NCP694
1A CMOS Low-Dropout
Voltage Regulator
The NCP694 series of fixed output super low dropout linear
regulators are designed for portable battery powered applications with
high output current requirement up to 1 A and
−3
mV typical load
regulation at 1 A. Each device contains a voltage reference unit, an
error amplifier, a PMOS power transistor, resistors for setting output
voltage, a current limit circuits for overcurrent and thermal−shutdown.
A standby mode with ultra low supply current can be realized with the
chip enable function.
The device is housed in the SOT−89−5 and HSON−6 packages.
Standard voltage versions are 0.8 V, 1.0 V, 1.2 V, 2.5 V, 3.3 V for fixed
version and adjustable output voltage down to 1.0 V.
Features
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MARKING
DIAGRAMS
1
SOT−89−5
CASE 528AB
XXX
XMM
G
6
6
1
HSON−6
CASE 506AE
XXX
XYYG
1
•
Maximum Operating Voltage of 6.0 V
•
Minimum Output Voltage Down to 0.8 V for Fix Version and 1.0 V
•
•
•
•
•
•
•
•
•
for Adjustable Version
Load Regulation
−3
mV at 1 A Output Current
Low Dropout
Build−in Auto Discharge Function for D Version
Standby Mode With Low Consumption
These are Pb−Free Devices
Battery Powered Instruments
Hand−Held Instruments
Camcorders and Cameras
Portable communication equipments
Typical Applications
XXXX
= Specific Device Code
MM, YY = Lot Number
G or
G
= Pb−Free Package
For actual marking Pb−Free indicator, “G” or micro-
dot “G” may or may not be provided.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
©
Semiconductor Components Industries, LLC, 2011
June, 2011
−
Rev. 2
1
Publication Order Number:
NCP694/D
NCP694
6 5 4
HSON−6
1 2 3
(TOP VIEW)
5
4
3 2 1
(BOTTOM VIEW)
4
5
4 5 6
SOT−89−5
1
2
3
(TOP VIEW)
Figure 1. Pin Description
3
2
1
(BOTTOM VIEW)
PIN FUNCTION DESCRIPTION FOR SOT−89−5 PACKAGE
Pin No.
1
2
3
4
5
Pin Name
ADJ/NC
GND
CE
V
in
V
out
Description
Adjust pin for NCP694DADJHT1G and NCP694HADJHT1G / No connection
Power supply ground
This input is used to place the device into low−power standby. When this input is pulled low, the
device is disabled. If this function is not used, Enable should be connected to V
in
.
Positive power supply input voltage.
Regulated output voltage.
PIN FUNCTION DESCRIPTION FOR HSON−6 PACKAGE
Pin No.
1
2
3
4
5
6
Pin Name
V
out
V
out
ADJ / NC
GND
CE
V
in
Regulated output voltage
Regulated output voltage
Adjust pin for NCP694DSANADJT1G and NCP694HSANADJT1G / No connection
Power supply ground
This input is used to place the device into low power standby. When this input is pulled low, the
device is disabled. If this function is not used, Enable should be connected to Vin.
Positive power supply input voltage
Description
Vin
Vin
Vout
Vout
Vin
Vin
Vout
Vout
Vref
Vref
CE
Current Limit&
Thermal Shutdown
GND
CE
Current Limit
&
Thermal Shutdown
GND
Version H (NCP694HxxxxT1G)
Figure 2. Internal Block Diagram
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2
Version D (NCP694DxxxxT1G)
NCP694
MAXIMUM RATINGS
Rating
Input Voltage
Enable Voltage
Output Voltage
Power Dissipation SOT−89−5
Power Dissipation HSON−6
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature
Symbol
V
in
V
CE
V
out
P
D
P
D
T
J
T
A
T
stg
Value
6.5
−0.3
to V
in
−0.3
to V
in
+ 0.3
900
900
+150
−40
to +85
−55
to +125
Unit
V
V
V
mW
mW
°C
°C
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per JEDEC
Machine Model Method 200 V
THERMAL CHARACTERISTICS
Rating
Junction−to−Ambient SOT−89−5
Power Dissipation SOT−89−5
Junction−to−Ambient HSON−6
Power Dissipation HSON−6
NOTE:
Symbol
R
qJA
P
D
R
qJA
P
D
1 oz Copper Thickness, 100 mm
2
Test Conditions
1 oz Copper Thickness, 100 mm
2
Typical Value
111
900
111
900
Unit
°C/W
mW
°C/W
mW
Single component mounted on an 80 x 80 x 1.5 mm FR4 PCB with stated copper head spreading area. Using the following
boundary conditions as stated in EIA/JESD 51−1, 2, 3, 7, 12.
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3
NCP694
ELECTRICAL CHARACTERISTICS FOR FIX VERSION
(V
in
= V
out(nom.)
+ 1.0 V, V
CE
= V
in
, C
in
= 4.7
mF,
C
out
= 4.7
mF,
T
A
=
25°C, unless otherwise noted)
Characteristic
Output Voltage (T
A
= 25°C, I
out
= 100 mA, V
in
−V
out
= 1 V)
0.8 V
1.0 V
1.2 V
2.5 V
3.3 V
Output Current (V
in
−V
out
= 1 V)
Input voltage
Line Regulation (I
out
= 100 mA)
Load Regulation (I
out
= 1 mA to 300 mA, V
in
= V
out
+ 2.0 V)
Load Regulation (I
out
= 1 mA to 1 A, V
in
= V
out
+ 2.0 V)
Supply Current (I
out
= 0 A, (V
in
−
V
out
) = 1 V, V
CE
= V
in
)
Standby Current (V
CE
= 0V, V
in
= 6.0 V)
Short Current Limit (V
out
= 0 V)
Output Voltage Temperature Coefficient
Enable Input Threshold Voltage
(Voltage Increasing, Output Turns On, Logic High)
(Voltage Decreasing, Output Turns Off, Logic Low)
Enable Pull−down Current
Drop Output Voltage (T
A
= 25°C, I
out
= 300 mA)
0.8 V Output voltage V
out
(V)
1.0 V
1.2 V
2.5 V
3.3 V
Drop Output Voltage (T
A
= 25°C, I
out
= 1A)
0.8 V Output voltage V
out
(V)
1.0 V
1.2 V
2.5 V
3.3 V
Ripple Rejection (Ripple 200 mV
pp
, I
out
=100 mA, f = 1 kHz)
Output Noise (BW = 10 Hz to 100 kHz, I
out
= 1 mA)
Thermal Shutdown Temperature/Hysteresis
R
DS(on)
of additional output transistor (D version only)
V
in
−V
out
Symbol
V
out
Min
0.770
0.970
1.170
2.450
3.234
Typ
0.8
1.0
1.2
2.5
3.3
1
1.4
−
−15
−
0.05
−2
−3
60
0.1
250
−
1.0
0
$100
−
−
100
0.33
0.22
0.18
0.10
0.05
0.72
0.64
0.56
0.32
0.18
70
30
150/30
30
−
6
0.4
220
0.570
0.470
0.320
0.150
0.100
6.0
0.2
15
−
100
1.0
Max
0.830
1.030
1.030
2.550
3.366
Unit
V
I
out
V
in
Reg
line
Reg
load03
Reg
load1
I
ss
I
stby
I
sh
T
c
V
thCE
A
V
%/V
mV
mV
mA
mA
mA
ppm/°C
V
nA
V
V
in
−V
out
V
PSRR
V
noise
dB
mV
rms
°C
W
T
shd
/Hyst
R
DS(on)
2. Maximum package power dissipation limits must be observed.
3. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
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4
NCP694
ELECTRICAL CHARACTERISTIC FOR ADJUSTABLE VERSION
(V
in
= V
out
+ 1 V, V
CE
= V
in
, C
in
= C
out
= 4.7
mF,
T
A
= 25°C, unless otherwise noted)
Characteristic
Input Voltage
Supply Current (V
out
= V
ADJ
, V
in
= 2 V, V
CE
= V
in
)
Standby Current (V
in
= 6.0 V, V
CE
= 0 V)
Reference Voltage For Adjustable Voltage Regulator (V
out
= V
ADJ
, V
in
= 2.0 V,
I
out
= 100 mA
Output Voltage Range
Output Current (V
out
= V
ADJ
, V
in
= 2.0 V)
Load Regulation (V
in
= 1.4 V, 1 mA < I
out
< 300 mA, V
out
= V
ADJ
)
Load Regulation (V
in
= 1.7 V, 1 mA < I
out
< 1 A, V
out
= V
ADJ
)
Dropout Voltage (V
out
= V
ADJ
, I
out
= 300 mA)
Dropout Voltage (V
out
= V
ADJ
, I
out
= 1 A)
Line regulation (V
out
= V
ADJ
, I
out
= 100 mA, 1.5 V < V
in
< 6.0 V
PSRR ( f = 1 kHz, V
out
= V
ADJ
, V
in
= 2.5 V, I
out
= 100 mA, Input Ripple 0.5 V
pp
)
Output Voltage Temperature Coefficient (I
out
= 100 mA,
−40°C
< T
J
< 85°C)
Short Current Limit (V
out
= V
ADJ
= 0)
Enable Pull−down Current
Enable Input Threshold Voltage
(Voltage Increasing, Output Turns On, Logic High)
(Voltage Decreasing, Output Turns Off, Logic Low)
Thermal Shutdown Temperature/Hysteresis
R
DS(on)
of additional output transistor (D version only)
Symbol
V
in
I
SS
I
standby
V
ref
Vout
range
I
out
V
out
/I
out
V
out
/I
out
V
drop300
V
drop1
V
out
/V
in
PSRR
V
out
/T
J
I
lim
I
CE
Vth
CE
1
0
0.97
1
1
−15
−2
−3
0.18
0.56
0.05
70
$100
250
100
−
−
150/
30
30
220
6
0.4
0.2
0.32
15
Min
1.4
60
0.1
1
Typ
Max
6
100
1
1.03
V
in
Unit
V
uA
uA
V
V
A
mV
mV
V
V
%V
dB
ppm/°C
mA
nA
V
T
shdn
/
Hyst
R
DS(on)
°C
W
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5
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