LTC1778EGN-1#PBF Linear Technology, LTC1778EGN-1#PBF Datasheet - Page 4
![IC SW REG CONTRLR STP-DN 16-SSOP](/photos/6/59/65965/161-16-ssop_sml.jpg)
LTC1778EGN-1#PBF
Manufacturer Part Number
LTC1778EGN-1#PBF
Description
IC SW REG CONTRLR STP-DN 16-SSOP
Manufacturer
Linear Technology
Type
Step-Down (Buck)r
Datasheet
1.LTC1778EGNPBF.pdf
(24 pages)
Specifications of LTC1778EGN-1#PBF
Internal Switch(s)
No
Synchronous Rectifier
Yes
Number Of Outputs
1
Current - Output
2A
Voltage - Input
4 ~ 36 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SSOP
Primary Input Voltage
36V
No. Of Outputs
1
Output Voltage
32.4V
Output Current
20A
No. Of Pins
16
Operating Temperature Range
-40°C To +85°C
Msl
MSL 1 - Unlimited
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Power - Output
-
Frequency - Switching
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
LTC1778/LTC1778-1
50mV/DIV
TYPICAL PERFOR A CE CHARACTERISTICS
4
5A/DIV
100
300
250
200
150
100
V
90
80
70
60
50
50
0.001
OUT
0
I
L
Efficiency vs Load Current
0
Frequency vs Load Current
CONTINUOUS MODE
DISCONTINUOUS
Transient Response
LOAD STEP 0A TO 10A
V
V
FCB = 0V
FIGURE 9 CIRCUIT
IN
OUT
= 15V
= 2.5V
2
0.01
DISCONTINUOUS
MODE
MODE
LOAD CURRENT (A)
LOAD CURRENT (A)
4
20µs/DIV
0.1
6
V
V
EXTV
FIGURE 9 CIRCUIT
IN
OUT
CONTINUOUS
MODE
= 10V
CC
= 2.5V
1
W
= 5V
8
1778 G03
1778 G26
U
1778 G01
10
10
50mV/DIV
5A/DIV
–0.2
–0.3
–0.4
–0.1
100
V
85
95
90
80
OUT
0
I
0
L
Load Regulation
0
Efficiency vs Input Voltage
FCB = 5V
FIGURE 9 CIRCUIT
Transient Response
(Discontinuous Mode)
LOAD STEP 1A TO 10A
V
V
FCB = INTV
FIGURE 9 CIRCUIT
I
IN
OUT
LOAD
= 15V
= 2.5V
5
2
= 10A
CC
I
LOAD CURRENT (A)
INPUT VOLTAGE (V)
LOAD
10
4
= 1A
20µs/DIV
15
FIGURE 9 CIRCUIT
6
20
8
25
1778 G06
1778 G04
1778 G02
10
30
RUN/SS
2V/DIV
1V/DIV
5A/DIV
V
300
280
260
240
220
200
2.5
2.0
1.0
OUT
1.5
0.5
I
0
L
5
0
Start-Up
Frequency vs Input Voltage
V
V
R
I
FCB = 0V
FIGURE 9 CIRCUIT
TH
FIGURE 9 CIRCUIT
IN
OUT
LOAD
CONTINUOUS
= 15V
Voltage vs Load Current
= 2.5V
= 0.25Ω
DISCONTINUOUS
MODE
10
MODE
INPUT VOLTAGE (V)
LOAD CURRENT (A)
5
I
OUT
I
50ms/DIV
OUT
15
= 10A
= 0A
10
20
1778 G05
1778 G07
1778 G19
1778fb
25
15