LTC3829EFE#PBF Linear Technology, LTC3829EFE#PBF Datasheet - Page 5

• Manufacturer Part Number: LTC3829EFE#PBF
• Description: IC BUCK SYNC ADJ 38TSSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3829EFE#PBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.6 ~ 5 V
• Frequency - Switching: 250kHz ~ 770kHz
• Voltage - Input: 4.5 ~ 38 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 38-TSSOP Exposed Pad, 38-eTSSOP, 38-HTSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -

elecTrical characTerisTics
SYMBOL
Nonlinear Fast Transit Mode
I
AVP (Active Voltage Positioning)
I
I
V
V
On-Chip Driver
TG R
TG R
BG R
BG R
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3829E is guaranteed to meet performance specifications
from 0°C to 85°C operating junction temperature. Specifications over
the –40°C to 125°C operating junction temperature range are assured by
design, characterization and correlation with statistical process controls.
The LTC3829I is guaranteed to meet performance specifications over the
full –40°C to 125°C operating junction temperature range.
Note 3: T
dissipation, P
junction temperature range, otherwise specifications are at T
FAST
SINK
SOURCE
AVP
AVP
LTC3829UHF: T
LTC3829FE: T
-V
UP
DOWN
UP
DOWN
O(MAX)
J
is calculated from the ambient temperature, T
D
, according to the following formula:
PARAMETER
Fast Transient Programmable Current V
Sink Current of AVP Pin
Source Current of AVP Pin
Maximum Voltage Drop V
Maximum AVP Voltage
TG Pull-Up R
TG Pull-Down R
BG Pull-Up R
BG Pull-Down R
J
= T
J
= T
A
+ (P
A
+ (P
D
DS(ON)
DS(ON)
D
• 25°C/W)
• 34°C/W)
DS(ON)
DS(ON)
AVP
to V
O
CONDITIONS
SENSE
SENSE
SENSE
TG High
TG Low
BG High
BG Low
A
IFAST
, and power
= 400mV
+
+
+
= 1.2V
= 1.2V
= 1.2V
The
A
= 25°C. V
l
denotes the specifications which apply over the full operating
Note 4: The LTC3829 is tested in a feedback loop that servos V
specified voltage and measures the resultant V
Note 5: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency. See Applications Information.
Note 6: Rise and fall times are measured using 10% and 90% levels. Delay
times are measured using 50% levels.
Note 7: The minimum on-time condition corresponds to the on inductor
peak-to-peak ripple current ≥40% of I
Considerations in the Applications Information section).
Note 8: Guaranteed by design.
IN
= 15V, V
RUN
l
= 5V, unless otherwise noted. (Note 2)
MIN
2.5
9
MAX
(see Minimum On-Time
TYP
250
180
2.6
1.5
1.1
10
2
4
FB
.
LTC3829
MAX
11
ITH
to a
UNITS

3829f
mA
mV
µA
µA
Ω
Ω
Ω
Ω
V