LTC3735EUHF Linear Technology, LTC3735EUHF Datasheet - Page 4

• Manufacturer Part Number: LTC3735EUHF
• Description: IC CTRLR DC/DC 2PH HI EFF 38-QFN
• Manufacturer: Linear Technology

Specifications of LTC3735EUHF

• Applications: Controller, Intel Mobile CPU
• Number Of Outputs: 1
• Voltage - Output: 0.7 ~ 1.71 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 38-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Input: -

ELECTRICAL CHARACTERISTICS
LTC3735
temperature range, otherwise specifications are at T
SYMBOL
Oscillator
I
f
f
f
PGOOD Output
V
I
V
t
t
Operational Amplifier
I
V
CM
CMRR
I
A
GBP
SR
V
Note 1: Absolute Maximum Ratings are those values beyond which the
life of a device may be impaired.
Note 2: The LTC3735E is 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: T
dissipation P
4
FREQSET
NOM
LOW
HIGH
PGOOD
MASK
DELAY
B
CL
PGL
PG
OS
VOL
O(MAX)
LTC3735EG: T
LTC3735EUHF: T
J
is calculated from the ambient temperature T
D
PARAMETER
FREQSET Input Current
Nominal Frequency
Lowest Frequency
Highest Frequency
PGOOD Voltage Low
PGOOD Leakage Current
PGOOD Trip Thresholds
PGOOD Mask Timer
MCH_PG Delay Time
Input Bias Current
Input Offset Voltage Magnitude
Common Mode Input Voltage Range
Common Mode Rejection Ratio
Output Source Current
Open-Loop DC Gain
Gain-Bandwidth Product
Slew Rate
Maximum High Output Voltage
according to the following formula:
J
= T
J
= T
A
+ (P
A
+ (P
D
• 85°C/W)
D
• 34°C/W)
CONDITIONS
V
V
V
V
I
V
V
V
I
I
I
R
I
PGOOD
OUT
OUT
OUT
OUT
FREQSET
FREQSET
FREQSET
FREQSET
PGOOD
FB
OA
L
A
V
V
= 2k
FB
FB
and power
+
with Respect to Set Output Voltage
= 1mA
= 1mA
= 1mA
= 1mA
= V
Ramping Negative
Ramping Positive
A
= 2mA
= 5V
= 25°C. V
OA
= 0V
= 1.2V
= 0V
≥ 2.4V
–
1.2V, I
The
●
PVCC
OUT
denotes the specifications which apply over the full operating
= 1mA
= 5V, V
Note 4: The LTC3735 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% I
Considerations in the Applications Information section).
Note 8: The ATTEN
accuracy specified at VID code = 010110.
RUN/SS
= 5V unless otherwise noted.
ERR
specification is in addition to the output voltage
PV
MAX
CC
MIN
320
190
490
100
– 7
46
10
0
7
– 1.2 PV
(see Minimum On-Time
FB
CC
TYP
– 10
355
210
550
110
0.1
0.8
35
.
–2
15
15
70
30
11
2
5
– 0.9
PV
CC
MAX
390
240
610
– 13
120
200
0.3
±1
–1
5
13
– 1.4
ITH
to a
UNITS
cycles
V/mV
MHz
V/μs
3735f
kHz
kHz
kHz
mV
mA
μA
μA
nA
dB
μs
%
%
V
V
V