LTC1928-5
W W U W
U W
U
ABSOLUTE AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
ORDER PART
VIN to Ground ..............................................–0.3V to 5V
VOUT Voltage...........................................–0.3V to 5.25V
CPO to Ground ........................................................ 10V
CN/SHDN to Ground ..................... –0.3V to (VIN + 0.3V)
VOUT Short-Circuit Duration............................. Indefinite
IOUT ......................................................................................... 40mA
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
NUMBER
TOP VIEW
V
1
2
3
6
5
4
CN/SHDN
CP
IN
LTC1928ES6-5
GND
V
CPO
OUT
S6 PART MARKING
LTKT
S6 PACKAGE
6-LEAD PLASTIC SOT-23
TJMAX = 125°C, θJA = 230°C/ W
Consult factory for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VIN = 3V, CFLY = 0.47µF, COUT, CCPO, CIN = 4.7µF unless otherwise specified.
PARAMETER
CONDITIONS
MIN
TYP
MAX
4.4
8
UNITS
V
V
Operating Voltage
Shutdown Current
Operating Current
●
●
●
●
2.7
IN
I
I
SHDN = 0V (Note 5)
4
µA
VIN
VIN
I
I
= 0mA, Burst ModeTM Operation
190
5
330
5.1
µA
OUT
OUT
Regulated Output Voltage
Temperature Coefficient
= 1mA
4.9
V
V
±50
550
ppm
kHz
OUT
Charge Pump Oscillator Frequency
CPO Output Resistance
I
> 500µA, V = 2.7V to 4.4V
●
480
620
OUT
IN
V
V
= 2.7V, I
= 4.4V, I
= 10mA
= 10mA
●
●
17
14
30
24
Ω
Ω
IN
IN
OUT
OUT
V
V
V
Dropout Voltage (Note 3)
Enable Time
I
= 10mA, V = 5V
OUT
●
100
mV
ms
OUT
OUT
OUT
OUT
R
= 2k
0.6
LOAD
Output Noise Voltage
I
I
= 10mA, 10Hz ≤ f ≤ 100kHz
= 10mA, 10Hz ≤ f ≤ 2.5MHz
90
800
µV
RMS
OUT
OUT
µV
P-P
V
V
Line Regulation
Load Regulation
V
= 2.7V to 4.4V, I = 0
OUT
●
●
4
20
10
mV
OUT
OUT
IN
I
I
= 1mA to 10mA
= 1mA to 30mA (Note 4)
2
4
mV
mV
OUT
OUT
V
Shutdown Resistance
CN/SHDN = 0V (Note 5)
OUT
V
V
= 2.7V, Resistance Measured to Ground
= 4.4V, Resistance Measured to Ground
●
●
160
100
400
300
Ω
Ω
IN
IN
CN/SHDN Input Threshold
CN/SHDN Input Current
V
= 2.7V to 4.4V (Note 5)
●
●
0.15
–1
0.5
–3
1.6
–6
V
IN
CN/SHDN = 0V (Note 5)
µA
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 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
(see Figure 2).
CPO
DROPOUT
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.
2
Linear [ Linear ]
