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STI8039

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Product serial number
Vin Range (V):
9 to 14
Iout (A):
0.8
Switching Frquency (Hz):
1M
Vout (V):
14/ 19
Boost Rds(on) (Ω):
0.1
22kHz Single Ripple (mV):
30
Functions:
Boost + Linear Regulator/ I2C Interface
Package:
QFN3x3-16
Status:
Developing
Quantity
-
+
Stock:
0
FEATURES
Parameters
GENERAL DESCRIPTION
APPLICATIONS
TYPICAL APPILCATION

. Low noise output to avoid sensitivity of Can Tuner and DISH’s LNA dropping down

. Noise < +/-50mV@350MHz BWL

. Noise < +/-35mV@20MHz BWL

. Single chip solution on 700mVpp  22KHz  EXTM with 10µs Trise/Tfall for less Transferring noise

. LNB Voltages (2  levels: 14V and  19V) compatible with common standards, Push-pull output stage minimizes 14→ 19V and 19V→ 14V output transition times;

. External 22KHz EXTM input;

. Integrated DC/DC BOOST converter and high efficiency (typ.  87%) with integrated Power Mos-FET

. 1.0MHz Switch Frequency BOOST

. Integrated low Noise Linear Regulator

. 5.0V,  3.3V,  2.5V,  1.8V , logic  compatible

. Internal Short, OCP,OTP, protection

. ESOP8L package

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Intended for analog and digital satellite receivers/sat-TV, sat-OC cards, the STI8039 is a monolithic voltage regulator and interface IC, packaged in ESOP8L, specifically designed to provide the 14/19V power supply with high efficiency and the 22kHz TONE signaling to the LNB down-converter in the antenna dish or to the multi-switch box.STI8036 consists of a BOOST converter and a low-noise linear regulator along with the circuitry required for TONE injection and pin controllable interface.  The device makes the total LNB supply design simple, efficient and compact with low external component count

The external modulation input (TONE pin) can accept a tome modulated DiSEqC command and transfer it symmetrically to the output to meet DiSEqC 1.x protocol

. LNB  Power  supply for DVB-S/S2/ABS

. Digital STB

. Satellite TV cards

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