sc4510 Semtech Corporation, sc4510 Datasheet - Page 3

• Manufacturer Part Number: sc4510
• Description: Sc4510 High-performance Synchronous Buck Controller With Reference Tracking
• Manufacturer: Semtech Corporation

Unless specified: T
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Parameter
Error Amplifier
Input Bias Current
Input Offset Voltage
Unity Gain Bandwidth
Output Sink/Source Current
Buffered Reference
Internal reference
Line regulation
External reference input range
Reference output current
Oscillator and Synchronisation
Frequency range
Frequency setting
Sync input High voltage
Sync input Low voltage
Duty Cycle
Maximum Duty Cycle
Minimum Duty Cycle
Minimum pulse width
Current Limit
Current limit sense threshold
Delay to Output
Transconductance Gain
Tracking accuracy
2004 Semtech Corp.
A
= T
(1)
J
= -40°C to +85°C, AVCC/PVCC = 12V, Fosc = 300 kHz, SS/EN = 5V
(1)
Symbol
V
I
V
V
REFOUT
t
REFOUT
Fosc
Fosc
CSDLY
V
CSLIM
G
REFIN
REF
M
With respect to V
Output Source Mode
Fosc = 0.1 to 1 MHz
Output source mode
(Greater of the two)
5V < AVCC < 15V
Output Sink Mode
Test Conditions
Output sink mode
10 mV Overdrive
Fosc = 300 kHz
Fosc = 100 kHz
ROSC = 221K
Fosc = 1 MHz
V
-40C to +85C
COMP
3
= 2.5V
REFIN
0.49
Min
270
-85
0.3
1.5
0.1
60
0.02
-110
Typ
275
375
300
250
0.4
0.5
70
90
75
50
15
3
5
5
+
+
Max
-130
0.51
330
0.7
2.5
3.0
0.5
10.0
90
0.5
1
www.semtech.com
SC4510
Unit
MHz
MHz
%/V
KHz
mV
mV
mA
mV
mV
nS
nS
%
%
%
%
V
V
V
V
A
A