SC411 Semtech Corporation, SC411 Datasheet - Page 2

• Manufacturer Part Number: SC411
• Description: Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller
• Manufacturer: Semtech Corporation

www.DataSheet4U.com
Exceeding the specifi cations below may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specifi ed in the Electrical Characteristics section is not implied. Exposure to Absolute Maximum rated conditions for extended periods of time
may affect device reliability.
Notes:
1) This device is ESD sensitive. Use of standard ESD handling precautions is required.
2) Calculated from package in still air, mounted to 3” to 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51
standards.
Test Conditions: V
© 2007 Semtech Corp.
POWER MANAGEMENT
Absolute Maximum Ratings
Parameter
TON to VSSA
DH, BST to PGND
LX to PGND
PGND to VSSA
BST to LX
DL, ILIM, VDDP to PGND
EN/PSV, FB, PGD, VCCA, VOUT to VSSA
VCCA to EN/PSV, FB, PGD, VOUT
Thermal Resistance Junction to Ambient
Operating Junction Temperature Range
Storage Temperature Range
IR Refl ow (Soldering) 10s to 30s
Electrical Characteristics
Parameter
Input Supplies
VCCA
VDDP
VBAT Voltage
VDDP Operating Current
VCCA Operating Current
BAT
= 15V, EN/PSV = 5V, VCCA = VDDP = 5V, V
FB > regulation point,
(1)
FB > regulation point,
Off-time > 800ns
Conditions
(2)
(2)
I
I
LOAD
LOAD
= 0A
= 0A
OUT
Symbol
=1.25V, R
T
T
θ
T
STG
PKG
JA
J
2
TON
Min
1.8
= 1MΩ.
25°C
Typ
700
5.0
5.0
70
-0.3 to +25.0
-0.3 to +30.0
-2.0 to +25.0
Maximum
-0.3 to +0.3
-0.3 to +6.0
-0.3 to +6.0
-0.3 to +6.0
-40 to +125
-65 to +150
-
0.3 to +6.0
Max
25
260
31
-40°C to 125°C
Min
4.5
4.5
1100
Max
150
5.5
5.5
www.semtech.com
SC411
Units
°C/W
°C
°C
°C
V
V
V
V
V
V
V
V
Units
μA
μA
V
V
V