Datasheet

LTC3204-3.3/LTC3204-5/
LTC3204B-3.3/LTC3204B-5
2
3204fa
ABSOLUTE AXI U RATI GS
W
W W
U
FOR ATIO
PACKAGE/ORDER
I
U UW
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Input Voltage Range (LTC3204-3.3/LTC3204B-3.3) ● 1.8 4.5 V
(LTC3204-5/LTC3204B-5) ● 2.7 5.5 V
V
OUT
Output Voltage Range 1.8V < V
IN
< 4.5V, I
OUT
< 40mA
1.9V < V
IN
< 4.5V, I
OUT
< 50mA (LTC3204-3.3/LTC3204B-3.3) ● 3.168 3.3 3.432 V
2.7V < V
IN
< 5.5V, I
OUT
< 65mA
3.1V < V
IN
< 5.5V, I
OUT
< 150mA (LTC3204-5/LTC3204B-5) ● 4.8 5 5.2 V
I
IN
No Load Input Current I
OUT
= 0 (LTC3204-3.3) 48 µA
I
OUT
= 0 (LTC3204-5) 60 µA
I
OUT
= 0 (LTC3204B-3.3) 1.25 mA
I
OUT
= 0 (LTC3204B-5) 3.6 mA
I

S

H

D

N
Shutdown Current

S

H

D

N = 0V, V
OUT
= 0V 1 µA
I
BURST
Burst Mode Threshold (LTC3204-3.3) 15 mA
(LTC3204-5) 20 mA
V
R
Output Ripple I
OUT
= 100mA 20 mV
P-P
η Efficiency V
IN
= 3V, I
OUT
= 100mA (LTC3204-5/LTC3204B-5) 82 %
f
OSC
Switching Frequency ● 0.6 1.2 1.8 MHz
V
IH

S

H

D

N Input Threshold ● 1.3 V
V
IL

S

H

D

N Input Threshold ● 0.4 V
I
IH

S

H

D

N Input Current ● –1 1 µA
I
IL

S

H

D

N Input Current

S

H

D

N = 0V ● –1 1 µA
R
OL
Effective Open-Loop Output V
IN
= 1.8V, V
OUT
= 3V (LTC3204-3.3/LTC3204B-3.3) 7 Ω
Resistance (Note 3) V
IN
= 2.7V, V
OUT
= 4.5V (LTC3204-5/LTC3204B-5) 6 Ω
I
LIM
Output Current Limit V
OUT
= OV 300 mA
T
SS
Soft-Start Time From the Rising Edge of

S

H

D

N to 90% of V
OUT
0.75 ms
V
IN
to GND ................................................... –0.3V to 6V
V
OUT
to GND .............................................–0.3V to 5.5V

S

H

D

N to GND ...............................................–0.3V to 6V
V
OUT
Short-Circuit Duration ............................. Indefinite
Operating Temperature Range (Note 2) ...–40°C to 85°C
Storage Temperature Range .................. –65°C to 125°C
Maximum Junction Temperature .......................... 125°C
(Note 1)
The ● denotes the specifications which apply over the full operating
temperature range. Specifications are at T
A
= 25°C, V
IN
= 2.4V (LTC3204-3.3/LTC3204B-3.3) or 3.6V (LTC3204-5/LTC3204B-5),
S

H

D

N = V
IN
, C
FLY
= 2.2µF, C
IN
= 2.2µF, C
OUT
= 2.2µF unless otherwise noted.
Note 1: Absolute Maximum Ratings are those beyond which the life of a
device may be impaired.
Note 2: The LTC3204-3.3/LTC3204-5/LTC3204B-3.3/LTC3204B-5 are
guaranteed to meet performance specifications from 0°C to 70°C.
Specifications over the –40°C to 85°C operating temperature range are
assured by design, characterization and correlation with statistical process
controls.
Note 3: R
OL
≡ (2V
IN
– V
OUT
)/I
OUT
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ORDER PART
NUMBER
DC PART
MARKING
LBJV
LBNK
LBVF
LBVG
LTC3204EDC-3.3
LTC3204EDC-5
LTC3204BEDC-3.3
LTC3204BEDC-5
T
JMAX
= 125°C, θ
JA
= 80°C/W
EXPOSED PAD IS GND (PIN 7)
MUST BE SOLDERED TO PCB
TOP VIEW
DC PACKAGE
6-LEAD (2mm × 2mm) PLASTIC DFN
4
5
6
7
3
2
1GND
V
IN
V
OUT
SHDN
C
–
C
+