LTC1957-1EMS8#TR Linear Technology, LTC1957-1EMS8#TR Datasheet - Page 2

• Manufacturer Part Number: LTC1957-1EMS8#TR
• Description: IC RF PWR CONTRLLR SINGLE 8-MSOP
• Manufacturer: Linear Technology

Specifications of LTC1957-1EMS8#TR

• Rf Type: Cellular, GSM, GPRS, PCS, Wireless Modem, TDMA
• Frequency: 850MHz ~ 2GHz
• Features: Single Output
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: LTC1957-1EMS8TR

ABSOLUTE AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
LTC1957-1/LTC1957-2
V
V
PCTL Voltage ............................... – 0.3V to (V
RF Voltage ........................................ (V
I
I
SHDN, TXEN, BSEL
Voltage to GND ............................ – 0.3V to (V
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
PARAMETER
V
I
I
I
I
V
V
V
V
V
V
V
V
V
V
V
2
VCC
VCC
VIN
VIN
VIN
VCC
IN
IN
PCA/B
PCA/B
PCA/B
PCA/B
PCA/B
PCA/B
PCA/B
PCA/B
PCA/B
PCA/B
IN
PCA
Operating Voltage
to V
Shutdown Current
Autozero Current
Operating Current
Current Limit
to GND ............................................... – 0.3V to 6.5V
, Continuous ....................................................... 1A
, 12.5% Duty Cycle .......................................... 2.5A
, V
SHDN
V
Dropout Voltage
Voltage Clamp
Output Current
Enable Time
Bandwidth
Load Capacitance
Slew Rate
Droop
TXEN Start Voltage
CC
GND
OL
V
PCB
RF
IN
T
Resistance
JMAX
8-LEAD PLASTIC MSOP
1
2
3
4
Voltage ..................................... – 0.3V to 3V
= 125 C,
MS8 PACKAGE
TOP VIEW
W
JA
= 160 C/W
8
7
6
5
V
V
TXEN
PCTL
CC
PCA
W W
CONDITIONS
SHDN = LO, TXEN = LO, BSEL = LO
SHDN = HI, TXEN = LO
SHDN = HI, TXEN = HI, I
SHDN = LO, TXEN = LO
TXEN = HI, Open Loop, PCTL = –100mV
I
R
V
V
V
C
(Note 6)
V
V
Open Loop, TXEN Low to High, C
LOAD
PCA/B
PCA/B
PCTL
LOAD
PCTL
IN
LOAD
U
= 2.7V, V
= 5.5mA, V
= 2V Step, C
= 2V Step, C
= 100pF, R
= 400 , PCTL = 2V, External Gain = 0.417
= 2.4V, V
= 2.6V, V
MS8 PART MARKING
LTC1957-1EMS8
PCTL
ORDER PART
W
IN
IN
IN
IN
LOAD
= 2V Step
NUMBER
= 2.7V
= 3V
LOAD
LOAD
– 2.2V) to 7V
= 2.7V
U
LTRH
A
= 400 (Note 8)
IN
IN
= 100pF (Note 5)
= 100pF (Note 3)
VPCA
= 25 C. V
+ 0.3V)
+ 0.3V)
= I
The
U
VPCB
LOAD
(Note 1)
IN
= 0mA, V
denotes specifications which apply over the full operating
= 3.6V, SHDN = TXEN = HI, unless otherwise noted.
= 100pF (Note 9)
I
Operating Temperature Range (Note 2) . – 30 C to 85 C
Storage Temperature Range ................ – 65 C to 150 C
Maximum Junction Temperature ........................ 125 C
Lead Temperature (Soldering, 10 sec)................ 300 C
VPCA/B
SHDN
BSEL
PCA/B
GND
V
RF
IN
T
JMAX
, 25% Duty Cycle ...................................... 20mA
10-LEAD PLASTIC MSOP
1
2
3
4
5
= HI
= 125 C,
MS10 PACKAGE
TOP VIEW
JA
= 160 C/W
10
9
8
7
6
V
V
V
TXEN
PCTL
CC
PCA
PCB
MIN
280
500
2.7
2.7
5.5
6.0
1.2
MS10 PART MARKING
2.85
TYP
440
370
600
1.1
2.2
2.2
90
10
1
0
9
LTC1957-2EMS
1
ORDER PART
NUMBER
LTRJ
V
IN
MAX
150
650
500
100
700
1.6
1.7
0.1
3.0
– 0.28
6
1
UNITS
V/ms
V/ s
m
kHz
mA
mA
mA
mA
mV
ns
pF
V
A
A
V
V
V