lt3473a Linear Technology Corporation, lt3473a Datasheet - Page 2

• Manufacturer Part Number: lt3473a
• Description: Micropower 1a Boost Converter With Schottky And Output Disconnect
• Manufacturer: Linear Technology Corporation

PACKAGE/ORDER I FOR ATIO
ABSOLUTE AXI U RATI GS
Consult LTC Marketing for parts specified with wider operating temperature ranges.
The
V
PARAMETER
Minimum Operation Voltage
Maximum Operation Voltage
Supply Current
SHDN Voltage to Enable Chip
SHDN Voltage to Disable Chip
SHDN Pin Bias Current
FB Voltage
FB Voltage Line Regulation
FB Pin Bias Current
CTRL to FB Offset
CTRL Pin Bias Current
FB Threshold for PGOOD
PGOOD Current Capacity
LT3473/LT3473A
V
SHDN Voltage .......................................................... 16V
SW Voltage ............................................................. 36V
PGOOD Voltage ...................................................... 36V
CAP Voltage ............................................................ 36V
OUT Voltage ........................................................... 36V
FB Voltage .............................................................. 10V
ELECTRICAL CHARACTERISTICS
2
IN
IN
= 3V, SHDN = 3V, CTRL = 2V, unless otherwise specified.
●
Voltage ............................................................. 16V
CTRL
8-LEAD (3mm × 3mm) PLASTIC DFN
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
CAP
OUT
MUST BE SOLDERED TO PCB (NOTE 3)
FB
EXPOSED PAD (PIN 9) IS GND
T
JMAX
1
2
3
4
= 125°C, θ
DD PACKAGE
TOP VIEW
9
W
JA
= 43°C/ W
8
7
6
5
SW
V
SHDN
PGOOD
IN
W W
U
DD PART MARKING
ORDER PART
W
LT3473EDD
CONDITIONS
SHDN = 3V, Not Switching
SHDN = 0V
3V < V
FB = 1.27V
CTRL = 0.5V
CTRL = 1V
CTRL = 2V
CTRL = 0.5V
NUMBER
U
LBJJ
IN
< 16V
U
(Note 1)
CTRL Voltage .......................................................... 10V
NB1, NB2 Voltage ................................................... 36V
NE1, NE2 Voltage ................................................... 36V
Maximum Junction Temperature ......................... 125°C
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range ................ – 65°C to 125°C
12-LEAD (4mm × 3mm) PLASTIC DFN
MUST BE SOLDERED TO PCB (NOTE 3)
CAP
OUT
NB1
NB2
NE1
NE2
EXPOSED PAD (PIN 13) IS GND
T
JMAX
1
2
3
4
5
6
= 125°C, θ
DE PACKAGE
TOP VIEW
13
JA
= 43°C/ W
12
11
10
●
●
●
●
9
8
7
SW
V
SHDN
PGOOD
CTRL
FB
IN
1.235
MIN
100
2.2
1.4
DE PART MARKING
1.25
0.01
1.15
0.40
TYP
100
0.1
20
50
2
5
ORDER PART
LT3473AEDE
A
NUMBER
= 25°C.
3473A
MAX
1.26
0.2
16
20
1
UNITS
%/V
3473f
mV
µA
µA
µA
nA
nA
µA
V
V
V
V
V
V
V