LTC2925CUF Linear Technology, LTC2925CUF Datasheet - Page 3

• Manufacturer Part Number: LTC2925CUF
• Description: IC POWER SUPPLY CONTROLLER 24QFN
• Manufacturer: Linear Technology

Specifications of LTC2925CUF

• Applications: Power Supply Controller
• Voltage - Supply: 2.9 V ~ 5.5 V
• Current - Supply: 1.5mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Input: -

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
SYMBOL
V
I
V
ΔV
ΔV
I
V
ΔV
V
I
ΔV
I
I
V
V
V
V
I
V
V
I
V
I
V
R
I
I
V
I
V
I
V
I
V
CC
GATE
ON(IN)
SENSEN
SENSEP
RAMP
ERROR(%)
FB(LEAK)
SCTMR(UP)
SCTMR(DN)
SDTMR(UP)
PGI(UP)
PGTMR(UP)
CC
CC(UVL)
ON(TH)
ON(FC)
OS
FAULT(OL)
SDx(OL)
STATUS(OL)
RAMPBUF(OL)
RAMPBUF(OH)
TRACKx
FB(CLAMP)
SCTMR(TH)
SDTMR(TH)
PGI(TH)
PGTMR(TH)
REMOTE
RS-SENSE(TH)
CC(UVL, HYST)
GATE
ON(HYST)
PARAMETER
Input Supply Range
Input Supply Current
Input Supply Undervoltage Lockout
Input Supply Undervoltage Lockout Hysteresis
External N-Channel Gate Drive (V
GATE Pin Current
ON Pin Threshold Voltage
ON Pin Hysteresis
ON Pin Fault Clear Threshold Voltage
ON Pin Input Current
Sense Resistor Overcurrent Voltage Threshold
(V
SENSEN Pin Input Current
SENSEP Pin Input Current
Ramp Buffer Offset (V
FAULT Output Low Voltage
SDx Output Low Voltage
STATUS Output Low Voltage
RAMP Pin Input Current
RAMPBUF Low Voltage
RAMPBUF High Voltage (V
I
I
TRACK Pin Voltage
I
V
REMOTE Feedback Switch Resistance
Short-Circuit Timer Pull-Up Current
Short-Circuit Timer Pull-Down Current
Short-Circuit Timer Threshold Voltage
Shutdown Timer Pull-Up Current
Shutdown Timer Threshold Voltage
Power Good Input Pull-Up Current
Power Good Input Threshold Voltage
Power Good Timer Pull-Up Current
Power Good Timer Threshold Voltage
FBx
ERROR(%)
FB
FB
SENSEP
Leakage Current
Clamp Voltage
to I
TRACKx
– V
= (I
SENSEN
FBx
Current Mismatch
– I
)
TRACKx
RAMPBUF
)/I
CC
TRACKx
– V
– V
GATE
RAMPBUF
RAMP
– V
)
CC
)
A
)
= 25°C. V
CONDITIONS
I
I
I
V
I
Gate On, V
Gate Off, V
Gate Off, V
Power Good Timeout
V
V
1V < V
0V < V
0V < V
0V < V
V
I
I
I
0V < RAMP < V
I
I
I
I
I
I
V
1μA < I
2V < V
V
V
V
V
V
FBx
FBx
RAMPBUF
GATE
FAULT
SDx
STATUS
RAMPBUF
RAMPBUF
TRACKx
TRACKx
TRACKx
TRACKx
CC
ON
ON
RAMPBUF
FB
SCTMR
SCTMR
SDTMR
PGI
PGTMR
The
= 1.5V, V
= 0, I
= –1mA, I
Rising
Rising
= 1.2V, V
= 1mA, V
= 0V
= –1μA
= 3mA
SENSEP
SENSEP
SENSEN
SENSEP
REMOTE
FB
l
CC
= 3mA
= –10μA
= –1mA
= –10μA
= –1mA
= 1V
= 1V
= 1V
= 1V
TRACKx
denotes the specifi cations which apply over the full operating
= –3mA
= 3mA
= –3mA
< 1mA
= V
GATE
GATE
GATE
= 5V unless otherwise noted.
CC
CC
CC
< V
< 1V
< V
CC
TRACKx
< V
< V
= 0V, No Faults
CC
= 5V, No Faults
= 5V, Short-Circuit or
= 5.5V
/2, I
= 5.5V
= 0, I
= 2.3
CC
CC
CC
, V
CC
RAMPBUF
CC
= –1mA,
RAMPBUF
= 5.5V
= 0A
= 0
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
1.214
0.78
0.78
MIN
–30
–35
2.9
2.3
0.3
1.6
1.1
1.1
0.8
1.1
–7
30
40
30
–1
–1
–7
–5
–8
5
7
5
1
1.232
10.5
1.23
1.23
1.23
TYP
–10
100
–50
–10
–10
–10
1.5
2.5
5.5
0.4
0.2
0.2
0.2
0.8
0.8
2.1
25
10
20
75
50
50
90
15
0
5
5
0
0
0
0
2
LTC2925
1.250
MAX
±100
0.82
0.82
–13
150
150
200
±10
–65
–13
–15
–14
5.5
2.7
0.5
0.4
0.4
0.4
2.5
1.4
1.4
1.4
1.4
15
13
50
60
70
10
10
30
±1
±5
±5
30
3
6
3
UNITS
2925fc
3
mA
mA
mV
mA
mV
mV
mV
mV
mV
mV
μA
μA
nA
μA
μA
μA
nA
μA
μA
μA
μA
μA
%
%
Ω
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V