MC34063EBN STMicroelectronics, MC34063EBN Datasheet - Page 7

• Manufacturer Part Number: MC34063EBN
• Description: IC CTRL CIRCUIT DC-DC CONV 8-DIP
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck), Step-Up (Boost), Invertingr

Specifications of MC34063EBN

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 38 V
• Current - Output: 1.5A
• Frequency - Switching: 100kHz
• Voltage - Input: 3 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Applications: Controller, DCDC Converting
• Mounting Style: Through Hole
• Efficiency: 89 %
• Input / Supply Voltage (max): 50 V
• Input / Supply Voltage (min): 1.5 V
• Load Regulation: 10 mV
• Maximum Operating Temperature: + 125 C
• Maximum Power Dissipation: 1.25 W.
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 125 C
• Supply Current: 1.5 mA
• Switching Frequency: 24 KHz to 42 KHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-7414-5; MC34063EBN

Table 8.
Note:
a. Current less due to a built in 1 kΩ anti leakage resistor.
V
Symbol
START-UP
I
CC
1
2
3
4
Supply current
Start-up voltage
Total device
Maximum package power dissipation limit must be observed.
T
T
If darlington configuration is not used, care must be taken to avoid deep saturation of output
switch. The resulting switch-off time may be adversely affected. In a darlington configuration
the following output driver condition is suggested:
Forced
Start-up voltage is the minimum power supply voltage at which the internal oscillator begins
to work.
LOW
LOW
= 0 °C, T
= -40 °C, T
Parameter
β
of output current switch = I
(Note
HIGH
HIGH
4)
= 70 °C (AC and EC series); T
= 125 °C (EB series).
V
C
PIN 7 = V
V
PIN 2 = GND
Remaining pins
open
T
C
A
CC
PIN5
T
T
= 25°C
= 1 nF
= 1 µF, PIN 5 = 0
= 5 to 40 V
>V
TH
CC
Test conditions
COUTPUT
/(I
for MC34063A
for MC34063E
for MC34063A
for MC34063E
CDRIVER
LOW
= -40 °C, T
- 1 mA
Min.
(a)
)
≥
HIGH
10
Typ.
2.5
1.5
2.1
1.5
= 85 °C (AB series);
Max.
4
4
Unit
mA
V
7/23