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PS0021 Datasheet(PDF) 4 Page - Power IC Ltd.

Part # PS0021
Description  High Efficiency PFM Step-up DC/DC Converter
PDF  12 Pages
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Manufacturer  PICSEMI [Power IC Ltd.]
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Logo PICSEMI - Power IC Ltd.

PS0021 Datasheet(HTML) 4 Page - Power IC Ltd.

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PS0021
ELECTRICAL CHARACTERISTICS
July 2007
www.picsemi.com
© 2007 Power IC. All Rights Reserved.
4
( VBATT = 1.2V, VOUT = 3.3V, VOUT = VOUT (NOM), SHDN = OUT, RL = ∞, TA = 0°C to +85°C, unless otherwise
noted. Typical values are at T = +25°C.)
A
Unit
Parameter
Symbol
Conditions
Min
Typ
Max
Operating Input
Voltage
V
( Note 2 )
5.5
V
IN
Output Voltage
variation
V
3.2
3.3
3.4
V
OUT
Minimum Startup
Input Voltage
RL= 30kΩ
0.9
V
Hold on Voltage
1 mA load
0.7
V
Switch leakage
5
nA
N-Channel
Measured from SW pin voltage and
1.4
Ω
RDS(ON)
On-Resistance
inductor current during SW on time
Maximum
oscillating freq
V
forced = V
(NOM) * 0.95
80
100
120
KHz
OUT
OUT
FOSC
Duty ratio
D
V
forced = V
(NOM) * 0.95
65
75
85
%
MAX
OUT
OUT
Efficiency
Eff
85
%
5
µA
Quiescent
Current into OUT
V = V
IN
OUT +0.5V measurement of the IC
input current(V
pin) (Notes 3, 4)
OUT
(no switching)
Quiescent
Current into OUT
V
forced = V
(NOM) * 0.95
25
µA
OUT
OUT
Shutdown
Current into OUT
(Notes 4) En= 0V
1
µA
1.2
VIL
SHDN Voltage
Threshold
VIH
0.4
mV
SHDN Input Bias
V
= 5.5V
1.1
nA
SHDN
current
Low Battery Detector
LBI voltage threshold
V
forced = V
(NOM)*1.05
665
670
675
mV
OUT
OUT
LBI input hysteresis
V
forced = V
(NOM)*1.05
15
18
22
mV
OUT
OUT
LBI input current
V
forced = V
(NOM)*1.05
0.02
nA
OUT
OUT
LBO output low voltage
Force 20mA into LBO
0.45
0.50
0.6
V
LBO output leakage current
LBO= 6.0V
0.1
µA



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