LT1611 Linear Technology, LT1611 Datasheet - Page 12

• Manufacturer Part Number: LT1611
• Description: Constant-Current/ Constant-Voltage 1.4MHz Step-Up DC/DC Converter
• Manufacturer: Linear Technology

PACKAGE
LT1611
SHUTDOWN
12
TYPICAL APPLICATIO S
RELATED PARTS
PART NUMBER
LT1307
LT1316
LT1317
LT1370/LT1371
LT1610
LT1613
LT1614
LT1615
LT1617
Burst Mode is a trademark of Linear Technology Corporation.
V
IN
+
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
C1: AVX TAJB226M010
C2: TAIYO YUDEN LMK212BJ105MG
C3: AVX TAJA685M016
D1: MOTOROLA MBR0520
L1: SUMIDA CL562-150
C1
22 F
DESCRIPTION
Single Cell Micropower DC/DC with Low Battery Detector
Burst Mode
2-Cell Micropower DC/DC with Low Battery Detector
500kHz High Efficiency DC/DC Converter
Single Cell Micropower DC/DC
1.4MHz SOT-23 Step-Up DC/DC Converter
Inverting Mode Switching Regulator with Low-Battery Detector
Micropower SOT-23 Step-Up DC/DC Converter
Micropower SOT-23 Inverting Regulator
(0.014 – 0.022)
4-Cell to –10V Inverting Converter
0.35 – 0.55
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DIMENSIONS ARE INCLUSIVE OF PLATING
3. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
4. MOLD FLASH SHALL NOT EXCEED 0.254mm
5. PACKAGE EIAJ REFERENCE IS SC-74A (EIAJ)
DESCRIPTION
V
SHDN
IN
LT1611
GND
15 H
L1A
TM
Operation DC/DC with Programmable Current Limit
NFB
SW
(0.059 – 0.069)
(0.102 – 0.118)
1.50 – 1.75
2.60 – 3.00
1 F
C2
U
68.1k
10k
[phone]
[phone]
[phone]
U
(0.004 – 0.008)
0.09 – 0.20
(NOTE 2)
D1
Dimensions in inches (millimeters) unless otherwise noted.
15 H
L1B
(0.00 – 0.006)
0.00 – 0.15
+
FIVE PLACES (NOTE 2)
(LTC DWG # 05-08-1633)
5-Lead Plastic SOT-23
C3
6.8 F
1611 TA03
(0.014 – 0.020)
V
–10V/60mA
OUT
0.35 – 0.50
S5 Package
(0.035 – 0.057)
(0.035 – 0.051)
0.90 – 1.45
0.90 – 1.30
COMMENTS
3.3V/75mA from 1V, 600kHz Fixed Frequency
1.5V Minimum V
3.3V/200mA from Two Cells, 600kHz Fixed Frequency
42V, 6A/3A Internal Switch, Negative Feedback Regulation
3V/30mA from 1V, 1.7MHz Fixed Frequency, 30 A I
5V at 200mA from 3.3V Input
– 5V at 200mA from 5V Input in MSOP
20 A Quiescent Current, V
V
4-Cell to –10V Inverting Converter Efficiency
OUT
Up to –34V, 20 A Quiescent Current
85
80
75
70
65
60
55
50
0
(0.110 – 0.118)
2.80 – 3.00
(NOTE 3)
25
IN
V
IN
(0.074)
, Precise Control of Peak Switch Current
LOAD CURRENT (mA)
1.90
REF
= 3.6V
50
OUT
LINEAR TECHNOLOGY CORPORATION 1998
75
Up to 34V
1611f LT/TP 0999 4K • PRINTED IN USA
V
IN
100
= 5V
S5 SOT-23 0599
V
(0.037)
IN
0.95
REF
125
= 6.5V
1611 TA04
150
Q