NJM2801 Data Sheet

NJM2801
Low Dropout Voltage Regulator with Reset
„ GENERAL DISCRIPTION
The NJM2801 is a low dropout voltage regulator with reset
function.
It provides up to 150mA of logic supply, and the reset
function monitors output voltage of the regulator with 1%
accuracy.
It is suitable for local power supply and reset for small micro
controller and other logic chips.
„ PACKAGE OUTLINE
NJM2801F
NJM2801U/U1
„ FEATURES
z Output Voltage Accuracy
Vo = ±1.0%
z Reset Voltage Accuracy
VRT = ±1.0%
z Adjust reset delay time with external capacitor.
z Ripple Rejection
60dB typ. (f=1kHz)
z Output Voltage Monitor type
z Open Collector Output
z Internal Short Circuit Current Limit
z Internal Thermal Overload Protection
z Bipolar Technology
z Package Outline
SOT89-5 (NJM2801U/U1), SOT-23-5(NJU2801F)
„ PIN CONFIGURATION
5
5
4
1.VIN
2.GND
3.VOR
4.Cd
1 2 3
5.VOUT
NJU2801F
1
2
4
1. VOUT
2.GND
3.Cd
4.VOR
2 3
5.VIN
NJU2801U/U1
„ EQUIVALENT CIRCUIT
VIN
VOUT
Thermal
Protection
VOR
Bandgap
Reference
GND
Cd
NJM2801
„ OUTPUT VOLTAGE/ DETECTION VOLTAGE
Device Name
Output Voltage Detection Voltage
NJM2801U1-/U/F3328
3.3V
2.8V
NJM2801U1-/U/F0543
5.0V
4.3V
„ ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage
VIN
Power Dissipation
Operating Temperature
Storage Temperature
PD
Topr
Tstg
(Ta=25°C)
RATINGS
UNIT
+14
V
350(*1)
SOT-23-5
mW
200(*2)
SOT89-5 350(*2)
−40∼+85
−40∼+125
°C
°C
(*1): Mounted on glass epoxy board based on EIA/JEDEC. (114.3x76.2x1.6mm: 2Layers)
(*2): Device itself.
„ ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.1µF, Co=1µF (Vo≤2.6V: Co=2.2µF) Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
Io=0mA
Quiescent Current
IQ
250
350
µA
−
Regulator Block
Io=30mA
Output Voltage
Vo
+1.0%
V
−1.0%
−
Vo-0.3V
Output Current
Io
150
200
mA
−
0.10 %/V
Line Regulation
∆Vo/∆VIN VIN=Vo+1V∼Vo+6V, Io=30mA
−
−
Load Regulation
∆Vo/∆Io Io=0∼100mA
0.03
%/mA
−
−
Io=60mA
Dropout Voltage
∆VI_O
0.10 0.18
V
−
ein=200mVrms, f=1kHz, Io=10mA,
Ripple Rejection
RR
60
dB
−
−
Vo=3V
Output Voltage
Ta=0∼85°C, Io=10mA
∆Vo/∆T
±50
−
− ppm/°C
Temperature
Coefficient
f=10Hz∼100kHz, Io=10mA, Vo=3V
Output Noise Voltage
VNO
45
µVrms
−
−
Reset Block
VIN=H→L
Voltage Detection
VRT
+1.0%
V
−1.0%
−
VIN=H→L→H
VRT×3 VRT×5 VRT×8
Hysteresis Voltage
VRTH
V
%
%
%
VIN=VRT-0.5V, RL=100kΩ
Low Level Output
RORL
100
300
mV
−
Voltage
VIN= VRT+0.5V
Output Leak Current
IORH
0.1
µA
−
−
VIN=VRT-0.5V, RL=0Ω
5
mA
On time Output Current
IORL
−
−
VIN=(VRT-0.5V)→ (VRT+0.5V),
Reset Output Delay
9
10
11
ms
td
Time
Cd=0.1µF
VORL=0.4V
Operation Voltage Limit
VOPL
0.9
V
−
−
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.
NJM2801
„ TIMING CHART
VIN[V]
VO
t
VO[V]
VO
VRTH
VRT
t
VOR[V]
VO
td
td
∗When the pull-up of the Vor is carried out to Vin through resistance.
td
t
NJM2801
„ TEST CIRCUIT
IQ
VIN
VO
IOR
NJM2801
RL
0.1µF
Cd
VIN
V
VOR
1.0µF*3 IOUT
GND
V
0.1µF
VOR
*3 Vo≤2.6V: Co=2.2µF (Ceramic)
„ TYPICAL APPLICATIONS
VIN
VIN
VO
NJM2801
VOUT
100kΩ
1.0µF*4
0.1µF
Cd
VOR
VOR
GND
0.1µF
*4 Vo≤2.6V: Co=2.2µF
„ POWER DISSIPATION vs. AMBIENT TEMPERATURE
NJM2801F Power Dissipation
(Topr=-40～+85℃,Tj=125℃)
Power Dissipation
500
400
On Board(114.3×76.2×1.6mm, FR-4)
300
Device itself
200
100
0
-50
-25
0
25
50
Ambient Temperature Ta(℃)
75
100
VOUT
NJM2801
„ ELECTRICAL CHARACTERISTICS
NJM2801_5.0V
Output Voltage vs. Input Voltage
5.2
@:Ta=25 C
Co=1µF(Ceramic)
5
5.1
Io=0A
Output Voltage : Vo(V)
Output Voltage : Vo (V)
NJM2801_5.0V
Output Voltage vs. Output Current
6
o
5
4.9
Io=30mA
4
3
2
4.8
1
Io=100mA
4.7
4.7
o
@:Ta=25 C
V IN=6V
Co=1µF(Ceramic)
0
4.8
4.9
5
5.1
5.2
5.3
5.4
0
50
100
NJM2801_5.0V
Ground Pin Current v.s. Output Current
20
200
250
300
NJM2801_5.0V
Dropout Voltage vs. Output Current
0.3
o
@:Ta=25 C
Co=1µF(Ceramic)
o
@:Ta=25 C
V IN=6V
Co=1µF(Ceramic)
0.25
15
Dropout Voltage:dVI-O (V)
Ground Pin Current : IGND (mA)
150
Output Current : Io(mA)
Input Voltage : V IN(V)
10
5
0.2
0.15
0.1
0.05
0
0
0
0
50
100
150
0
200
50
100
150
200
Output Current : I O(mA)
Output Current:Io(mA)
NJM2801_5.0V
Load Regulation vs. Output Current
NJM2801_5.0V
Peak Output Current vs. Input Voltage
300
-10
Peak Output Current : IoMAX(mA)
Load Regulation : dVo/dIo(mV)
250
-20
-30
-40
-50
-60
o
@:Ta=25 C
VIN=6V
Co=1µF(Ceramic)
-70
200
150
100
50
o
@:Ta=25 C
Co=1µF(Ceramic)
0
-80
0
50
100
Output Current : Io(mA)
150
200
6
7
8
9
10
11
Input Voltage : VIN(V)
12
13
14
NJM2801
„ ELECTRICAL CHARACTERISTICS
NJM2801_5.0V
Quiescent Current v.s. Input Voltage
NJM2801_5.0V
Output Noise Voltage vs. Output Current
100
2000
o
@:Ta=25 C
VIN=6.0V
LPF:100kHz
o
Output Noise Voltage : Vn(µ Vrms)
@:Ta=25 C
Output is open.
Co=1µF(Ceramic)
Quiescent Current : IQ (µ A)
1500
1000
500
5
10
60
Co=2.2µF(Ceramic)
40
20
0
0.001
0
0
Co=1µF(Ceramic)
80
15
0.01
0.1
Input Voltage : VIN(V)
NJM2801_5.0V
Ripple Rejection Ratio v.s. Frequency
80
80
Ripple Rejection : RR (dB)
Ripple Rejection Ratio : RR (dB)
100
90
90
Io=0mA
Io=10mA
70
60
50
Io=30mA
40
f=1kHz
70
60
50
f=10kHz
40
o
o
20
10
NJM2801_5.0V
Ripple Rejection vs. Output Current
100
100
30
1
Output Current : Io(mA)
@:Ta=25 C
V IN=6.0V
ein=200mVrms
Co=1µF(Ceramic)
10
100
30
1k
10k
@:Ta=25 C
VIN=6V
ein=200mVrms
Co=1µF(Ceramic)
20
0.001
100k
0.01
0.1
Frequency : f (Hz)
10
5.2
VIN=6V
Io=30mA
Co=1µF
@:VIN=6V
Io=60mA
Co=1µF(Ceramic)
0.25
100
NJM2801_5V
Output Voltage v.s Temperature
NJM2801_5V
Dropout Voltage v.s. Temperature
0.3
1
Output Current : Io(mA)
Output Voltage : Vo [V]
Dropout Voltage:dVI-O (V)
5.1
0.2
0.15
0.1
5
4.9
0.05
4.8
0
-50
0
50
100
o
Temperature : Ta ( C)
150
-50
0
50
100
o
Temperature : Ta [ C]
150
NJM2801
„ ELECTRICAL CHARACTERISTICS
NJM2801_5V
Quiescent Current v.s. Temperature
NJM2801_5V
Load Regulation v.s. Temperature
300
0.03
@:VIN=6V
Io=0-100mA
CL=1µF(Ceramic)
0.025
Load Regulation : dVo/dIo (%/mA)
Quiescent Current : IQ (µ A)
250
200
150
100
@:VIN=6V
Output is open.
Co=1µF(Ceramic)
50
0.02
0.015
0.01
0.005
0
0
-50
0
50
100
-50
150
0
50
NJM2801_5V
Short Circuit Current v.s. Temperature
100
0.1
@:VIN=6V
Output is short to ground.
Co=1µF(Ceramic)
80
Short Circuit Current : ISC (mA)
Line Regulation : dVo/dIo (%/V)
@:dVIN=6-11V
Io=30mA
Co=1µF(Ceramic)
0.05
0
-0.05
60
40
20
0
0
50
100
150
-50
o
0
50
100
Temperature : Ta ( C)
NJM2801_5V/4.3V
ON Output Current v.s Temperature
NJM2801_5V/4.3V
Output Leak Current v.s Temperature
100
VIN=4.8V
Co=1 µ F
Cd=0.1µF
RL=100k Ω
VIN=3.8V
Co=1µF
Cd=0.1µF
RL=0Ω
ON Output Curent : IORL(mA)
0.075
Output Leak Current : IORH(µ A)
150
o
Temperature : Ta ( C)
0.1
150
Temperature : Ta ( C)
NJM2801_5V
Line Regulation v.s. Temperature
-0.1
-50
100
o
o
Temperature : Ta ( C)
0.05
0.025
75
50
25
0
0
-50
0
50
100
o
Temperature : Ta( C)
150
-50
0
50
100
o
Temperature : Ta( C)
150
NJM2801
„ ELECTRICAL CHARACTERISTICS
NJM2801_5V/4.3V
Operation Voltage Limit v.s Temperature
NJM2801_5V/4.3V
Reset Output Delay Time v.s Temperature
1.5
20
VORL=0.4V
Co=1µF
Cd=0.1µF
Operation Voltage Limit : VOPL(V)
Reset Output Delay Time : td(ms)
VIN=3.8V->4.8V
Co=1µF
Cd=0.1µF
15
10
5
1
0.5
0
0
-50
0
50
100
-50
150
0
o
4.5
VIN=3.8V
Co=1µF
Cd=0.1µF
RL=100k Ω
VIN=H->L
Co=1µF
Cd=0.1µF
37.5
4.4
Voltage Detection : VRT(V)
Low Level Output Voltage : VORL(mV)
150
NJM2801_5V/4.3V
Voltage Detection v.s Temperature
25
12.5
4.3
4.2
4.1
0
-50
0
50
100
150
NJM2801_5V/4.3V
Hysteresis Voltage v.s Temperature
VIN=H->L->H
Co=1µF
Cd=0.1µF
300
200
100
0
-50
0
50
100
o
Temperature : Ta( C)
0
50
100
Temperature : Ta( C)
Temperature : Ta( C)
400
-50
o
o
Hysteresis Voltage : VRT(mV)
100
Temperature : Ta( C)
NJM2801_5V/4.3V
Low Level Output Voltage v.s Temperature
50
50
o
Temperature : Ta( C)
150
150
NJM2801
„ ELECTRICAL CHARACTERISTICS
NJM2801_5V
Load Transient Response
5.08
7
Input Voltage
5.06
6
5.04
5
Output Voltage
5.02
4
5
3
4.98
2
o
@:Ta=25 C
Io=30mA
Co=1µF(Ceramic)
4.96
4.94
0
40
80
120
Time : t [µ
µ S]
160
5.1
150
5.08
100
Output Current
5.06
50
5.04
0
Output Voltage
5.02
-50
5
-100
4.98
1
4.96
0
200
4.94
-150
o
@:Ta=25 C
VIN=6V
Co=1µF(Ceramic)
0
40
Output Current : Io [mA]
8
Output Voltage : Vo [V]
5.1
Input Voltage : VIN [V]
Output Voltage : Vo [V]
NJM2801_5V
Input Transient Response
-200
80
120
Time : t [µ
µS]
160
-250
200
[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.