LT1610 Linear Technology, LT1610 Datasheet - Page 16

• Manufacturer Part Number: LT1610
• Description: Constant-Current/ Constant-Voltage 1.4MHz Step-Up DC/DC Converter
• Manufacturer: Linear Technology

3V to 4.2V
PART NUMBER
LTC
LT1307
LTC1440/1/2
LTC1502-3.3
LT1521
LT1611
LT1613
LTC1682
LT1610
TYPICAL APPLICATIONS
RELATED PARTS
16
4 CELLS
INPUT
Li-ION
®
1474
C1, C2: AVX TAJB226M006
C3: AVX 1206YC105 (X7R)
D1: MOTOROLA MBR0520
L1, L2: MURATA LQH3C220 (UNCOUPLED)
+
C1, C2: AVX TAJB226M006
C3: AVX 1206YC105 (X7R)
D1: MOTOROLA MBR0520
L1, L2: MURATA LQH3C220 (UNCOUPLED)
+
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
OR SUMIDA CLS62-220 (COUPLED)
C1
22 F
6.3V
4-Cell to 5V/120mA SEPIC DC/DC Converter
C1
22 F
6.3V
OR SUMIDA CLS62-220 (COUPLED)
DESCRIPTION
Micropower Step-Down DC/DC Converter
Single Cell Micropower 600kHz PWM DC/DC Converter
Ultralow Power Single/Dual Comparators with Reference
Single Cell to 3.3V Regulated Charge Pump
Micropower Low Dropout Linear Regulator
Inverting 1.4MHz DC/DC Converter
Step-Up 1.4MHz DC/DC Converter
Doubler Charge Pump with Low Noise Linear Regulator
Li-Ion to 3.3V SEPIC DC/DC Converter
1
8
1
8
COMP
V
COMP
C
V
GND
V
C
IN
V
GND
7
6
IN
7
6
LT1610
22 H
LT1610
L1
22 H
L1
PGND
•
SW
SHDN
PGND
•
SW
SHDN
4
5
U
FB
4
5
FB
SHUTDOWN
SHUTDOWN
CERAMIC
2
3
CERAMIC
2
3
1 F
C3
N
1 F
C3
1M
604k
1M
324k
•
L2
22 H
•
L2
22 H
D1
D1
+
+
C2
22 F
6.3V
1610 TA14
C2
22 F
6.3V
1610 TA16
V
3.3V
120mA
OUT
V
5V
120mA
OUT
COMMENTS
94% Efficiency, 10 A I
3.3V at 75mA from 1 Cell, MSOP Package
2.8 A I
40 A I
500mV Dropout, 300mA Current, 12 A I
5V to – 5V at 150mA, Tiny SOT-23 Package
3.3V to 5V at 200mA, Tiny SOT-23 Package
Fixed 3.3V and 5V Outputs, 1.8V to 4.4V Input Range, 50mA Output
Q
Q
, No Inductors, 3.3V at 10mA from 1V Input
, Adjustable Hysteresis
80
70
60
50
40
30
80
70
60
50
40
30
0.1
0.1
Q
, 9V to 5V at 250mA
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
4-Cell to 5V Efficiency
= 3.6V
= 4.2V
= 5V
= 6.5V
= 2.7V
= 3.6V
= 4.2V
LOAD CURRENT (mA)
LOAD CURRENT (mA)
1
1
LINEAR TECHNOLOGY CORPORATION 1998
Efficiency
1610f LT/TP 0699 4K • PRINTED IN USA
Q
10
10
1610 TA15
1610 TA17
100
100