Datasheet

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125
REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP
DC/DC CONVERTERS
SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at C
I
= 10 µF, C
1F
= C
2F
= 2.2 µF, C
O
= 22 µF, T
C
= –40°C to 85°C, V
I
= 2 V,
V
FB
= V
O
and V
(ENABLE)
= V
I
(unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
I( i )
Minimum start u
p
voltage
I
O
= 0 1.8
V
V
I(min)
Minim
u
m
start
-u
p
v
oltage
I
O
= I
O
(max) 2
V
V
(UVLO)
Input undervoltage lockout threshold T
C
= 25°C 1.6 1.8 V
I
O(MAX)
Maximum continuous
out
p
ut current
TPS60120, TPS60121,
TPS60124, TPS60125
200 mA
O(MAX)
out ut
current
TPS60122, TPS60123 100 mA
TPS60120,
TPS60121
1.8 V < V
I
< 2 V,
0 < I
O
< I
O(MAX)
/2,
T
C
= 0°C to 70°C
3.17 3.43
TPS60121,
TPS60122,
TPS60123
2 V < V
I
< 3.3 V,
0 < I
O
< I
O(MAX)
3.17 3.43
V
O
Out
p
ut voltage
TPS60123
3.3 V < V
I
< 3.6 V,
0 < I
O
< I
O(MAX)
3.17 3.47
V
V
O
O
u
tp
u
t
v
oltage
TPS60124
1.8 V < V
I
< 2 V,
0 < I
O
< I
O(MAX)
/2,
T
C
= 0°C to 70°C
2.88 3.12
V
TPS60124,
TPS60125
2 V < V
I
< 3.3 V,
0 < I
O
< I
O(MAX)
2.88 3.12
3.3 V < V
I
< 3.6 V,
0 < I
O
< I
O(MAX)
2.88 3.3
I
lkg(OUT)
Output leakage current V
I
= 2.4 V, V
(ENABLE)
= 0 V 1 µA
I
Q
Quiescent current (no-load input current) V
I
= 2.4 V 55 90 µA
I
Q(SDN)
Shutdown supply current V
I
= 2.4 V, V
(ENABLE)
= 0 V 0.05 1 µA
f
OSC(INT)
Internal switching frequency V
I
= 2.4 V 210 320 450 kHz
V
IL
Enable input voltage low V
I
= 1.8 V 0.3 x V
I
V
V
IH
Enable input voltage high V
I
= 3.6 V 0.7 x V
I
V
I
lkg(ENABLE)
Enable input leakage current V
(ENABLE)
= V
GND
or V
I
0.01 0.1 µA
Output load regulation
V
I
= 2.4 V,
1 mA < I
O
< I
O(MAX)
T
C
= 25°C
0.003% /mA
Output line regulation
2 V < V
I
< 3.3 V,
I
O
= 100 mA,
T
C
= 25°C
0.3% /V
Short circuit current limit
V
I
< 2.4 V, V
O
= 0 V,
T
C
= 25°C
115 mA
V
(LBITRIP)
Low battery trip voltage
TPS60120, TPS60122,
TPS60124
V
I
= 1.8 V to 2.2 V,
Hysteresis 0.8% for rising
LBI, T
C
= 0°C to 70°C
1.15 1.21 1.27 V
I
I(LBI)
LBI input current
TPS60120, TPS60122,
TPS60124
V
(LBI)
= 1.3 V 100 nA
V
O(LBO)
LBO output voltage low
(see Note 2)
TPS60120, TPS60122,
TPS60124
V
(LBI)
= 0 V,
I
(LBO,SINK)
= 1 mA
0.4 V
I
lkg(LBO)
LBO leakage current
TPS60120, TPS60122,
TPS60124
V
(LBI)
= 1.3 V,
V
(LBO)
= 3.3 V
0.01 0.1 µA
NOTE 2: During start-up the LBO and PG output signal is invalid for the first 500 µs.