LTC3770EUH#TR Linear Technology, LTC3770EUH#TR Datasheet - Page 4

• Manufacturer Part Number: LTC3770EUH#TR
• Manufacturer: Linear Technology

Specifications of LTC3770EUH#TR

• Lead Free Status / RoHS Status: Not Compliant

ELECTRICAL CHARACTERISTICS
LTC3770
temperature range, otherwise specifi cations are T
SYMBOL
Internal V
V
ΔV
Phased-Locked Loop
R
I
PGOOD Output
ΔV
ΔV
ΔV
V
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: T
dissipation P
Note 3: The 3770 is tested in a feedback loop that adjusts V
achieve a specifi ed error amplifi er output voltage (I
V
TYPICAL PERFORMANCE CHARACTERISTICS
4
PLLFLTR
INTVCC
PGL
REFOUT
PLLIN
LDO(LOADREG)
FBH
FBL
FB(HYS)
LTC3770EG: T
LTC3770EUH: T
–100
–200
300
200
100
0
0
= V
Current Sense Threshold
vs I
J
CC
is calculated from the ambient temperature T
REFIN
TH
Regulator
D
0.5
as follows:
Voltage
.
J
PARAMETER
Internal V
Internal V
PLLIN Input Resistance
Phase Detector Output Current
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
PGOOD Low Voltage
= T
J
Sink Capability
Source Capability
1.0
= T
I
A
TH
A
+ (P
VOLTAGE (V)
+ (P
1.5
D
CC
CC
D
• 130°C/W)
V
Voltage
Load Regulation
• 34°C/W)
RNG
2.0
=
2.5
1.4V
1V
2V
0.7V
0.5V
3770 G01
3.0
TH
). For these tests,
10000
A
1000
100
and power
A
10
= 25°C. V
FB
1
On-Time vs I
to
CONDITIONS
6V < V
I
f
f
V
V
V
I
CC
PLLIN
PLLIN
PGOOD
FB
FB
FB
= 0mA to 20mA
Rising
Falling
Returning
The
< f
> f
IN
IN
= 5mA
0
0
< 30V
l
= 15V unless otherwise noted.
I
ON
denotes specifi cations which apply over the full operating
ON
CURRENT (μA)
Current
10
Note 4: The LTC3770E is guaranteed to meet performance specifi cations
from 0°C to 85°C. Specifi cations over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 5: The minimum off-time condition is specifi ed for large peak-to-peak
inductor ripple current (see Minimum Off-Time Considerations in
the Applications Information section).
V
VON
= 0V
3770 G02
100
1200
1000
800
400
600
l
200
0
0
On-Time vs V
I
ION
MIN
4.7
–7
7
= 60μA
1
V
–0.1
0.15
ON
TYP
–15
–10
1.5
50
15
10
5
2
ON
VOLTAGE (V)
Voltage
3
MAX
–13
5.3
0.4
±2
13
3
4
3770 G03
UNITS
3770fc
kΩ
μA
μA
5
%
%
%
%
V
V