sic417 Vishay, sic417 Datasheet - Page 4

• Manufacturer Part Number: sic417
• Description: 10-a, 28-v Integrated Buck Regulator With Programmable Ldo
• Manufacturer: Vishay

SiC417
Vishay Siliconix
Note:
a. This device is ESD sensitive. Use of standard ESD handling precautions is required.
b. Calculated from package in still air, mounted to 3 x 4.5 (in), 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specififed in the Electrical Characteristicsw section is not recommended.
www.vishay.com
4
THERMAL RESISTANCE RATINGS
Thermal Resistance, Junction-to-Ambient
High-Side MOSFET
Low-Side MOSFET
PWM Controller and LDO Thermal Resistance
Peak IR Reflow Temperature
ELECTRICAL SPECIFICATIONS
Parameter
Input Supplies
V
V5V Voltage
V
V
V5V UVLO Threshold Voltage
V5V UVLO Hysteresis
V
V5V Supply Current
Controller
F
Frequency Range
Bootstrap Switch Resistance
Timing
On-Time
Minimum On-Time
Minimum Off-Time
Soft Start
Soft Start Time
Analog Inputs/Outputs
V
Current Sense
Zero-Crossing Detector Threshold Voltage
Power Good
Power Good Threshold Voltage
Start-Up Delay Time
Fault (noise-immunity) Delay Time
Power Good Leakage Current
Power Good On-Resistance
B
IN
IN
IN
IN
OUT
On-Time Threshold
Input Voltage
UVLO Threshold Voltage
UVLO Hysteresis
Supply Current
Input Resistance
b
b
b
a
b
b
PG_R
V
V
V
Symbol
V
PG_V
V
V
5V_UV_HY
PG_I
V
IN_UV_HY
PG_I
V
PG_T
F
R
Sense-th
5V_UV+
IN_UV+
5V_UV-
V5V
IN_UV-
t
FB-TH
t
t
V
PWM
t
I
OFF
I
ON
ON
O-IN
SS
5V
IN
IN
DS-ON
CC
LK
TH
d
New Product
T
f
V
SW
Reflow
V
IN
EN/PSV = V5V, no load (f
Continuous mode operation V
OUT
Static V
- 25 °C to + 85 °C for min. and max.,
Test Conditions Unless Specified
= 12 V, V5V = 5 V, T
= 250 kHz, EN/PSV = floating, no load
Measured at V5V pin, falling edge
Measured at V5V pin, rising edge
Sensed at ENL pin, falling edge
Sensed at ENL pin, rising edge
EN/PSV, ENL = 0 V, V
= 5 V, f
ENL = V5V, EN/PSV = 0 V
Internal reference 500 mV
IN
EN/PSV, ENL = 0 V
and load, - 40 °C to + 85 °C
continuous mode
SW
EN/PSV = High
Standby mode:
V
T
I
FB
OUT
J
V
V
V
V
= 300 kHz, R
LX-P
= < 125 °C
EN
EN
EN
EN
> 500 mV
-
= I
= 0 V
= 0 V
= 0 V
= 0 V
GND
LIM
A
= + 25 °C for typ.,
/2
SW
IN
b
ton
= 28 V
= 25 kHz),
IN
= 133 kΩ
= 15 V,
25
20
50
b
- 10 %
2.235
0.495
Min.
200
999
4.5
2.4
3.7
3.5
- 3
3
S09-0799-Rev. B, 11-May-09
260
Document Number: 69062
1110
Typ.
0.85
130
250
500
2.6
2.4
0.2
3.9
3.6
0.3
8.5
0.5
10
10
50
10
3
2
0
2
5
+ 20 %
2.565
0.505
Max.
1000
1220
2.95
3.75
5.5
4.1
+ 3
28
20
7
1
°C/W
°C
Unit
mA
kHz
ms
mV
µA
kΩ
ms
µA
ns
µs
V
V
Ω
Ω
V