LTC1266 Linear Technology, LTC1266 Datasheet - Page 2

• Manufacturer Part Number: LTC1266
• Description: Synchronous Regulator Controller for N- or P-Channel MOSFETs
• Manufacturer: Linear Technology

A
Input Supply Voltage (Pins 2, 5) ............... 20V to – 0.3V
Continuous Output Current (Pins 1, 16) .............. 50mA
Sense Voltages (Pins 8, 9)........................ 13V to – 0.3V
PINV, BINH, SHDN, LB
LB
Operating Ambient Temperature Range ...... 0 C to 70 C
Extended Commercial
Junction Temperature (Note 1) ............................ 125 C
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................. 300 C
ELECTRICAL C
LTC1266
LTC1266-3.3/LTC1266-5
SYMBOL PARAMETER
V
I
V
I
I
2
FB
Q1
Q2
V
FB
OUT
V
SENSE 1
BSOLUTE
OUT
(Pins 3, 4, 11, 13) ................................. 20V to – 0.3V
OUT
Temperature Range ........................... – 40 C to 85 C
Output Current ........................................... 12mA
Feedback Voltage
Feedback Current (LTC1266 Only)
Regulated Output Voltage
Output Ripple (Burst Mode Operation) I
Output Voltage Line Regulation
Output Voltage Load Regulation
V
PWR V
Current Sense Threshold
(Burst Mode Operation Enabled)
LTC1266ACS
LTC1266CS
LTC1266CS-3.3
LTC1266CS-5
LTC1266-3.3
LTC1266-3.3
LTC1266-5
LTC1266-5
IN
Normal Mode
Sleep Mode
Shutdown
Normal Mode
Sleep Mode
Shutdown
LTC1266
LTC1266-3.3
LTC1266-5
Pin DC Supply Current (Note 2)
IN
DC Supply Current (Note 2)
W
A
HARA TERISTICS
IN
XI
W
U
C
W
R
CONDITIONS
V
Topside Switch = N-Ch
V
Topside Switch = N-Ch, V
I
5mA < I
3.5V < V
3.5V < V
V
3.5V < PWR V
V
V
3.5V < PWR V
A
LOAD
LOAD
IN
IN
SHDN
SHDN
BINH
V
V
Burst Mode Operation Enabled, V
Burst Mode Operation Inhibited, V
Burst Mode Operation Enabled, V
Burst Mode Operation Inhibited, V
V
V
V
V
V
V
PINV
PINV
SENSE –
SENSE –
SENSE –
SENSE –
SENSE –
SENSE –
TI
= 9V, I
= 9V, I
= 150mA
= 50mA
= 0V
= 2.1V, 3.5V < V
= 2.1V, 3.5V < PWR V
U
= 0V, Topside Switch = P-Ch, V
= V
LOAD
IN
IN
G
LOAD
LOAD
= 3.3V, V
= 3.3V, V
= V
= V
= V
= V
< 18V
< 18V
PWR
< 2A, R
OUT
OUT
OUT
OUT
S
IN
IN
, Topside Switch = N-Ch, V
T
= 700mA, V
= 700mA, V
< 18V
< 18V
A
+ 100mV (Forced)
– 100mV (Forced)
+ 100mV (Forced)
– 100mV (Forced)
= 25 C, V
FB
FB
SENSE
= V
= V
IN
PWR
< 18V
OUT
OUT
= 0.05
PINV
PINV
Consult factory for Industrial and Military grade parts.
PACKAGE/ORDER I FOR ATIO
IN
/2.64 + 25mV (Forced)
/2.64 – 25mV (Forced)
IN
= 14V
< 18V
PWR V
= V
= V
SENSE
= 10V, V
TDRIVE
PINV
BINH
BINH
BINH
PWR
PWR
BINH
BINH
V
I
C
TH
IN
IN
T
–
T
*FIXED OUTPUT VERSIONS
JMAX
IN
,
,
= 0V
= 0V
= 2V
= 2V
1
2
3
4
5
6
7
8
16-LEAD PLASTIC SO
= 7V to 12V
SHDN
IN
= 125 C,
= 7V to 12V
TOP VIEW
S PACKAGE
= V
JA
BINH
= 110 C/ W
= 0V unless otherwise noted.
16
15
14
13
12
11
10
9
BDRIVE
PGND
LB
LB
SGND
SHDN
V
SENSE
FB
OUT
IN
(NC*)
+
1.210
MIN
3.23
4.90
–40
–40
135
135
135
U
LTC1266CS
LTC1266CS-3.3
LTC1266CS-5
LTC1266ACS
1.275
1.25
3.33
5.05
TYP
170
155
155
155
ORDER PART
0.2
2.1
50
40
15
60
25
25
20
25
25
25
0
0
1
1
NUMBER
W
1.290
MAX
3.43
5.20
100
250
175
175
175
3.0
40
40
65
25
40
50
40
1
5
5
UNITS
mV
U
mV
mV
mV
mV
mV
mV
mA
mV
mV
mV
mV
mV
mV
P-P
V
V
A
V
V
A
A
A
A
A