LM2577T-ADJ/NOPB National Semiconductor, LM2577T-ADJ/NOPB Datasheet - Page 6

• Manufacturer Part Number: LM2577T-ADJ/NOPB
• Description: IC REG SIMPLE SWITCHER TO-220-5
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Up (Boost), Flyback, Forward Converterr

Specifications of LM2577T-ADJ/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 11.4 ~ 12.6 V
• Current - Output: 3A
• Frequency - Switching: 52kHz
• Voltage - Input: 3.5 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-5 (Straight Leads)
• Current, Input Bias: 100 nA
• Current, Output: 3 A
• Current, Supply: 25 mA
• Frequency, Oscillator: 52 kHz
• Package Type: TO-220
• Regulation, Line: 20 mV
• Regulation, Load: 20 mV
• Regulator Type: Boost (Step-Up)
• Resistance, Thermal, Junction To Case: 2 °C/W
• Temperature, Operating, Range: -40 to +125 °C
• Transconductance: 3700
• Voltage, Gain: 800 V/V
• Voltage, Input: 3.5 to 40 V
• Dc To Dc Converter Type: Step Up
• Pin Count: 5 +Tab
• Input Voltage: 40V
• Output Voltage: 11.6 to 12.4V
• Switching Freq: 48 TO 56KHz
• Output Current: 3A
• Efficiency: 80%
• Output Type: Adjustable
• Switching Regulator: Yes
• Load Regulation: 50mV
• Line Regulation: 50mV
• Mounting: Through Hole
• Input Voltage (min): 3.5V
• Operating Temperature Classification: Automotive
• For Use With: 551011367-061 - BOARD WEBENCH LM2577,LM2585/87
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device
• Other names: *LM2577T-ADJ; *LM2577T-ADJ/NOPB; LM2577T-ADJ

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DEVICE PARAMETERS
I
V
f
V
R
G
A
I
D
I
V
S
O
SS
L
UV
REF
FB
VOL
SAT
M
Electrical Characteristics—LM1577-15, LM2577-15
Specifications with standard type face are for T
Range. Unless otherwise specified, V
Symbol
Input Supply Current
Input Supply
Undervoltage
Lockout
Oscillator Frequency
Output Reference
Voltage
Output Reference
Voltage Line Regulation
Feedback Pin Input
Voltage Line Regulator
Error Amp
Transconductance
Error Amp
Voltage Gain
Error Amplifier
Output Swing
Error Amp
Output Current
Soft Start Current
Maximum Duty
Cycle
Switch
Transconductance
Switch Leakage
Current
Switch Saturation
Voltage
Parameter
IN
= 5V, and I
V
(Switch Off)
I
V
(Max Duty Cycle)
I
Measured at Switch Pin
I
Measured at Feedback Pin
V
V
V
I
V
V
R
(Note 7)
Upper Limit
V
Lower Limit
V
V
V
V
V
V
I
V
V
(Switch Off)
I
V
(Max Duty Cycle)
SWITCH
SWITCH
SWITCH
COMP
SWITCH
SWITCH
FEEDBACK
COMP
IN
COMP
IN
COMP
COMP
FEEDBACK
FEEDBACK
FEEDBACK
COMP
FEEDBACK
COMP
COMP
SWITCH
FEEDBACK
COMP
COMP
= 3.5V to 40V
= 3.5V to 40V
J
= 25˚C, and those in bold type face apply over full Operating Temperature
= −30 µA to +30 µA
= 2.0V
= 1.0V
= 1.0V
= 1.1V to 1.9V
= 1.0V
= 0V
= 1.5V
= 2.0V
= 1.0 MΩ
= 2.0A
= 100 mA
= 100 mA
= 100 mA
= 2.0A
SWITCH
= 65V
Conditions
= 18.0V
= 12.0V
= 18.0V
= 12.0V to 18.0V
= 12.0V
= 18.0V
= 0.
6
Typical
±
2.90
12.2
12.5
300
7.5
2.4
0.3
5.0
0.5
25
52
15
10
65
95
10
200
(Continued)
(Notes 3, 4)
14.70/14.55
15.30/15.45
LM1577-15
±
±
10.0/14.0
2.70/2.65
3.10/3.15
170/110
420/500
0.4/0.55
300/
300/600
2.2/2.0
130/
2.5/1.5
7.5/9.5
0.7/0.9
50/85
48/42
56/62
40/20
93/90
Limit
±
±
400
90
14.70/14.55
15.30/15.45
LM2577-15
±
±
10.0/14.0
2.70/2.65
3.10/3.15
0.40/0.55
(Note 5)
170/110
420/500
300/
300/600
2.2/2.0
130/
2.5/1.5
7.5/9.5
0.7/0.9
50/85
48/42
56/62
40/20
93/90
Limit
±
±
400
90
µmho(max)
µmho(min)
kHz(max)
mA(max)
mA(max)
kHz(min)
V/V(min)
µA(max)
µA(max)
µA(max)
(Limits)
µA(min)
µA(min)
V(max)
V(max)
V(max)
V(max)
%(min)
V(min)
V(min)
V(min)
Units
µmho
kHz
mA
mA
mV
V/V
A/V
kΩ
µA
µA
µA
%
V
V
V
V
V