LTC1142HVCG Linear Technology, LTC1142HVCG Datasheet - Page 20

• Manufacturer Part Number: LTC1142HVCG
• Description: IC SW REG STEP-DOWN DUAL 28-SSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1142HVCG

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 3.3V, 5V
• Current - Output: 50mA
• Frequency - Switching: 250kHz
• Voltage - Input: 3.5 ~ 18 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

LTC1142/LTC1142L/LTC1142HV
PACKAGE DESCRIPTIO
RELATED PARTS
PART NUMBER DESCRIPTION
LTC1530
LTC1625
LTC1628
LTC1703
LTC1709
LTC1736
LTC1753
LTC1873
LTC1929
No R
20
TYPICAL APPLICATIO S
SENSE
(0.005 – 0.009)
**
*
0.13 – 0.22
NOTE: DIMENSIONS ARE IN MILLIMETERS
DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.152mm (0.006") PER SIDE
DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.254mm (0.010") PER SIDE
is a trademark of Linear Technology Corporation. Pentium is a registered trademark of Intel Corporation.
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
High Power Synchronous Step-Down Controller
No R
Dual High Efficiency 2-Phase Synch Step-Down Controller
Dual 550kHz Synch 2-Phase Sw Reg Controller w/ Mobile VID
2-Phase, 5-Bit Desktop VID Synch Step-Down Controller
Synchronous Step-Down Controller with 5-Bit Mobile VID Control Fault Protection, PowerGood, 3.5V to 36V Input, Current Mode
5-Bit Desktop VID Programmable Synch Switching Reg
Dual Synchronous Switching Regulator with 5-Bit Desktop VID
2-Phase, Synchronous High Efficiency Converter
(0.205 – 0.212)
5.20 – 5.38**
SENSE
(0.022 – 0.037)
0.55 – 0.95
TM
Current Mode Synchronous Step-Down Controller
(R
Figure 16. LTC1142HV-ADJ Output Current vs Trickle Charge Set Resistance
X
) for the Circuit in Figure 15 Using a 0.1 Current Sense Resistor R
0 – 8
U
U
(0.0256)
0.65
BSC
1400
1200
1000
(0.010 – 0.015)
Dimensions in inches (millimeters) unless otherwise noted.
800
600
400
200
0.25 – 0.38
0
0
28-Lead Plastic SSOP (0.209)
(LTC DWG # 05-08-1640)
1
SET RESISTANCE (k )
G Package
2
COMMENTS
SO-8 with Current Limit. No R
Above 95% Efficiency, Needs No R
Fits SO-8 Footprint
Constant Frequency, Standby 5V and 3.3V LDOs, 3.5V V
LTC1702 w/ 5-Bit Mobile VID for Mobile Pentium
Current Mode, V
1.3V to 3.5V Programmable Output Using Internal 5-Bit DAC
1.3V to 3.5V Programmable Core Output Plus I/O Output
Current Mode Ensures Accurate Current Sensing,
V
(0.002 – 0.008)
IN
0.05 – 0.21
(0.068 – 0.078)
Up to 36V, I
1.73 – 1.99
3
1142 F16
4
OUT
IN
28
1 2 3 4 5 6 7 8 9 10 11 12
to 36V, I
Up to 40A
27
26
25
OUT
24
(0.397 – 0.407)
10.07 – 10.33*
SENSE
SENSE1
23
1142fd LT/TP 0600 2K REV D • PRINTED IN USA
Up to 42A
22 21 20 19 18 17 16 15
LINEAR TECHNOLOGY CORPORATION 1995
SENSE
Required
, 16-Lead SSOP Package
13
®
14
Processor Systems
(0.301 – 0.311)
7.65 – 7.90
G28 SSOP 1098
IN
36V