ltc1928 Linear Technology Corporation, ltc1928 Datasheet - Page 2

• Manufacturer Part Number: ltc1928
• Description: Doubler Charge Pump With Low Noise Linear Regulator In Thinsot
• Manufacturer: Linear Technology Corporation

ABSOLUTE AXI U RATI GS
(Note 1)
V
V
CPO to Ground ........................................................ 10V
CN/SHDN to Ground ..................... – 0.3V to (V
V
I
Operating Temperature Range (Note 2) ...–40 C to 85 C
Maximum Junction Temperature ......................... 125 C
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
ELECTRICAL CHARACTERISTICS
LTC1928-5
PARAMETER
V
I
I
Regulated Output Voltage
V
Charge Pump Oscillator Frequency
CPO Output Resistance
V
V
V
V
V
CN/SHDN Input Threshold
CN/SHDN Input Current
Burst Mode is a trademark of Linear Technology Corporation.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC1928ES6-5 is guaranteed to meet performance
specifications from 0 C to 70 C. Specifications over the – 40 C to 85 C
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
The
V
2
OUT .........................................................................................
VIN
VIN
V
IN
OUT
OUT
OUT
OUT
OUT
OUT
IN
OUT
OUT
IN
OUT
Operating Voltage
Shutdown Current
Operating Current
= 3V, C
to Ground ..............................................– 0.3V to 5V
Temperature Coefficient
Dropout Voltage (Note 3)
Enable Time
Output Noise Voltage
Line Regulation
Load Regulation
Shutdown Resistance
Voltage ...........................................– 0.3V to 5.25V
Short-Circuit Duration ............................. Indefinite
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
FLY
= 0.47 F, C
W
OUT
, C
W W
CPO
, C
IN
= 4.7 F unless otherwise specified.
CONDITIONS
SHDN = 0V (Note 5)
I
I
I
V
V
I
R
I
I
V
I
I
CN/SHDN = 0V (Note 5)
V
CN/SHDN = 0V (Note 5)
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
IN
IN
IN
IN
LOAD
V
V
= 2.7V, I
= 4.4V, I
= 2.7V to 4.4V, I
= 2.7V to 4.4V (Note 5)
= 0mA, Burst Mode
= 1mA
> 500 A, V
= 10mA, V
= 10mA, 10Hz f 100kHz
= 10mA, 10Hz f 2.5MHz
= 1mA to 10mA
= 1mA to 30mA (Note 4)
IN
IN
= 2k
= 2.7V, Resistance Measured to Ground
= 4.4V, Resistance Measured to Ground
U
IN
OUT
OUT
+ 0.3V)
OUT
IN
= 10mA
= 10mA
40mA
= 2.7V to 4.4V
= 5V
OUT
TM
= 0
Operation
PACKAGE/ORDER I FOR ATIO
Consult factory for parts specified with wider operating temperature ranges.
Note 3: Dropout voltage is the minimum input/output voltage required to
maintain regulation at the specified output current. In dropout the output
voltage will be equal to: V
V
GND
OUT
V
IN
T
JMAX
6-LEAD PLASTIC SOT-23
1
2
3
= 125 C,
S6 PACKAGE
TOP VIEW
JA
= 230 C/ W
CPO
6
5
4
– V
CN/SHDN
CP
CPO
DROPOUT
0.15
MIN
480
2.7
4.9
– 1
U
(see Figure 2).
S6 PART MARKING
TYP
190
550
800
160
100
0.6
0.5
– 3
17
14
90
4
5
4
2
4
50
LTC1928ES6-5
ORDER PART
NUMBER
A
W
= 25 C.
LTKT
MAX
330
620
100
400
300
4.4
5.1
1.6
– 6
30
24
20
10
8
UNITS
U
V
ppm
V
RMS
kHz
mV
mV
mV
mV
ms
P-P
V
A
A
V
V
A