LM3488QMM National Semiconductor, LM3488QMM Datasheet - Page 4

• Manufacturer Part Number: LM3488QMM
• Description: LM3488/LM3488Q High Efficiency Low-Side N-Channel Controller for Switching Regulators; Package: MINI SOIC; No of Pins: 8; Container: Reel
• Manufacturer: National Semiconductor

www.national.com
V
V
V
Gm
A
I
V
T
T
T
VSD
I
I
TSD
T
θ
EAO
SD
FB
SS
r
f
sh
JA
SL
OVP
OVP(HYS)
VOL
EAO
Symbol
Internal Compensation Ramp
Voltage
Output Over-voltage
Protection (with respect to
feedback voltage) (Note 8)
Output Over-Voltage
Protection Hysteresis(Note 8)
Error Ampifier
Transconductance
Error Amplifier Voltage Gain
Error Amplifier Output Current
(Source/ Sink)
Error Amplifier Output Voltage
Swing
Internal Soft-Start Delay
Drive Pin Rise Time
Drive Pin Fall Time
Shutdown and
Synchronization signal
threshold (Note 5)
Shutdown Pin Current
Feedback Pin Current
Thermal Shutdown
Thermal Shutdown Hysteresis
Thermal Resistance
Parameter
V
V
V
V
I
V
I
Source, V
Sink, V
Upper Limit
V
COMP Pin = Floating
Lower Limit
V
V
Cgs = 3000pf, V
Cgs = 3000pf, V
Output = High
Output = Low
V
V
MM Package
EAO
EAO
IN
COMP
COMP
COMP
COMP
FB
FB
FB
SD
SD
= 5V
= 0V
= 1.4V
= 1.2V, V
= 5V
= 0V
= 100µA (Source/Sink)
= 100µA (Source/Sink)
= 1.4V
= 1.4V
= 1.4V
= 1.4V
COMP
COMP
Conditions
= 1.4V, V
COMP
= 1.4V, V
DR
DR
= Floating
= 0 to 3V
= 0 to 3V
4
FB
= 1.4V
FB
= 0V
Typical
−140
0.56
1.27
0.65
800
110
165
200
2.2
−1
+1
92
50
60
38
25
25
15
10
4
1000/ 1265
−180/ −185
−100/ −85
600/ 365
140/ 180
32/ 25
78/ 85
80/ 50
Limit
132
110
1.8
2.4
0.2
1.0
1.4
0.3
52
20
26
44
µmho (max)
µmho (min)
V/V (max)
V/V (min)
mV(max)
mV(max)
mV(max)
µA (max)
µA (max)
mV(min)
mV(min)
mV(min)
µA (min)
µA (min)
V (max)
V(max)
V(max)
V (min)
V(min)
V(min)
Units
µmho
msec
°C/W
V/V
mV
mV
mV
µA
µA
µA
nA
ns
ns
°C
°C
V
V
V
V