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PDF MC78PC18NTR Data sheet ( Hoja de datos )
| Número de pieza | MC78PC18NTR | |
| Descripción | Low Noise 150 mA Low Drop Out(LDO) Linear Voltage Regulator | |
| Fabricantes | ON | |
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MC78PC00 Series
Low Noise 150 mA
Low Drop Out (LDO)
Linear Voltage Regulator
The MC78PC00 are a series of CMOS linear voltage regulators with
high output voltage accuracy, low supply current, low dropout voltage,
and high Ripple Rejection. Each of these voltage regulators consists of
an internal voltage reference, an error amplifier, resistors, a current
limiting circuit and a chip enable circuit.
The dynamic Response to line and load is fast, which makes these
products ideally suited for use in hand–held communication
equipment.
The MC78PC00 series are housed in the SOT–23 5 lead package,
for maximum board space saving.
MC78PC00 Features:
• Ultra–Low Supply Current: typical 35 mA in ON mode with no load.
• Standby Mode: typical 0.1 mA.
• Low Dropout Voltage: typical 0.2 V @ IOUT = 100 mA.
• High Ripple Rejection: typical 70 dB @ f = 1 kHz.
• Low Temperature–Drift Coefficient of Output Voltage:
typical ±100 ppm/°C.
• Excellent Line Regulation: typical 0.05%/V.
• High Accuracy Output Voltage: ±2.0%.
• Fast Dynamic Response to Line and Load.
• Small Package: SOT–23 5 leads.
• Built–in Chip Enable circuit (CE input pin).
• Identical Pinout to the LP2980/1/2.
MC78PC00 Applications:
• Power source for cellular phones (GSM, CDMA, TDMA), Cordless
Phones (PHS, DECT) and 2–way radios.
• Power source for domestic appliances such as cameras, VCRs and
camcorders.
• Power source for battery–powered equipment.
Block Diagram
1
VIN
MC78PCxx
5
VOUT
3
CE
Vref CURRENT LIMIT
2
GND
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5
1
SOT–23–5
N SUFFIX
CASE 1212
PIN CONNECTIONS
VIN 1 1 5 VOUT
GND 2
2
3
CE 3 4 4 N/C
(Top View)
DEVICE MARKING
(4 digits are available for device marking)
Marking
Voltage Version
12
K8
F5
F8
1.8 V
2.5 V
2.8 V
G0 3.0 V
G3 3.3 V
34
J0
5.0 V
Lot Number
Pin #
1
2
3
4
5
PINS DESCRIPTION
Symbol
Description
VIN Input Pin
GND Ground Pin
CE Chip Enable Pin
N/C No Connection
VOUT
Output Pin
ORDERING INFORMATION
Device
Package
Shipping
MC78PC18NTR
MC78PC25NTR
MC78PC28NTR SOT–23
MC78PC30NTR 5 Leads
3000 Units
Tape & Reel
MC78PC33NTR
MC78PC50NTR
Other voltages are available. Consult your ON Semiconductor
representative.
© Semiconductor Components Industries, LLC, 1999
October, 1999 – Rev. 2
1
Publication Order Number:
MC78PC00/D
1 page  
MC78PC00 Series
Figure 5. MC78PC18 Output Voltage versus
Output Current
2.0
1.8
1.6 3.8 V
1.4
2.8 V
1.2
2.3 V
1.0
0.8
0.6 VIN = 2.1 V
0.4
0.2 TA = 25°C
0
0 100 200 300 400 500
IOUT, OUTPUT CURRENT (mA)
Figure 6. MC78PC30 Output Voltage versus
Output Current
3.5
3.0 5.0 V
4.0 V
2.5
2.0 3.5 V
1.5 VIN = 3.3 V
1.0
0.5
TA = 25°C
0
0 100 200 300 400 500
IOUT, OUTPUT CURRENT (mA)
Figure 7. MC78PC40 (4.0 V) Output Voltage
versus Output Current
4.5
4.0 6.0 V
3.5
5.0 V
3.0
4.5 V
2.5
2.0 VIN = 4.3 V
1.5
1.0
0.5 TA = 25°C
0
0 100 200 300 400 500
IOUT, OUTPUT CURRENT (mA)
Figure 8. MC78PC50 Output Voltage versus
Output Current
6.0
5.0 7.0 V
4.0 6.0 V
3.0
5.5 V
VIN = 5.3 V
2.0
1.0
TA = 25°C
0
0 100 200 300 400 500
IOUT, OUTPUT CURRENT (mA)
Figure 9. MC78PC18 Output Voltage versus
Input Voltage
2.0
1.9
IOUT = 1 mA
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.0
30 mA
50 mA
TA = 25°C
2.0 3.0 4.0 5.0 6.0 7.0 8.0
VIN, INPUT VOLTAGE (VOLTS)
Figure 10. MC78PC30 Output Voltage versus
Input Voltage
3.1
3.0
2.9
2.8
1.0 mA
2.7
30 mA
2.6
IOUT = 50 mA
TA = 25°C
2.5
2.0 3.0 4.0 5.0 6.0 7.0
VIN, INPUT VOLTAGE (VOLTS)
8.0
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5
5 Page 
MC78PC00 Series
Figure 40. MC78PC30 Line Transient Response
3.4 6.0
3.3 5.0
INPUT VOLTAGE
3.2 4.0
3.1 3.0
OUTPUT VOLTAGE
3.0 2.0
2.9
tr = tf = 5.0 ms
COUT = 4.7 mF (TANTALUM)
1.0
IOUT = 30 mA
2.8 0
0 20 40 60 80 100 120
t, TIME (ms)
Figure 41. MC78PC30 Line Transient Response
3.4 6.0
3.3 5.0
INPUT VOLTAGE
3.2 4.0
3.1 3.0
OUTPUT VOLTAGE
3.0 2.0
2.9
tr = tf = 5.0 ms
COUT = 6.8 mF (TANTALUM)
1.0
IOUT = 30 mA
2.8 0
0 20 40 60 80 100 120
t, TIME (ms)
Figure 42. MC78PC30 Line Transient Response
3.4 6.0
3.3 5.0
INPUT VOLTAGE
3.2 4.0
3.1 3.0
OUTPUT VOLTAGE
3.0 2.0
2.9
tr = tf = 5.0 ms
COUT = 10 mF (TANTALUM)
1.0
2.8
IOUT = 30 mA
0
0 20 40 60 80 100 120
t, TIME (ms)
Figure 43. MC78PC30 Load Transient Response
3.4 150
3.3 100
OUTPUT CURRENT
3.2 50
3.1 0
3.0 OUTPUT VOLTAGE –50
2.9
CIN = 1.0 mf (TANTALUM)
COUT = 4.7 mF (TANTALUM)
–100
VIN = 4.0 V
2.8 –150
0 2.0 4.0 6.0 8.0 10 12 14 16 18 20
t, TIME (ms)
Figure 44. MC78PC30 Load Transient Response
3.4 150
3.3 100
OUTPUT CURRENT
3.2 50
3.1 0
3.0 OUTPUT VOLTAGE –50
2.9
CIN = 1.0 mf (TANTALUM)
COUT = 6.8 mF (TANTALUM)
–100
VIN = 4.0 V
2.8 –150
0 2.0 4.0 6.0 8.0 10 12 14 16 18 20
t, TIME (ms)
Figure 45. MC78PC30 Load Transient Response
3.4 150
3.3 100
OUTPUT CURRENT
3.2 50
3.1 0
3.0 OUTPUT VOLTAGE –50
2.9
CIN = 1.0 mf (TANTALUM)
COUT = 10 mF (TANTALUM)
–100
VIN = 4.0 V
2.8 –150
0 2.0 4.0 6.0 8.0 10 12 14 16 18 20
t, TIME (ms)
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| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet MC78PC18NTR.PDF ] | |
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