LP5551SQX/NOPB National Semiconductor, LP5551SQX/NOPB Datasheet - Page 8

• Manufacturer Part Number: LP5551SQX/NOPB
• Description: IC ENERGY MGMNT SYSTEM 36-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LP5551SQX/NOPB

• Applications: Handheld/Mobile Devices
• Current - Supply: 431µA
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-LLP
• For Use With: LP5551SQEV - BOARD EVALUATION LP5551SQ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LP5551SQX

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AVS/DVS Switcher Characteristics
3.6V. Typical values and limits appearing in normal type apply for TJ = 25°C. Limits appearing in boldface type apply over the
entire junction temperature range for operation, -40 to +125°C. (Notes 2, 7, 8)
Symbol
ΔV
eN
PSRR
C
t
Symbol
V
V
ΔV
I
R
R
I
f
C
L
R
START-UP
Q
LIM
OSC
OUT
OUT
OUT
DSON(P)
DSON(N)
OUT
VFB
OUT
OUT
Accuracy Output Voltage
Range
Parameter
Line Regulation
Load Regulation
Line Transient Regulation
Load Transient Regulation
Output Noise Voltage
Power Supply Ripple Rejection
Ratio
Output Capacitance
Output Capacitor ESR
Start-Up Time from Shut-down C
Parameter
Programmable Output Voltage
Range
Line regulation
Load regulation
Quiescent current consumption I
P-FET resistance
N-FET resistance
Switch peak current limit
Internal oscillator frequency
Output Capacitance
Output Capacitor ESR
Inductor inductance
V
FB
pin resistance to ground
Conditions
3.6 V
I
V
3.6 V
T
V
25 mA
T
10 Hz
C
f = 1 kHz,
C
f = 10 kHz,
C
0 mA
Conditions
I
V
Programming Resolution = 4.7 mV
2.7V < V
I
V
I
V
V
2.7 V < V
PWM-mode
0 mA
0 mA
OUT
OUT
OUT
OUT
OUT
RISE,FALL
RISE,FALL
IN
DD_A, _D
DD_A, _D
DD_A, _D
DD_A, _D
DD_A, _D
OUT
OUT
OUT
OUT
= 3.6 V, 1 mA
= 125 mA
= 200 mA, V
= 10 mA
= 100-300 mA
= 0 mA
= 4.7 µF
= 4.7 µF
= 4.7 µF
= 4.7 µF, I
≤
≤
≤
≤
≤
≤
≤
V
V
I
I
I
, V
f
OUT
, V
DD_A, _D
, V
, V
, V
OUT
OUT
I
DD_A, _D
DD_A, _D
DD_A, _D
OUT
≤
= 10 us
= 100 ns
Unless otherwise noted, V
PVDD1,2
PVDD1,2
PVDD1,2
PVDD1,2
PVDD1,2
100 kHz,
≤
≤
≤
≤
8
250 mA
300 mA
300 mA
OUT
, V
225 mA,
, V
, V
OUT
<5.5 V
≤
PVDD1,2
= 3.6 V,
= 3.6 V
= 3.6 V
= VGS = 3.6 V
= VGS = 3.6 V
PVDD1,2
PVDD1,2
= 250 mA
I
OUT
= 1.2 V,
≤
<5.5 V,
≤
≤
250 mA
5.5 V,
3.9 V,
DD_A, _D
-0.081
-0.018
-4.1%
Min
Min
350
805
150
0.6
2
5
5
, V
PVDD1,2
0.120
0.011
1000
0.18
Typ
Typ
246
144
425
345
520
4.7
1.2
1.2
4.7
24
46
34
15
22
, RESETN, ENABLE =
0.306
0.018
4.3%
1125
Max
Max
500
690
635
750
500
440
1.2
20
Units
%/V
%/mA
mV
mV
mVRM
S
dB
µF
mΩ
µs
Units
V
V
%/V
%/mA
µA
mΩ
mΩ
mA
kHz
µF
mΩ
µH
kΩ