mVrms,f=1kHz,Io=10mA,
Vo=3.0V Version
Ta=0
∼
85°C, Io=10mA
f=10Hz
∼
80kHz,Io=0mA,Vo=3.0V Version
f=10Hz
∼
80kHz,Io=10mA,Vo=3.0V Version
MIN.
-1.0%
2
−
−
150
30
−
−
−
−
−
−
−
−
−
−
2.5
1.6
0
MAX.
+1.0%
−
Vo+1V
9
18
35
0.1
−
50
−
−
0.2
0.18
0.15
0.12
65
±100
40
70
5
−
−
1
−
110
0.20
0.03
0.3
0.28
0.25
0.22
−
−
−
−
10
−
0.3
TYP.
UNIT
V
V
µA
µA
mA
mA
%/V
%/mA
V
V
V
V
dB
ppm/°C
µVrms
µVrms
MΩ
V
V
Ripple Rejection
Average Temperature
Coefficient of Output
Voltage
Output Noise Voltage
Pull-down Resistance
Control Voltage for
ON-state
Control Voltage for
OFF-state
RR
∆
Vo/∆ Ta
V
NO1
V
NO2
R
CONT
V
CONT(ON)
V
CONT(OFF)
(*note 3): Except output voltage less than 2.1V.
(*note 4): The above specification is a common specification for all output voltages.
Therefore, it may be different from the individual specification for a specific output voltage.
-2-
Ver.2004-01-19
NJU7771/72/73/74/75/76
!
TEST CIRCUIT
A
V
IN
I
IN
C
IN
0.1µF
V
IN
V
OUT
C
O
NJU777*
I
OUT
V
V
OUT
1.0µF(*1)
(ceramic capacitor)
A
V
V
CONT
I
CONT
CONTROL
GND
(*1) Vo≤2.0V version: Co=2.2µF(ceramic)
!
POWER DISSIPATION vs. AMBIENT TEMPERATURE
NJU777*F
(Topr= -40~+85°C,Tj=125°C,P
D
=200mW(Ta≤25°C))
500
Power Dissipation P
D
(mW)
400
300
On glass epoxy board. (30×30×1.6mm)
MTP5
200
100
0
-50
-25
0
25
50
75
100
Ambient Temperature Ta(°C)
Ver.2004-01-19
-3-
NJU7771/72/73/74/75/76
!
TYPICAL APPLICATION
1
In case that ON/OFF Control is not required:
V
IN
0.1µF
V
IN
V
OUT
V
OUT
1.0
µ
F
(*1)
(ceramic capacitor)
NJU777*
CONTROL
GND
(*1) Vo≤2.0V version: Co=2.2µF(ceramic)
Connect control terminal to V
IN
terminal.
2
In use of ON/OFF Control
V
IN
V
IN
V
OUT
V
OUT
1.0µF
(*1)
(ceramic capacitor)
0.1µF
NJU777*
CONTROL
GND
(*1) Vo
≤
2.0V version: Co=2.2
µ
F(ceramic)
State of control terminal:
●
“H”
→
output is enabled.
●
“L” or “open”
→
output is disabled.
-4-
Ver.2004-01-19
NJU7771/72/73/74/75/76
!
ELECTRICAL CHARACTERISTICS
NJU7771_3.0V
Dropout Voltage Characteristics
3.2
@:Ta=25 C
Co=1.0uF
(Ceramic)
o
3.5
NJU7771_3.0V
Over Current Protection Characteristics
3
3.1
2.5
Output Voltage: Vo(V)
Io=0A
3
Output Voltage: Vo(V)
2
2.9
Io=30mA
1.5
1
2.8
Io=100mA
2.7
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
0.5
@:Ta=25 C
0
0
50
100
150
200
250
300
o
Input Voltage: V
IN
(V)
Output Current: Io(mA)
NJU7771_3.0V
Circuit operating current vs.Output current
100
0.3
@:Ta=25
o
C
VIN=4.0V
Co=1.0uF
(Ceramic)
o
NJU7771_3.0V
Dropout Voltage vs.Output Current
@:Ta=25 C
Co=1.0uF
(Ceramic)
0.25
Circuit operating current: I
GND
(uA)
80
Dropout Voltage: dV
I-O
(V)
0.2
60
0.15
40
0.1
20
0.05
0
0
50
100
150
200
0
0
50
100
150
Output current: I
O
(mA)
Output Current: Io(mA)
6
NJU7771_3.0V
Output Voltage vs.Control Voltage
5
Output Voltage: Vo(V)
4
3
2
o
1
@:Ta=25 C
VIN=4.0V
Co=1.0uF
(Ceramic)
Io=30mA
0
0
0.5
1
1.5
2
2.5
3
Control Voltage: Vcont(V)
Ver.2004-01-19
-5-
综合技术交流
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
