SC4607
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless otherwise specified, VCC = 3.3V, CT = 270pF, T
A
= -40°C to 85°C, T
A
=T
J
Parameter
Error Amplifier (Cont.)
VOUT High
VOUT Low
Oscillator
Initial Accuracy
Voltage Stability
Temperature Coefficient
Minimum Operation Frequency
(1)
Maximum Operation Frequency
(1)
Ramp Peak to Valley
Ramp Peak Voltage
Ramp Valley Voltage
Sleep, Soft Start, Current Limit
Sleep Threshold
Sleep Input Bias Current
Soft Start Time
(1)
Test Conditions
Min
Typ
Max
Unit
I
COMP
= -5.5mA
I
COMP
= 5.5mA
V
CC
- 0.5
V
CC
- 0.3
0.3
0.45
V
T
A
= 25°C
T
A
= 25°C, V
CC
= 2.25V to 5.5V
T
A
= -40°C to 85°C
525
575
0.5
0.02
625
kHz
%/V
%/°C
kHz
50
1M
1
1.3
0.3
Hz
V
V
V
Measured at FS
V
SYNC
= 0V
F
SW
= 575 KHz
T
J
= 25°C
-45
-1
1.2
-50
0.28
130
75
mV
µA
ms
ISET Bias Current
Temperature Coefficient of ISET
Current Limit Blank Time
Gate Drive
Duty Cycle
Pull-Up Resistance (DRVH)
(2)
Pull-Down Resistance (DRVH)
Pull-Up Resistance (DRVL)
(1)
(2)
(1)
-55
µA
%/°C
ns
97
V
BST
- V
PHASE
= 3.3V, I
SOURCE
= -100mA
V
BST
- V
PHASE
= 3.3V, I
SINK
= 100mA
V
CC
= 3.3V, I
SOURCE
= -100mA
(2)
%
Ω
Ω
Ω
Ω
ns
ns
ns
2.7
2.4
2.2
1.5
35
27
40
Pull-Down Resistance (DRVL)
Output Rise Time
Output Fall Time
Minimum Non-Overlap
(1)
V
CC
= 3.3V, I
SINK
= 100mA
V
CC
= 3.3V, C
OUT
= 4.7nF
V
CC
= 3.3V, C
OUT
= 4.7nF
Notes:
(1). Guaranteed by design.
(2). Guaranteed by characterization.
2005 Semtech Corp.
3
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SEMTECH [ SEMTECH CORPORATION ]
