NCP5661, NCV5661
Low Output Voltage,
Ultra-Fast 1.0 A Low Dropout
Linear Regulator with Enable
The NCP5661/NCV5661 is a high performance, low dropout linear
regulator designed for high power applications that require up to 1.0 A
current. It is offered in both fixed and adjustable output versions. With
output voltages as low as 0.9 V and ultra−fast response times for load
transients, the NCP5661/NCV5661 also provides additional features
such as Enable and Error Flag (for the fixed output version),
increasing the utility of these devices. A thermally robust, 5 pin DPAK
or DFN 3x3.3 mm, combined with an architecture that offers low
ground current (independent of load), provides for a superior
high−current LDO solution.
Features
www.onsemi.com
MARKING
DIAGRAMS
NCP5661
1
5
DPAK−5 CENTER
LEAD CROP
CASE 175AA
NCV5661
5661xG
ALYWW
V5661xG
ALYWW
•
•
•
•
•
•
•
•
•
•
•
Ultra−Fast Transient Response (Settling Time: 1−3
ms)
Low Noise Without Bypass Capacitor (26
mV
rms)
Low Ground Current Independent of Load (3.0 mA Maximum)
Fixed/Adjustable Output Voltage Versions
Enable Function
Error Flag (Fixed Output Version)
Current Limit Protection
Thermal Protection
0.9 V Reference Voltage for Ultra−Low Output Operation
Power Supply Rejection Ratio > 65 dB
NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
•
These are Pb−Free Devices
Applications
NCP5661
1
DFN6
MN SUFFIX
CASE 506AX
x
1
661x
AYWWG
G
1
NCV5661
V661
zzz
AYWWG
G
= A for Adjustable Version
B for Fixed 1.2 V
C for Fixed 3.3 V
D for Fixed 1.5 V
E for Fixed 1.8 V
F for Fixed 2.5 V
G for Fixed 2.8 V
H for Fixed 3.0 V
= 12 for Fixed 1.2 V
15 for Fixed 1.5 V
18 for Fixed 1.8 V
25 for Fixed 2.5 V
28 for Fixed 2.8 V
30 for Fixed 3.0 V
33 for Fixed 3.3 V
ADJ for Adjustable Version
zzz
•
•
•
•
•
•
Servers
ASIC Power Supplies
Post Regulation for Power Supplies
Constant Current Source
Networking Equipment
Gaming and STB Modules
A
= Assembly Location
L
= Wafer Lot
Y
= Year
WW = Work Week
G
= Pb−Free
G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
©
Semiconductor Components Industries, LLC, 2014
1
October, 2014 − Rev. 18
Publication Order Number:
NCP5661/D
NCP5661, NCV5661
PIN FUNCTION DESCRIPTION
Pin
Adj/Fixed
DFN6
1
2,3
4, EPAD
5
6
6
Pin
Adj/Fixed
DPAK−5
1
2
3, TAB
4
5
5
Pin Name
Enable
V
in
Ground
V
out
Adj
(Adjustable Version)
Error Flag
(Fixed Version)
Description
This pin allows for on/off control of the regulator. To disable the device, connect to
Ground. If this function is not in use, connect to V
in
.
Positive Power Supply Input Voltage
Power Supply Ground
Regulated Output Voltage
This pin is connected to the resistor divider network and programs the output voltage.
An Error Flag is triggered when the output voltage is out of regulation excluding transi-
ent signals that may occur. Requires a pullup resistor
f
100 kW.
MAXIMUM RATINGS
Rating
Input Voltage
Output Pin Voltage
Adjust Pin Voltage
Enable Pin Voltage
Error Flag Voltage
Error Flag Current
Thermal Characteristics, DPAK−5 (Note 1)
Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Case
Thermal Characteristics, DFN6 (Note 2)
Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Lead (Note 3)
Operating Junction Temperature Range
Storage Temperature Range
Symbol
V
in
V
out
V
adj
V
en
V
ef
I
ef
R
θJA
R
θJC
R
θJA
R
θJL
T
J
T
stg
Value
18
−0.3 to Vin +0.3
−0.3 to Vin +0.3
−0.3 to Vin +0.3
−0.3 to Vin +0.3
3.0
100
8.0
°C/W
82
18
−40 to +150
−55 to +150
°C
°C
Unit
V
V
V
V
V
mA
°C/W
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
NOTE: This device series contains ESD protection and exceeds the following tests:
Human Body Model (HBM) JESD 22−A114−B
Machine Model (MM) JESD 22−A115−A.
The maximum package power dissipation is:
T
*
T
J(max)
A
P
+
D
R
The bipolar process employed for this IC is fully characterized and rated for reliable 18 V V
CCmax
operation. To avoid damaging
the part or degrading it’s reliability, power dissipation transients should be limited to under 20 W for DPAK.
For open−circuit to short−circuit transient,
P
DTransient
= V
CCmax
* I
SC
.
1. 1 oz copper, 0.26 in
2
copper area (minimum pad)
2. 1 oz copper, 1 in
2
copper area
3. Lead 2
qJA
www.onsemi.com
2
NCP5661, NCV5661
ELECTRICAL CHARACTERISTICS
(V
in
− V
out
= 1.5 V, for typical values T
J
= 25°C, for min/max values T
J
= −40°C to 125°C, C
in
= C
out
= 150
mF
unless otherwise noted.)
Characteristic
ADJUSTABLE OUTPUT VERSION
Input Voltage
Output Noise Voltage (f = 10 Hz to 100 kHz)
Output Voltage Accuracy
T
J
= 25°C (I
out
= 10 mA to 1.0 A)
T
J
= −20 to +125°C (I
out
= 10 mA to 1.0 A)
T
J
= −40 to +150°C (I
out
= 10 mA to 1.0 A)
Adjustable Pin Input Current
Line Regulation (I
out
= 10 mA, V
out
+1.5 V < V
in
< 7.0 V)
Load Regulation (10 mA < I
out
< 1.0 A)
Dropout Voltage (I
out
= 1.0 A)
Peak Output Current Limit
Internal Current Limitation
Ripple Rejection (120 Hz)
Ripple Rejection (1.0 kHz)
Thermal Shutdown (Guaranteed by Design)
Ground Current
I
out
= 1.0 A
Disabled State
Enable Input Threshold Voltage
Voltage Increasing, On State, Logic High
Voltage Decreasing, Off State, Logic Low
Enable Input Current
Enable Pin Voltage = 0.3 V
max
Enable Pin Voltage = 1.3 V
min
I
en
−
−
0.5
0.5
−
−
I
q
I
qds
V
en
1.3
−
−
−
−
0.3
mA
−
−
1.3
10
3.0
300
mA
mA
V
V
in
V
n
V
out
−1%
−1.5%
−2%
I
adj
REG
line
REG
load
V
DO
I
out
I
lim
RR
T
SHD
−
−
−
−
1.0
−
−
−
−
−
0.9
−
40
0.03
0.03
1.0
−
1.5
70
65
160
+1%
+1.5%
+2%
−
−
−
1.3
−
−
−
−
−
nA
%
%
V
A
A
dB
°C
2.0
−
−
26
9.0
−
V
mV
rms
V
Symbol
Min
Typ
Max
Unit
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
www.onsemi.com
3
NCP5661, NCV5661
ELECTRICAL CHARACTERISTICS
(V
in
− V
out
= 1.5 V, for typical values T
J
= 25°C, for min/max values T
J
= −40°C to 125°C, C
in
= C
out
= 150
mF
unless otherwise noted.)
Characteristic
FIXED OUTPUT VOLTAGE
Input Voltage
Output Noise Voltage (V
out
= 0.9 V)
Output Voltage Accuracy
T
J
= 25°C (I
out
= 10 mA to 1.0 A)
T
J
= −20 to +125°C (I
out
= 10 mA to 1.0 A)
T
J
= −40 to +150°C (I
out
= 10 mA to 1.0 A)
Line Regulation (I
out
= 10 mA, V
out
+1.5 V < V
in
< 7.0 V)
Load Regulation (10 mA < I
out
< 1.0 A)
Dropout Voltage (I
out
= 1.0 A)
Peak Output Current Limit
Internal Current Limitation
Ripple Rejection (120 Hz)
Ripple Rejection (1.0 kHz)
Thermal Shutdown (Guaranteed by Design)
Ground Current
I
out
= 1.0 A
Disabled State
Enable Input Threshold Voltage
Voltage Increasing, On State, Logic High
Voltage Decreasing, Off State, Logic Low
Enable Input Current
Enable Pin Voltage = 0.3 V
max
Enable Pin Voltage = 1.3 V
min
Error Flag (Fixed Output)
1.2 V Output
1.5 V Output
1.8 V Output
2.5 V Output
2.8 V Output
3.0 V Output
3.3 V Output
Error Flag Output Low Voltage Saturation (I
ef
= 1.0 mA)
Error Flag Leakage
Error Flag Blanking Time (Note 4)
V
efdo
I
efleak
T
ef
V
eflt
88
88
88
88
88
88
90
−
−
−
92
92
92
92
92
92
94
200
1.0
50
97
97
97
97
97
97
97
−
−
−
mV
mA
ms
I
en
−
−
0.5
0.5
−
−
% of V
out
I
q
I
qds
V
en
1.3
−
−
−
−
0.3
mA
−
−
1.3
30
3.0
300
mA
mA
V
V
in
V
n
V
out
−1%
−1.5%
−2%
REG
line
REG
load
V
DO
I
out
I
lim
RR
T
SHD
−
−
−
1.0
−
−
−
−
−
V
out
−
0.03
0.2
1.0
−
1.5
70
65
160
+1%
+1.5%
+2%
−
−
1.3
−
−
−
−
−
%
%
V
A
A
dB
°C
2.0
−
−
26
9.0
−
V
mV
rms
V
Symbol
Min
Typ
Max
Unit
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
4. Error Flag Blanking Time
www.onsemi.com
4
NCP5661, NCV5661
V
in
IN
ON
Voltage
Reference
Block
R3
Enable
Block
V
ref
= 0.9 V
Output
Stage
EN
OFF
V
out
C
in
R1
R4
ADJ
C
C
*
C
out
R2
GND
R1
+
R2
Vout
*
1
Vref
GND
*C
C
= 5.0 to 200 pF
Figure 1. Typical Schematic, Adjustable Output Version
V
in
IN
ON
Voltage
Reference
Block
R3
Enable
Block
V
ref
= 0.9 V
Output
Stage
R1
R4
C
out
EN
OFF
V
out
Cc
Rflag = 100 kW
C
in
R2
Error
Flag
EF
GND
GND
Figure 2. Typical Schematic, Fixed Output Version
www.onsemi.com
5
FPGA/CPLD
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
