LTC1539 LINER [Linear Technology], LTC1539 Datasheet - Page 32

• Manufacturer Part Number: LTC1539
• Description: Dual High Efficiency, Low Noise, Synchronous Step-Down Switching Regulators
• Manufacturer: LINER [Linear Technology]

LTC1538-AUX/LTC1539
RELATED PARTS
32
TYPICAL
PART NUMBER
LTC1142/LTC1142HV
LTC1148/LTC1148HV
LTC1159
LT
LTC1430
LTC1435
LTC1436/LTC1436-PLL/ High Efficiency Low Noise Synchronous Step-Down
LTC1437
LTC1438
LTC1439/LTC1438X
LT1510
®
1375/LT1376
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
APPLICATION
DESCRIPTION
Dual High Efficiency Synchronous Step-Down Switching Regulators
High Efficiency Step-Down Switching Regulator Controllers
High Efficiency Step-Down Switching Regulator Controller
1.5A, 500kHz Step-Down Switching Regulators
High Power Step-Down Switching Regulator Controller
Single High Efficiency Low Noise Switching Regulator Controller
Switching Regulator Controllers
Dual, Synchronous Controller with Power-On Reset
and an Extra Comparator
Dual Synchronous Controller with Power-On Reset, Extra Linear
Controller, Adaptive Power, Synchronization, Auxiliary Regulator and
an Extra Uncommited Comparators
Constant-Voltage/Constant-Current Battery Charger
FAX
: [phone]
ON/OFF
2.9V
TELEX
U
AUXON
LTC1539
: 499-3977
3.3V to 2.9V at 3A Low Noise Linear Regulator
AUXDR
AUXFB
6.8nF
47k
22pF
Q1
MMBT2907ALTI
27
100
316k
1%
221k
1%
5V
10
COMMENTS
Dual Synchronous, V
Synchronous, V
Synchronous, V
High Frequency, Small Inductor, High Efficiency
Switchers, 1.5A Switch
High Efficiency 5V to 3.3V Conversion at Up to 15A
16-Pin Narrow SO and SSOP Packages
Full-Featured Single Controllers
Shutdown Current < 30 A
Shutdown Current < 30 A, Power-On Reset Eliminated
1.3A, Li-Ion, NiCd, NiMH, Pb-Acid Charger
+
ZETEX
FZT849
(SURFACE MOUNT)
330 F
3.3V
2.9V
3A
1538 TA05
2
IN
IN
20V
40V, For Logic Threshold FETs
IN
LINEAR TECHNOLOGY CORPORATION 1996
20V
LT/GP 0896 7K • PRINTED IN USA