LTC1700 Linear Technology, LTC1700 Datasheet - Page 2

• Manufacturer Part Number: LTC1700
• Description: No RSENSE Synchronous Step-Up DC/DC Controller
• Manufacturer: Linear Technology

ABSOLUTE AXI U RATI GS
LTC1700
(Note 1)
Output Supply Voltage (V
RUN/SS, V
SYNC/MODE, I
SWITCH Voltage (SW) ..............................– 0.3V to 6.5V
TG, BG Peak Output Current (<10 s) ......................... 1A
Operating Temperature Range (Note 2) ...–40 C to 85 C
Junction Temperature (Note 3) ............................. 125 C
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
temperature range, otherwise specifications are at T
SYMBOL
V
V
I
I
V
V
V
V
I
f
V
DC MAX
I
g
2
ELECTRICAL CHARACTERISTICS
S
VFB
RUN/SS
OSC
LIMIT
m
SOP
OP
FB
LOADREG
OVL
RUN/SS
SYNC/MODE
V
V
OSENS
SENSE(MAX)
FB
Voltages ..............................– 0.3V to 2.4V
PARAMETER
Start-Up Minimum Operating Voltage
Minimum Operating Voltage
Hysteresis
Input DC Supply Current
Normal Mode
Sleep Mode
Start-Up Mode
Shutdown
Feedback Current
Regulated Output Voltage
Reference Voltage Line Regulation
Output Voltage Load Regulation
Output Overvoltage Lockout
Shutdown Threshold
Soft-Start Current Source
Oscillator Frequency
Start-Up Oscillator Frequency
SYNC/MODE Threshold
Maximum Duty Cycle
Maximum Current Sense Voltage
Current Limit At Start-Up
Transconductance of Error Amplifier
TH
Voltages ...........................– 0.3V to 6V
W
OUT
W W
) .....................– 0.3V to 6V
U
A
= 25 C. V
V
CONDITIONS
(Note 4)
(Note 5) V
(Note 6)
V
V
V
V
V
(Note 7)
V
Measured in Servo Loop; V
Reference to Nominal V
V
V
V
V
f
V
V
OSC
FB
FB
FB
FB
FB
IN
RUN/SS
RUN/SS
OUT
OUT
SYNC/MODE
OUT
FB
The
= 2.7V to 5V (Note 7)
= 1.6V, V
= 1.6V, V
= 0V, V
= 0V, V
= 1.20V
= V
= 550kHz
= 4.2V
= 1.8V, V
= 1.8V
REF
Ramping Up
= 0V
OUT
OUT
denotes the specifications which apply over the full operating
MODE
MODE
Ramping Down from 1.2V
10mV
MODE
MODE
= 3V unless otherwise specified.
Ramping Up
RUN/SS
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
, V
= 3V, V
SYNC/MODE
= 0V, V
= 3V, V
RUN/SS,
= 1.8V, V
RUN/SS
FB
SGND
RUN/SS
V
RUN/SS
RUN/SS
I
V
ITH
TH
FB
T
OUT
JMAX
10-LEAD PLASTIC MSOP
1
2
3
4
5
= 0.3V to 0.9V
SW
= 0V
= 1.8V
= 125 C,
= 3V
= 3V
MS10 PACKAGE
= 1.1V
TOP VIEW
JA
= 150 C/W
10
9
8
7
6
1.187
SW
PGND
BG
V
TG
MIN
1.03
0.65
460
150
2.5
0.7
OUT
84
55
63
40
2
U
0.0106
1.205
0.036
2.34
1.09
3.79
1.13
TYP
536
179
530
225
0.9
4.8
0.9
90
35
10
88
78
60
1
ORDER PART
LTC1700EMS
MS10 PART
MARKING
NUMBER
W
LTLC
1.223
0.080
0.065
MAX
1.30
1.25
620
210
630
100
1.8
2.6
1.2
45
14
50
92
9
6
UNITS
U
%/V
m
kHz
kHz
mV
mV
mV
mA
nA
%
%
%
V
V
A
A
A
A
V
V
A
V