isl9305 Intersil Corporation, isl9305 Datasheet - Page 6

• Manufacturer Part Number: isl9305
• Description: 3mhz Dual Step-down Converters And Dual Low-input Ldos With I 2c Compatible Interface
• Manufacturer: Intersil Corporation

Electrical Specifications
the typical specifications are measured at the following conditions: T
VINLDOx = VOLDOx + 0.5V to 5.5V with VINLDOx always no higher than VINDCD1, L
C
NOTE:
Output Voltage Accuracy
Line Regulation
Maximum Output Current
P-Channel MOSFET ON-resistance
N-Channel MOSFET ON-resistance
P-Channel MOSFET Peak Current Limit
SW Maximum Duty Cycle
SW Leakage Current
PWM Switching Frequency
SW Minimum ON-time
Bleeding Resistor
PG
Output Low Voltage
Rising Delay Time
Falling Delay Time
PG Pin Leakage Current
PG Low Rising Threshold
PG Low Falling Threshold
PG High Rising Threshold
PG High Falling Threshold
LDO1 AND LDO2
VINLDO1, VINLDO2 Supply Voltage
VINLDO1, VINLDO2 Undervoltage
Lock-out Threshold
Internal Peak Current Limit
Dropout Voltage
Power Supply Rejection Ratio
Output Voltage Noise
6. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
7
= 1µF, I
OUT
PARAMETER
= 0A for DCD1, DCD2, LDO1 and LDO2 (see Figure 1 on page 1 for more details). (Continued)
6
Unless otherwise noted, all parameter limits are guaranteed over the recommended operating conditions and
SYMBOL
V
UVLO
I
PK
f
S
V
V
V
VFB = 0.75V
PG = VINDCD1 = VINDCD2 = 3.6V
Percentage of nominal regulation voltage
No higher than VINDCD1
V
1mA load
V
V
V
Sinking 1mA, FB1 = FB2 = 0.7V
Based on 1ms programmed nominal delay
time
Based on 1ms programmed nonimal delay
time
Percentage of nominal regulation voltage
Percentage of nominal regulation voltage
Percentage of nominal regulation voltage
VINDCD1 = 2.3V, Rising
VINDCD1 = 2.3V, Falling
I
I
I
I
T
V
to 100kHz
O
O
O
O
A
IN
IN
IN
IN
IN
IN
IN
IN
= 300mA @ 1kHz, V
= 300mA, VO ≤ 2.1V
= 300mA, 2.1V < VO ≤ 2.8V
= 300mA, VO > 2.8V
= +25°C
= V
= V
= 3.6V, I
= 2.3V, I
= 3.6V, I
= 2.3V, I
= 5.5V
= 4.2V, I
O
O
+ 0.5V to 5.5V (minimal 2.3V),
+ 0.5V to 5.5V (minimal 2.3V)
ISL9305
O
O
O
O
O
= 10mA, T
= 200mA
= 200mA
= 200mA
= 200mA
TEST CONDITIONS
A
= +25°C, VINDCD1 = 3.6V, VINDCD2 = 3.3V. For LDO1 and LDO2,
IN
A
= 3.6V, VO = 2.6V,
= +25°C, BW = 10Hz
1
= L
2
= 1.5µH, C
1
(Note 6)
1.075
1.33
= 10µF, C
MIN
800
350
2.6
0.6
1.5
-3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4
0.005
0.005
0.14
0.24
0.11
0.18
1.41
1.37
= C
100
115
112
109
425
125
100
TYP
0.1
1.3
3.0
1.1
70
30
91
87
80
55
45
-
-
-
-
5
= 4.7µF, C
(Note 6)
0.40
0.34
0.25
1.46
MAX
540
250
200
170
0.2
0.2
1.6
3.4
1.8
0.1
5.5
+3
1
-
-
-
-
-
-
-
-
-
-
-
-
-
November 8, 2010
2
= C
3
FN7605.0
µV
= C
UNIT
MHz
%/V
mA
mA
mV
mV
ms
mV
µA
µA
dB
ns
µs
%
%
%
%
%
%
RMS
Ω
Ω
Ω
Ω
A
Ω
V
V
V
V
6
=