NCP4589DMX18TCG ON Semiconductor, NCP4589DMX18TCG Datasheet - Page 4

• Manufacturer Part Number: NCP4589DMX18TCG
• Description: Low Dropout (LDO) Regulators 300 MA, 3-MODE LDO
• Manufacturer: ON Semiconductor

Specifications of NCP4589DMX18TCG

• Input Voltage Max: 5.25 V
• Output Voltage: 1.8 V
• Dropout Voltage (max): 230 mV
• Output Current: 400 mA
• Voltage Regulation Accuracy: 1 %
• Maximum Power Dissipation: 400 mW
• Mounting Style: SMD/SMT
• Package / Case: XDFN-6
• Primary Input Voltage: 5.25V
• Output Voltage Fixed: 1.8V
• Dropout Voltage Vdo: 340mV
• No. Of Pins: 6
• Voltage Regulator Case Style: XDFN
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

in Figure 3.
Input Decoupling Capacitor (C1)
connected as close as possible to the input and ground pin of
the NCP4589. Higher values and lower ESR improves line
transient response.
Output Decoupling Capacitor (C2)
to achieve stable operation of the IC. If tantalum capacitor
is used, and its ESR is high, the loop oscillation may result.
If output capacitor is composed from few ceramic capacitors
in parallel, the operation can be unstable. The capacitor
should be connected as close as possible to the output and
ground pin. Larger values and lower ESR improves dynamic
parameters.
Enable Operation
on and off. The regulator is switched on when CE pin voltage
VIN
ELECTRICAL CHARACTERISTICS
−40°C ≤ T
3. The maximum Input Voltage of the ELECTRICAL CHARACTERISTICS is 5.25 V. In case of exceeding this specification, the IC must be
4. The value of supply current is excluding the Pull−down constant current of CE and AE Pin
AE Pin Threshold Voltage
AE Pull Down Current
Power Supply Rejection Ratio
Output Noise Voltage
Low Output N−channel Tr. On
Resistance
A typical application circuit for NCP4589 series is shown
A 1 mF ceramic input decoupling capacitor should be
A 1 mF ceramic output decoupling capacitor is sufficient
The enable pin CE may be used for turning the regulator
operated on condition that the Input Voltage is up to 5.5 V and the total operating time is within 500hrs.
1m
C1
Figure 3. Typical Application Schematic
A
Parameter
≤ 85°C; V
IN
= V
VIN
AE
CE
OUT(NOM)
NCP4589
GND
VOUT
DV
V
+ 1 V; I
IN
IN
V
= V
OUT
= 0.2 V
OUT
OUT
= 1.0 V, I
+ 1 V or 2.2 V whichever is higher,
pk−pk
AE Input Voltage “L”
V
= 1 mA; C
APPLICATION INFORMATION
IN
Test Conditions
, I
= 4 V, V
OUT
OUT
100 kHz
1m
C2
Mode
= 30 mA, f = 10 Hz to
http://onsemi.com
= 30 mA, f = 1 kHz, Fast
IN
VOUT
CE
= C
= 0 V
OUT
4
= 1 mF; unless otherwise noted. Typical values are at T
is above logic high level. The enable pin has internal pull
down current source. If enable function is not needed
connect CE pin to V
Output Discharger
GND that is used for faster discharging of the output
capacitor. This function is activated when the IC goes into
disable mode.
Auto ECO and Fast Mode
on supply current and transient response at low output
current. These two modes can be selected by AE pin. If AE
pin is at low level Auto ECO mode is available. Please, see
supply current vs. output current charts.
Thermal
necessary to provide some thermal relief. The maximum
power dissipation supported by the device is dependent
upon board design and layout. Mounting pad configuration
on the PCB, the board material, and also the ambient
temperature affect the rate of temperature rise for the part.
That is to say, when the device has good thermal
conductivity through the PCB, the junction temperature will
be relatively low with high power dissipation applications.
PCB layout
high, noise pickup or unstable operation may result. Connect
capacitors C1 and C2 as close as possible to the IC, and make
wiring as short as possible.
The D version includes a transistor between V
The NCP4589 has two operation modes that have impact
As power across the IC increases, it might become
Make V
IN
Symbol
and GND line sufficient. If their impedance is
PSRR
R
I
V
AEPD
V
LOW
AEL
N
IN
.
Min
Typ
0.1
70
90
50
Max
0.4
A
= +25°C.
OUT
mV
Unit
dB
mA
W
V
rms
and