LTC3553 Linear Technology Corporation, LTC3553 Datasheet - Page 5

• Manufacturer Part Number: LTC3553
• Description: Micropower USB Power Manager
• Manufacturer: Linear Technology Corporation

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LDO REGULATOR ELECTRICAL CHARACTERISTICS
The
LDO_ON = V
SYMBOL
V
V
V
I
I
I
V
t
R
PUSHBUTTON INTERFACE ELECTRICAL CHARACTERISTICS
SYMBOL
Pushbutton Pin (ON)
V
V
I
R
Logic Input Pins (BUCK_ON, LDO_ON, SEQ)
Status Output Pin (PBSTAT)
I
V
The
V
LDO_FB
LDO_OC
LDO_SC
LDO_SS
PBSTAT
ON
INLDO
OUT
LDO_FB
DROP
CC_PB
ON_TH
PBSTAT
LDO_PD
PB_PU
BAT
l
l
UVLO V
= 3.8V, unless otherwise noted.
denotes specifi cations that apply over the full operating temperature range, otherwise specifi cations are at T
denotes specifi cations that apply over the full operating temperature range, otherwise specifi cations are at T
PARAMETER
Input Voltage Range
Regulated Feedback Voltage
V
V
Feedback Pin Input Current
Available Output Current
Short-Circuit Output Current
Dropout Voltage (Note 13)
Soft-Start Time
Output Pull-Down Resistance in Shutdown LDO_ON = 0V
OUT
OUT
LDO_FB
LDO_FB
PARAMETER
Pushbutton Operating Supply Range
ON Threshold Rising
ON Threshold Falling
ON Input Current
Pushbutton Pull-Up Resistance
Input High Voltage
Input Low Voltage
Input Current
PBSTAT Output High Leakage Current
PBSTAT Output Low Voltage
= V
Undervoltage Lockout
INLDO
Line Regulation
Load Regulation
= 3.8V, STBY = 0V, unless otherwise noted.
CONDITIONS
(Note 9)
V
V
I
I
I
(Note 7)
I
I
I
CONDITIONS
(Notes 4 , 9)
V
Pull-Up to V
V
I
LDO
LDO
LDO
LDO
LDO
LDO
PBSTAT
OUT
OUT
ON
PBSTAT
= V
= 1mA, STBY High or Low (Note 10)
= 1mA, V
= 1mA to 150mA (Note 10)
= 150mA, V
= 150mA, V
= 75mA, V
Falling
Rising
CC
= 3mA
= 3V
(Note 4)
CC
INLDO
(Note 4)
INLDO
INLDO
INLDO
= 1.65V to 5.5V (Note 10)
= 1.8V
= 3.8V
= 2.5V
l
l
l
l
MIN
1.65
780
–50
150
2.5
MIN
200
2.7
0.4
1.2
–1
–1
–1
0.025
TYP
800
300
160
220
180
2.6
2.8
0.2
TYP
0.7
400
10
0.1
LTC3553
A
A
= 25°C.
= 25°C.
MAX
MAX
260
350
280
820
650
5.5
2.9
5.5
1.2
0.4
0.4
50
1
1
1
mV/mA
UNITS
UNITS
mV/V
5
3553f
mV
mA
mA
mV
mV
mV
kΩ
ms
kΩ
nA
μA
μA
μA
V
V
V
V
V
V
V
V
V