NJM2861/62
-1-
Ver.2006-02-20
LOW DROPOUT VOLTAGE REGULATOR
! GENERAL DESCRI PTION ! PACKAGE OUTLINE
The NJM2861/62 is a low dropout voltage regulator .
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
! FEATURES
" High Ripple Rejection 70dB typ. (f=1kHz,V o=3V V ersion)
" Output Noise V oltage Vno=30µV r ms typ. (Cp =0.0 1µF)
" Output capacitor with 1.0uF ceramic capacitor (V o≥2. 7V)
" Output Current Io(max.)=100mA
" High Precision Output V o±1%
" Low Dropout V oltage 0.10V typ. (Io=60mA)
" ON/OFF Control (Active High)
" Internal Short Circuit Current Limit
" Internal Thermal Overload Protection
" Bipolar Technology
" Package Outline SOT -23-5
! PIN CONFIGURA TION
NJM2861F NJM2862F
! EQUIVALENT CI RCUIT
V
OUT
GND
V
IN
Thermal
Protection
Bandgap
Reference Noise
Bypass
Cont
NJM2861F/62F
1. CONTROL (Active High
)
2. G ND
3. NOISE BYPASS
4. V
OUT
5. V
IN
1.V
IN
2.GND
3.CONTROL (Act ive High)
4.NOISE BYPASS
5.V
OUT
1
2
3
4
5
12 3
45
NJM2861/62
- 2 -
Ver.2006-02-20
! OUTPUT VOL TAGE RANK LIST
Device Name V
OUT
Device Name V
OUT
Device Name V
OUT
NJM286×F21 2.1V NJM286×F285 2.85V NJM286×F38 3.8 V
NJM286×F25 2.5V NJM286×F03 3.0 V NJM286×F04 4.0 V
NJM286×F26 2.6V NJM286×F31 3.1 V NJM286×F46 4.6 V
NJM286×F27 2.7V NJM286×F33 3.3 V NJM286×F47 4.7 V
NJM286×F28 2.8V NJM286×F35 3.5 V NJM286×F05 5.0 V
! ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER SYMBOL RATINGS UNIT
Input V oltage V
IN
+14 V
Control V oltage V
CONT
+14(*1) V
350(*2)
Power Dissipation P
D
SOT-23-5 200(*3) mW
Operating Temperature Topr −40 ∼ +85 °C
Storage Temperature Tstg −40 ∼ +125 °C
(*1):When input volt age is less than +14V, the absolute maximum control voltage is equal to the input volt age.
(*2): Mounted on glass epoxy board based on EIA/JEDEC. (114.3x76.2x1.6mm: 2Layers)
(*3): Device itself
! ELECTRICAL CHARA CTERISTICS
(V
IN
=V o+1V, C
IN
=0.1µF, Co=1.0µF: V o≥2.7V (Co=2.2µF: V o≤2.6V), Cp=0.01µF, Ta=25°C)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Output V oltage V o Io=30mA -1% − +1% V
Quiescent Current I
Q
Io=0mA, expect Icont − 120 180 µA
Quiescent Current
at Control OFF I
Q(OFF)
V
CONT
=0V − − 100 nA
Output Current Io Vo−0.3V 100 130 - mA
Line Regulation ∆Vo/∆V
IN
V
IN
=V o+1V ∼ V o+6V , Io=30mA − − 0.10 %/V
Load Regulation ∆Vo/∆Io Io=0 ∼ 60mA − − 0.03 %/mA
Dropout V oltage ∆V
I−O
Io=60mA − 0.10 0.18 V
Ripple Rejection RR ein=200mVr ms,f=1kHz, Io=10mA
V
IN
=V o+1V , Vo=3V V ersion − 70 − dB
Average Temperature
Coefficient of Output V oltage ∆Vo/∆Ta Ta=0∼85°C, Io=10mA − ±50 − ppm/°C
Output Noise V oltage V
NO
f=10Hz∼80kHz, Io=10mA,
Vo=3V Version − 30 − µVrms
Control V oltage for O N-state V
CONT(ON)
1.6 − − V
Control V oltage for O FF-state V
CONT(OFF)
− − 0.6 V
The above specification is a common specification for all output volt ages.
Therefore, it may be different from the individual specification for a specific output voltage.
NJM2861/62
-
3
-
Ver.2006-02-20
! TEST CIRCUIT
NJM2861/62
V
IN
V
IN
V
OUT
CONTROL NOISE
BYPASS
GND
0.1µF
I
IN
I
CONT
V
CONT
Cp=0.01µF
I
OUT
V
OUT
V
V
A
A
1.0µF
*4
(ceramic
*4 Vo≤2.6V v ersion: Co=2.2µF(ceramic)
NJM2861/62
- 4 -
Ver.2006-02-20
! TYPICAL APPLICA TION
1 In case that ON/OFF Con trol is not required:
NJM2861/62
VIN VOUT
CONTROL NOISE
BYPASS
GND
0.1µF
Cp=0.01µF
VOUT
VIN
R
(0~300kΩ)
1.0µF *5
*5 Vo≤2.6V version: Co=2.2µF
Connect control terminal to V
IN
terminal
2 In use of ON/OFF CONTRO L:
NJM2861/62
V
IN
V
OUT
CONTROL NOISE
BYPASS
GND
0.1µF
Cp=0.01µF
V
OUT
V
IN
R
1.0µF
*5
*5 Vo≤2.6V ve rsion: Co=2.2µF
S tate of control terminal:
•“H”→ out put is enabled.
• “L” or “open” → output is disabled.
%Noise bypass Capacitance Cp
Noise bypass capacitance Cp reduces noise generated by band-gap reference circuit. Noise level and ripple
rejection will be improved when larger Cp is used. Use of smaller Cp value may cause oscillation.
Use th e Cp value of 0. 01µF greater to avoid the problem.
%In the case of using a resistance "R" between V
IN
and control.
The current flow into the control terminal while the IC is ON state (I
CONT
) can be reduced when a pull up resistance
"R" is inserted between V
IN
and the control terminal.
The minimum control voltage for ON state (V
CONT (ON)
) is increased due to the voltage drop caused by I
CONT
and the
resistance "R". The I
CONT
is temperature dependence as shown in the "Control Current vs. Temperature"
characteristics. Therefore, the resistance "R" should be carefully selected to ensure the control voltage exceeds the
V
CON T (ON)
over the required temperature range.
NJM2861/62
-
5
-
Ver.2006-02-20
! PO WER DISSIPATION vs. AMBIENT TEMPE RA TURE
NJM2861/62F Power Di ssipat ion
(Topr=-40～+85℃,Tj=125℃,P
D
=200mW(Ta≦25℃))
0
100
200
300
400
500
-50 -25 0 25 50 75 100
Ambient Temperature Ta(℃)
P
ower
Di
ss
i
pat
i
on
P
D
(
m
W)
Device itself
On Board(114.3×76.2×1.6mm, FR -4)
NJM2861/62
-
6
-
Ver.2006-02-20
! ELECTRICAL CHARA CTERISTICS
2.7
2.8
2.9
3
3.1
3.2
2.7 2.8 2.9 3 3.1 3.2 3.3 3.4
Out pu t Vol tag e : Vo(V)
Input Voltage : V
IN
(V)
NJM2861/62_3.0V
O utput Volt age vs. I nput Vo ltag e
@:Ta=25
o
C
Co=1µF
(Ceramic)
Cp=0.01uF
Io=0A
Io=30mA
Io=80mA
0
0.5
1
1.5
2
2.5
3
3.5
4
0 50 100 150 200
Output Voltage : Vo(V )
NJM2861/62_3.0V
O ut pu t Voltage vs. Output Current
@:Ta=25
o
C
V
IN
=4V
Co=1µF
(Ceramic)
Cp=0.01mF
Output Current : Io(mA)
0
5
10
15
20
0 20 40 60 80 100 120
Ground Pin Current : I
GND
(mA)
NJM2861/62_3.0V
Ground Pin Current vs. Output Current
@:Ta=25
o
C
V
IN
=4V
Co=1µF
(Ceramic)
Cp=0.01mF
Output Current : I
O
(mA)
0
0.05
0.1
0.15
0.2
0.25
0.3
0 20406080100120
Output Current : Io(mA)
@:Ta=25
o
C
Co=1µF(Ceramic)
Cp=0.01 mF
Dropout Voltage : dV
I-O
(V)
NJM2861/62_3.0V
Dro pout V oltage vs. Output C u r ren t
0
5
10
15
20
25
30
0 0.5 1 1.5 2 2.5 3 3.5 4
Control Current : Icont( µ
µ
µ
µA)
Control Voltage : Vcont(V)
NJM2861/62_3.0V
Control Current vs . Control V oltage
@:Ta=25
o
C
V
IN
=4V
Co=1µF
(Ceramic)
Cp=0.01 µF
Io=30mA
Rc=0Ω
Rc=100kΩ
Rc=50kΩ
0
0.5
1
1.5
2
2.5
3
3.5
4
00.511.522.53
Rc=0Ω
Output Voltag e : Vo (V )
Control Voltage : Vcont(V)
NJM2861/62_3.0V
O utpu t Voltag e vs. Con t r o l V oltag e
@:Ta=25
o
C
V
IN
=4V
Co=1µF
(Ceramic)
Cp=0.01µF
Io=30mA
Rc=100kΩ
Rc=50kΩ
NJM2861/62
-7-
Ver.2006-02-20
! ELECTRICAL CHARA CTERISTICS
-80
-70
-60
-50
-40
-30
-20
-10
0
0 50 100 150
Load Regu lation : dVo/dIo (mV)
Output Current : Io(mA)
NJM2861/62_3.0V
Load Regulation v s. Output Current
@:Ta=25
o
C
V
IN
=4V
Co=1µF(Ceramic)
Cp=0.01 µF
0
50
100
150
200
4 6 8 101214
Peak Out put Curr ent : I o
MAX
(mA)
NJM2861/62_3.0V
Peak Ou tput Curre nt vs. Input Volt age
@:Ta=25
o
C
Co=1µF(Ceramic)
Cp=0.01µF
Inpu t Voltage : V
IN
(V)
0
500
1000
1500
2000
0 5 10 15
Q uiesc en t Cur rent : I
Q
( µ
µ
µ
µA)
NJM2861/62_3.0V
Quiescent Current vs. Input Voltage
@:Ta=25
o
C
Outpu t is open.
Co=1µF(Ceramic)
Cp=0.01µF
i ncluding Icont
Inpu t Voltage : V
IN
(V)
0
20
40
60
80
100
0.001 0.01 0.1 1 10 100
Output Current : Io(mA)
Outpu t N oise Voltage : Vn (
µ
µ
µ
µ
Vrms)
NJM2861/62_3.0V
O utpu t Noise Volt age vs. Ou tput Current
Co=2.2µF(Ceramic)
@:Ta=25
o
C
V
IN
=4.0V
Cp=0.01µF
LPF:100kHz
Co=1µF(Ceramic)
20
30
40
50
60
70
80
90
100
Ripple Reject ion Ratio : RR (dB)
Frequ e ncy : f (Hz)
NJM2861/62_3.0V
Ri pple Rejec tio n Rat i o vs. Fr eq ue ncy
Io=0mA
Io=10mA
Io=30mA
@:Ta=25
o
C
V
IN
=4.0V
ein=200mVrms
Co=1µF(Ceramic)
Cp=0.01 µF
10 100 1k 10k 100k
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1 1 10 100
Output Current : Io(mA)
Rip ple Reject io n : RR (d B)
NJM2861/62_3.0V
Ripp le Rejection vs. Output Cu rrent
f=1kHz
f=10kHz
@:Ta=25
o
C
V
IN
=4V
ein=200mVrms
Co=1µF(Ceramic)
Cp=0.01µF
NJM2861/62
-
8
-
Ver.2006-02-20
! ELECTRICAL CHARA CTERISTICS
0.1
1
10
100
1µ10µ100µ1m 10m 100m
0.02
Output Current : Io (mA)
@:Ta=25
o
C
Co=1µF(Ceramic)
Cp=0.01µF
Eq uiva lent Serise Resista nce : ESR(
Ω
Ω
Ω
Ω
)
NJM2861/62_3.0V
Equivalent Serise Resista nce vs. Ou t put Current
Oscillatio n Free
0
0.05
0.1
0.15
0.2
0.25
0.3
-50 0 50 100 150
Ambient Temperature : Ta (
o
C)
@:V
IN
=4V
Io=60mA
Co=1µF(Ceramic)
Cp=0.01 µF
NJM2861/62_3.0V
Dro pout Vo l tage vs . Ambi e n t T em p erat u r e
Drop out Voltage : dV
I-O
(V)
2.9
2.95
3
3.05
3.1
-50 0 50 100 150
Out pu t Vo ltage Vo (V)
Ambient Temperature Ta (
o
C)
NJM2861/62_3.0V
Output Vo ltage vs. Amb i ent T emperat ure
@:V
IN
=4V
Io=30mA
Co=1µF(Ceramic)
Cp= 0.01µF
0
0.5
1
1.5
2
-50 0 50 100 150
Control Voltage : V
CONT(ON)
(V )
Amb ient Temperatu re : Ta (
o
C)
NJM2861/62_3.0V
Co ntrol Voltag e vs. Ambient Temperatu re
@:V
IN
=4V
Io=30mA
Co=1µF(Ceramic)
Cp=0.01µF
0
2
4
6
8
10
-50 0 50 100
Control Current : I
CONT
( µ
µ
µ
µA)
Temperatu re Ta (
o
C)
NJM2861/62_3.0V
Control Current v.s. Ambient Temperature
@:V
IN
=4V
Outpu t is open.
Co= 1µF(Ceramic)
Cp=0.01µF
V
CONT
=1.6V
NJM2861/62
-
9
-
Ver.2006-02-20
! ELECTRICAL CHARA CTERISTICS
0
50
100
150
200
-50 0 50 100 150
Q uiesc en t Cur rent : I
Q
(
µ
µ
µ
µ
A)
Amb ient Temperatu re : Ta (
o
C)
NJM2861/62_3.0V
Quiescent Current vs. Ambient Temp erature
@:V
IN
=4V
Out put is open.
Co=1µF(Ceramic)
Cp=0.01 µF
0
50
100
150
200
-50 0 50 100 150
Sho rt Circu it Curr ent : I
SC
(mA)
Tem perature : Ta (
o
C)
NJM2861/62_3.0V
Shor t Circuit Cur r e nt v.s . Tem pe rat ur e
@:V
IN
=4V
Out put is s hort to ground.
Co=1µF(Ceramic)
Cp=0.01µF
-0.1
-0.05
0
0.05
0.1
-50 0 50 100 150
Line Regulatio n : dVo/dI o (%/V )
Tem perature : Ta (oC)
NJM2861/62_3.0V
Li ne Regu l ation v. s. Te mpe ratu re
@:dV
IN
=4-9V
Io= 30mA
Co= 1µF(Ceramic)
Cp= 0.01µF
0
0.005
0.01
0.015
0.02
0.025
0.03
-50 0 50 100 150
Load Regu lation : dV o/dIo (%/m A)
Tem perature : Ta (
o
C)
NJM2861/62_3.0V
Load Re gul ation v.s. Tem perat ure
@:V
IN
=4V
Io= 0- 60mA
Co= 1µF
(Ceramic)
Cp= 0.01µF
0
0.5
1
1.5
2
2.5
3
3.5
4
-50 0 50 100 150 200
Out pu t Vo ltage Vo (V)
Ambient Temperature Ta (
o
C)
NJM2861/62_3.0V
Output Vo ltage vs. Amb i ent T emperat ure
@:V
IN
=4V
Io=30mA
Co=1µF
(Ceramic)
Cp=0.01µF
NJM2861/62
- 1
0
-
Ver.2006-02-20
! ELECTRICAL CHARA CTERISTICS
-1
0
1
2
3
4
5
6
7
-30
-25
-20
-15
-10
-5
0
5
10
048121620
NJM2861/62_3.0V
ON/OFF Transient Response
Output Voltage : Vo [V]
C ont rol Voltag e : Vo [ V ]
Time : t [mS]
Contro l Voltage
Out p ut Voltage
@:Ta=25
o
C
V
IN
=4.0V
Co=1.0µF(Ceramic)
Cp=0.01µF
Io=30mA
-1
0
1
2
3
4
5
6
7
-30
-25
-20
-15
-10
-5
0
5
10
012345
NJM2861/62_3.0V
ON /OFF Transient Respon se Without Load
Output Voltage : Vo [V]
Control Voltage : Vo [V]
Time : t [s]
Control Voltage
Out p ut Voltage
@:Ta=25
o
C
V
IN
=4.0V
Co=1.0µF(Ceramic)
Cp=0.01µF
Io=0mA
2.94
2.96
2.98
3
3.02
3.04
3.06
3.08
3.1
-1
0
1
2
3
4
5
6
7
0 40 80 120 160 200
NJM2861/62_3.0V
Lin e T ran s ien t R e spo nse
Outp u t Vo l tage : Vo [ V]
Input Voltage : V
IN
[V]
Tim e : t [µ
µµ
µs]
Inp ut Vo lta ge
Output Voltage
@:Ta=25
o
C
Co=1.0µF(Ceramic)
Cp=0.01µF
Io=30mA
2.92
2.94
2.96
2.98
3
3.02
3.04
3.06
3.08
-250
-200
-150
-100
-50
0
50
100
150
0 40 80 120 160 200
NJM2861/62_3.0V
Lo ad Transient Response
O utpu t Vol tag e : V o [ V]
Output Curren t : Io [m A]
Tim e : t [µ
µµ
µs]
Out put Cur rent
Output Voltage
@:Ta=25
o
C
V
IN
=4.0V
Co=1.0 µF(Ceramic)
Cp=0.01 µF
[CAU TION ]
The specifications on this databook are only
given for information , w ithout 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.
