LTC2921/LTC2922 Series
19
29212fa
F Package
20-Lead Plastic TSSOP (4.4mm)
(Reference LTC DWG # 05-08-1650)
GN Package
16-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
PACKAGE DESCRIPTIO
U
F20 TSSOP 0502
0.09 – 0.20
(.0036 – .0079)
0
° – 8°
0.45 – 0.75
(.018 – .030)
4.30 – 4.50**
(.169 – .177)
6.40
BSC
134
5
6
7
8910
111214 13
6.40 – 6.60*
(.252 – .260)
20 19 18 17 16 15
1.10
(.0433)
MAX
0.05 – 0.15
(.002 – .006)
0.65
(.0256)
BSC
0.195 – 0.30
(.0077 – .0118)
2
MILLIMETERS
(INCHES)
DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED .152mm (.006") PER SIDE
DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED .254mm (.010") PER SIDE
*
**
NOTE:
1. CONTROLLING DIMENSION: MILLIMETERS
2. DIMENSIONS ARE IN
3. DRAWING NOT TO SCALE
RECOMMENDED SOLDER PAD LAYOUT
0.45 ±0.05
0.65 TYP
4.50 ±0.10
6.60 ±0.10
1.05 ±0.10
GN16 (SSOP) 0502
12
3
4
5
6
7
8
.229 – .244
(5.817 – 6.198)
.150 – .157**
(3.810 – 3.988)
16
15
14
13
.189 – .196*
(4.801 – 4.978)
12 11 10
9
.016 – .050
(0.406 – 1.270)
.015 ± .004
(0.38 ± 0.10)
× 45°
0° – 8° TYP
.007 – .0098
(0.178 – 0.249)
.053 – .068
(1.351 – 1.727)
.008 – .012
(0.203 – 0.305)
.004 – .0098
(0.102 – 0.249)
.0250
(0.635)
BSC
.009
(0.229)
REF
.254 MIN
RECOMMENDED SOLDER PAD LAYOUT
.150 – .165
.0250 TYP.0165 ±.0015
.045 ±.005
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
INCHES
(MILLIMETERS)
NOTE:
1. CONTROLLING DIMENSION: INCHES
2. DIMENSIONS ARE IN
3. DRAWING NOT TO SCALE
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
LTC2921/LTC2922 Series
20
29212fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
FAX: (408) 434-0507
www.linear.com
LINEAR TECHNOLOGY CORPORATION 2003
LT/TP 0404 1K REV A • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATIO
U
PART NUMBER DESCRIPTION COMMENTS
LTC2900 Programmable Quad Supply Monitor Adjustable RESET Timer, 10-Lead MSOP Package
LTC2901 Programmable Quad Supply Monitor with Watchdog Adjustable RESET Timer and Watchdog Timer,
Individual Comparator Outputs
LTC2902 Programmable Quad Supply Monitor Adjustable RESET Timer, Selectable Tolerance,
RESET Disable for Margining.
LTC4211 Hot Swap Controller with Multifunction Current Control Operates from 2.5V to 16.5V, 10-Lead MSOP Package
LTC4230 Triple Hot Swap Controller with Multifunction Current Control Operates from 1.7V to 16.5V, Supply Tracking
Early-Late Supply Sequencer with Early Supplies LED Indicator
2921/22 TA03
R
G2
10
LTC2922
V
CC
SENSE
R
A4
49.9k
1%
R
A3
49.9k
1%
R
B4
162k
1%
R
B3
232k
1%
V
OUT
V
FB
V
OUT
V
FB
V
OUT
V
FB
R
G3
10
R
G4
10
V1
V2
V3
V4
S0
S1
S2
S3
S4
GATE
PG
D0
D1
D2
D3
D4
GND TIMER
QRST
Si1012R
CBRST
1.8V ± 5%
3.3V ± 10%
2.5V ± 10%
Q2
Si2316DS
Q3
Si2316DS
Q4
Si2316DS
R
SENSE
WSL1206
0.05, 1%
C
TIMER
0.22µF
10V
1.8V
EARLY
1.5A MAX
3.3V
LATE
2.5V
LATE
C
GATE
0.47µF
25V
C
D2
0.1µF
25V
C
D3
0.1µF
25V
C
D4
0.1µF
25V
C
BYP
10µF
25V
DC/DC
CONVERTER
DC/DC
CONVERTER
DC/DC
CONVERTER
V
OUT
V
FB
V
OUT
V
FB
R
G0
10
R
G1
10
5V ± 10%
2.5V ± 5%
Q0
Si2316DS
Q1
Si2316DS
5V
EARLY
0.8A MAX
2.5V
EARLY
1.5A MAX
C
D0
0.1µF
25V
C
D1
0.1µF
25V
DC/DC
CONVERTER
DC/DC
CONVERTER
R
A2
49.9k
1%
R
B2
113k
1%
R
A1
49.9k
1%
R
B1
169k
1%
R
X0
100
R
X1
100
R
X2
100
R1
100k
C
PG
0.22µF
25V
19 18
17
16
20
14
12
10
8
215
7
9
11
1
6
5
4
3
13
CIRCUIT BREAKER
RESET CONTROL
PG PIN AS
SEQUENCED
GATE DRIVER
EARLY
VOLTAGES
ON
R6
330
t
GATE
~ 500ms
t
PG
~ 600ms

LTC2921CGN-3.3#TRPBF

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Current & Power Monitors & Regulators Power Supply Tracker w/3 FB Switches
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union