LP3907SQ-JXQX NSC [National Semiconductor], LP3907SQ-JXQX Datasheet - Page 7

• Manufacturer Part Number: LP3907SQ-JXQX
• Description: Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C Compatible Interface
• Manufacturer: NSC [National Semiconductor]

V
V
ΔV
I
V
PSRR
θn
I
14)
T
C
V
Eff
I
f
I
I
R
R
T
C
C
SC
Q
SHDN
OSC
PEAK
Q
ON
ON
IN
OUT
IN
OUT
OUT
DSON
DSON
IN
O
Low Drop Out Regulators, LDO1 and LDO2
Unless otherwise noted, V
25°C. Limits appearing in boldface type apply over the entire junction temperature range for operation, −40°C to +125°C. (Notes
2, 7, 8, 9, 10, 11, 12)
Buck Converters SW1, SW2
Unless otherwise noted, V
type apply for T
C to +125°C. (Notes 2, 7, 8, 9, 11, 18)
(Note 14)
(Notes 11,
OUT
Symbol
– V
Symbol
Accuracy Output Voltage Accuracy (Default V
(P)
(N)
OUT
Output Voltage Accuracy
Line Regulation
Load Regulation
Efficiency
Shutdown Supply Current
Internal Oscillator Frequency
Buck1 Peak Switching Current Limit
Buck2 Peak Switching Current Limit
Quiescent Current “On”
Pin-Pin Resistance PFET
Pin-Pin Resistance NFET
Turn On Time
Input Capacitor
Output Capacitor
Operational Voltage Range
Line Regulation
Load Regulation
Short Circuit Current Limit
Dropout Voltage
Power Supply Ripple Rejection
Supply Output Noise
Quiescent Current “On”
Quiescent Current “On”
Quiescent Current “Off”
Turn On Time
Output Capacitor
J
= 25°C. Limits appearing in boldface type apply over the entire junction temperature range for operation, −40°
IN
IN
= 3.6, C
Parameter
= 3.6, C
Parameter
IN
IN
= 10 µF, C
= 1.0µF, C
OUT
OUT
OUT
= 10 µF, L
= 0.47µF. Typical values and limits appearing in normal type apply for T
) Load current = 1 mA
Default V
2.8< V
I
100mA < I
Load Current = 250mA
EN is de-asserted
No load PFM Mode
Start up from shut-down
Capacitance for stability
Capacitance for stability
O
VINLDO1 and VINLDO2 PMOS
pins (Note 15)
V
(Note 12), Load Current = mA
V
Load Current = 1mA to I
LDO1-2, V
Load Current = 50mA
(Note 10)
F = 10kHz, Load Current = I
10Hz < F < 100KHz
I
I
EN is de-asserted(Note 16)
Start up from shut-down
Capacitance for stability
0°C
−40°C
ESR
=10mA
OUT
OUT
IN
IN
= (V
= 3.6V,
≤
IN
= 0mA
= I
OUT
T
< 5.5
7
≤
OUT
MAX
OUT
J
O
T
= 2.2 µH ceramic. Typical values and limits appearing in normal
Conditions
≤
< I
Conditions
OUT
J
125°C
+ 0.3V) to 5.0V,
≤
MAX
125°C
= 0V
MAX
MAX
1.74
0.33
0.68
Min
Min
1.7
−3
10
10
−3
5
0.0013
0.089
0.01
0.03
0.47
Typ
200
180
500
Typ
500
300
2.1
1.5
1.0
1.0
96
33
30
45
80
40
60
0.011
Max
Max
0.15
200
500
5.5
+3
3
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µVrms
%/mA
%/mA
Units
Units
MHz
%/V
%/V
mΩ
mΩ
mΩ
mA
mV
µA
µA
µF
µF
J
dB
µA
µA
µA
µF
µF
µs
µs
%
%
%
A
V
=