LTC3203_15 Datasheet, PDF (3/16 Pages) Linear Technology – 500mA Output Current Low Noise Dual Mode Step-Up Charge Pumps

LTC3203/LTC3203-1
LTC3203B/LTC3203B-1
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full specified temperature
range, otherwise specifications are at 25°C. V_IN = 3.6V, C1 = C2 = 2.2µF unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
LTC3203-1/LTC3203B-1
V_OUT
4.5V Output Voltage Range
V_IN > 3.1V, I_OUT < 500mA
(V_SEL = 0V) (Note 5)
V_IN > 2.9V, I_OUT < 350mA
V_IN > 2.7V, I_OUT < 250mA
5V Output Voltage Range
(V_SEL = V_IN) (Note 5)
V_IN > 3.1V, I_OUT < 500mA
V_IN > 3.1V, I_OUT < 400mA
V_IN > 2.7V, I_OUT < 150mA
4.32
4.5
4.68
V
● 4.32
4.5
4.68
V
● 4.32
4.5
4.68
V
4.8
5
5.2
V
● 4.8
5
5.2
V
● 4.8
5
5.2
V
∆V_OUT/∆I_OUT
I_CC
V_VSELH
V_VSELL
I_VSELH
V_OUT Load Regulation
V_IN = 3.6V, I_OUT = 100mA to 500mA, 2x Mode,
V_IN = 4V, I_OUT = 100mA to 500mA, 1.5x Mode
0.37
mV/mA
0.27
mV/mA
No Load Operating Current
(LTC3203-1)
I_OUT = 0mA, 2x Mode
I_OUT = 0mA, 1.5x Mode
120
300
µA
100
300
µA
No Load Operating Current
(LTC3203B-1)
I_OUT = 0mA, 2x Mode
I_OUT = 0mA, 1.5x Mode
9
mA
7
mA
V_SEL Input High Voltage
● 1.3
V
V_SEL Input Low Voltage
●
0.4
V
V_SEL Input High Current
● –1
1
µA
I_VSELL
V_SEL Input Low Current
LTC3203/LTC3203B
● –1
1
µA
V_FB
Feedback Servo Voltage
I_OUT = 0mA, 2.7V ≤ V_IN ≤ 5.5V
● 0.88
0.91
0.94
V
I_FB
∆V_FB/∆I_OUT
FB Input Current
Load Regulation
(Refer to FB Pin)
V_FB = 0.95V
● –50
I_OUT = 100mA to 500mA, 2x Mode, V_IN = 3.6V
0.08
I_OUT = 100mA to 500mA, 1.5x Mode, V_IN = 4V
0.06
50
nA
mV/mA
mV/mA
I_CC
No Load Operating Current
I_OUT = 0mA, 2x Mode, 5V V_OUT Setting
(LTC3203)
I_OUT = 0mA, 1.5x Mode, 5V V_OUT Setting
120
300
µA
100
300
µA
No Load Operating Current
(LTC3203B)
I_OUT = 0mA, 2x Mode, 5V V_OUT Setting
I_OUT = 0mA, 1.5x Mode, 5V V_OUT Setting
9
mA
7
mA
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: Based on long-term current density limitations.
Note 3: The LTC3203/LTC3203-1/LTC3203B/LTC3203B-1 are guaranteed
to meet performance specifications from 0°C to 85°C. Specifications over
the –40°C to 85°C operating temperature range are assured by design,
characterization and correlation with statistical process controls.
Note 4: Output not in regulation (based on wafer sort):
R_OL ≡ (2 • V_IN – V_OUT)/I_OUT, 2x Mode
R_OL ≡ (1.5 • V_IN – V_OUT)/I_OUT, 1.5x Mode
Note 5: Proper conversion mode, 1.5x or 2x, has to be chosen based on
R_OL to ensure output regulation.
32031fa
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