LT3439 LINER [Linear Technology], LT3439 Datasheet - Page 12

• Manufacturer Part Number: LT3439
• Description: Slew Rate Controlled Ultralow Noise1A Isolated DC/DC Transformer Driver
• Manufacturer: LINER [Linear Technology]

LT3439
RELATED PARTS
TYPICAL APPLICATIO
PART NUMBER
LT1533
LT1534/LT1534-1
LT1683
LT1738
LT1763
LT1764/LT1764A
LT1962
LT1963/LT1963A
LT1964
ThinSOT is a trademark of Linear Technology Corporation.
12
12V
V
IN
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone]
C1
4.7 F
DESCRIPTION
Slew Rate Controlled Ultralow Noise 1A Switching Regulator
Slew Rate Controlled Ultralow Noise 2A Switching Regulators V
Slew Rate Controlled Ultralow Noise Push-Pull Controller
Slew Rate Controlled Ultralow Noise DC/DC Controller
500mA, Low Noise Micropower, LDO
3A, Low Noise, Fast Transient Response, LDOs
300mA, Low Noise Micropower, LDO
1.5A, Low Noise, Fast Transient Response, LDOs
200mA, Low Noise Micropower, Negative LDO
C
680pF
T
C2
0.1 F
R
16.9k
T
11
5
6
7
SHDN
SYNC
C
R
T
T
GND
U
Low Noise 12V to –12V, 6W Push-Pull DC Transformer
10
LT3439
V
IN
13
PGND
www.linear.com
COLA
COLB
1, 16
R
SL
3
14
4
R
16.9k
SI
•
•
T1
•
•
C1: TDK C3216X5R1C475K
C3, C4: TDK C4532X5R1E156M
C5: TEK C3216X5R1C475K
D1, D2: MBRA130LT3
L1: COILCRAFT DO1608C-333
T1: COILTRONICS CTX02-16076
D1
D2
15 F
COMMENTS
V
Noise: <100 V
Current Slew Rates
Noise: <2mV
Current Slew Rates
V
Noise: <200 V
Current Slew Rates
V
Reduced Conducted and Radiated EMI, Independent Control of
Switch Voltage and Current Slew Rates
V
0.30V, I
I
V
0.34V, I
DD, TO220-5, Low Noise: <40 V
Ceramic Capacitors
V
0.27V, I
I
V
0.34V, I
DD, TO220-5, SOT-223, SO-8, Low Noise: <40 V
Stable with Ceramic Capacitors
V
0.34V, I
Low Noise: <30 V
SD
SD
C3
IN
IN
IN
IN
IN
IN
IN
IN
IN
: <1 A, SO-8, Low Noise: <20 V
: <1 A, MS8, Low Noise: <20 V
: 2.7V to 23V, I
: 2.7V to 23V, I
: 2.7V to 20V, I
: 2.7V to 20V, I
: 1.8V to 20V, V
: 2.7V to 20V, V
: 1.8V to 20V, V
: 2.1V to 20V, V
: –0.9V to –20V, V
Q
Q
Q
Q
Q
(Supply): 30 A, V
(Supply): 1mA, V
(Supply): 30 A, V
(Supply): 1mA, V
(Supply): 30 A, V
OPTIONAL
33 H
15 F
P-P
L2
P-P
P-P
C4
, Independent Control of Switch Voltage and
, Independent Control of Switch Voltage and
, Independent Control of Switch Voltage and
Q
Q
Q
Q
RMSP-P
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
(Supply): 12mA, I
(Supply): 12mA, I
(Supply): 25mA, I
(Supply): 12mA, I
OUT(MIN)
, Stable with Ceramic Capacitors
OUT
OUT
: 1.22V, Dropout Voltage (V at I
: 1.21V, Dropout Voltage (V at I
: 1.22V, Dropout Voltage (V at I
: 1.21V, Dropout Voltage (V at I
OUT
OUT
OUT
IN
I
I
LIM2
LIM4
GND
: –1.21V, Dropout Voltage (V at I
: 1.8V, 2.5V, 3.3V, I
: 1.5V, 1.8V, 2.5V, 3.3V, I
: 1.5V, 1.8V, 2.5V, 3V, 3.3V, 5V,
: 1.5V, 1.8V, 2.5V, 3V, 3.3V, 5V,
: Adj, –5V, I
LT1175
RMSP-P
150k
LINEAR TECHNOLOGY CORPORATION 2002
R1
RMSP-P
RMSP-P
SENSE
SD
SD
SD
SD
OUT
, “A” Version Stable with
: <12 A, SO-16, Low
: <12 A, SO-16, Low
: <24 A, SSOP-20, Low
: <24 A, SSOP-20, Greatly
324k
LT/TP 0303 2K • PRINTED IN USA
R2
SD
: <3 A, ThinSOT
3439 TA03
RMSP-P
C5
4.7 F
SD
: <1 A,
V
–12V
500mA
OUT
SD
, “A” Version
sn3439 3439fs
: <1 A,
OUT
OUT
OUT
OUT
):
):
):
):
TM
OUT
,
):