SC418ULTRT Semtech, SC418ULTRT Datasheet - Page 5

• Manufacturer Part Number: SC418ULTRT
• Description: IC BUCK SYNC ADJ 20MLPQ
• Manufacturer: Semtech
• Series: EcoSpeed™, SmartDrive™r
• Type: Step-Down (Buck)r

Specifications of SC418ULTRT

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.5 ~ 5.5 V
• Frequency - Switching: 200kHz ~ 1MHz
• Voltage - Input: 3 ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-MLPQ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -
• Other names: SC418ULTRTTR

Electrical Characteristics (continued)
Parameter
Power Good On Resistance
Fault Protection
I
I
I
Output Under-Voltage Threshold
Smart Power-Save Protection Threshold
Over-Voltage Protection Threshold
Over-Voltage Fault Delay
Over-Temperature Shutdown
Logic Inputs/Outputs
Logic Input High Voltage - EN, ENL
Logic Input High Voltage - PSV
Logic Input Low Voltage - EN, ENL
EN Input Bias Current
ENL Input Bias Current
FB, FBL Input Bias Current
PSV Input Bias Current
Linear Dropout Regulator
FBL Accuracy
Current Limit
VLDO to VOUT Switch-over Threshold
VLDO to VOUT Non-switch-over Threshold
VLDO to VOUT Switch-over Resistance
LDO Drop Out Voltage
LIM
LIM
LIM
Comparator Offset
Source Current
Source Current Temperature Coefficient
(7)
(2)
(2)
(5)
(6)
(2)
(6)
(2)
V
V
V
V
FB
FB
FB
IN
with respect to internal 500mV reference,
with respect to internal 500mV reference
with respect to internal 500mV reference
Forced continuous mode operation;
to V
V
LDO
VLDO
PSV with respect to VDDA
FB, FBL = VDDA or AGND
< 90% of programmed value
Start-up and foldback;
With respect to AGND
With respect to AGND
, V
EN = VDDA or AGND
8 consecutive cycles
VLDO load = 10mA
V
VLDO
LDO
V
10°C hysteresis
Conditions
LDO
PSV = VDDA
Operating
= V
= 5V, VLDO load = 100mA
V
IN
= V
OUT
= 28V
OUT
= 3.3V
= 5V
(2)
0.735
Min
-140
-450
-0.4
135
-10
1.0
-8
-1
-1
9
Typ
0.41
0.75
+10
+20
150
115
200
-25
2.0
2.2
1.2
10
10
11
0
5
1
0.765
Max
+140
+450
+10
+18
0.4
+8
+1
11
SC418
Units
%/°C
mV
mA
μA
μA
μA
μA
μA
μs
%
%
%
°C
mV
mV
Ω
Ω
V
V
V
V
V
5