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ST735T

Features: CONVERTS +4.0V TO + 6.2V INPUT TO -5V OUTPUT (735S) OR +3.5V TO + 9.0V TO A NEGATIVE ADJUSTABLE OUTPUT (735T) 1W GUARANTEED OUTPUT POWER 72% TYPICAL EFFICIENCY0.8mA QUIESCENT CURRENT1A SHUTDOWN MODE 300KHZ FIXED FREQUENCY OSCILLATOR CURRENT MODE PWM CONVERTER LOW NOISE AND JITTER SOFT S...

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SeekIC No. : 004506793 Detail

ST735T: Features: CONVERTS +4.0V TO + 6.2V INPUT TO -5V OUTPUT (735S) OR +3.5V TO + 9.0V TO A NEGATIVE ADJUSTABLE OUTPUT (735T) 1W GUARANTEED OUTPUT POWER 72% TYPICAL EFFICIENCY0.8mA QUIESCENT CURRENT1A SH...

ST735T Data Sheet

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Part Number:
ST735T
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/23

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Product Details

Description



Features:

CONVERTS +4.0V TO + 6.2V INPUT TO -5V
    OUTPUT (735S) OR +3.5V TO + 9.0V TO A
    NEGATIVE ADJUSTABLE OUTPUT (735T)
1W GUARANTEED OUTPUT POWER
72% TYPICAL EFFICIENCY
0.8mA QUIESCENT CURRENT
1A SHUTDOWN MODE
300KHZ FIXED FREQUENCY OSCILLATOR
CURRENT MODE PWM CONVERTER
LOW NOISE AND JITTER
SOFT START
SIMPLE APPLICATION CIRCUIT
 UNDERVOLTAGE LOCKOUT (735S)


Pinout

Connection Diagram


Specifications

Symbol
Parameter
Value
Unit
VIN
 DC Input Voltage (VIN to GND) for ST735S
-0.3 to +7
V
VIN
 DC Input Voltage (VIN to GND) for ST735T (Note 1)
-0.3 to +11
V
SHDN
 Shutdown Voltage (SHDN to GND)
-0.3 to VIN+0.3
V
VLX
 Switch Voltage (Lx to VIN)
-12.5 to +0.3
V
VFB
 Feedback Voltage (VOUT to GND)
-11 to +0.3
V
VOUT
 Output Voltage (VOUT to GND)
-11 to +0.3
V
 Other Input Voltage (SS, CC to GND)
-0.3 to V++0.3
V
ILX
 Peack Switch Current
2
A
Ptot
 Power Dissipation at Tj = 70°C DIP-8
725
mW
SO-8
470
Tstg
 Storage Temperature Range
-55 to +150
°C
Top
 Operating Junction Temperature Range
-40 to +125
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
Note 1: The input to output differential voltage is limited to VIN+|VOUT|<12.7V


Description

The ST735S/ST735T is a Bi-CMOS, inverting switch mode DC-DC regulator with internal Power MOSFET that generates a fixed -5V (S version) or a negative adjustable (T version) output voltage from a 4V (3.5V for the 735T) to 6.2V input voltage (9V for the 735T); is guaranteed an output current of 200mA for inputs greater than 4.5V. The quiescent current for this device is typically of 0.8mA and, in shutdown mode it is reduced to 1A.

These power-conserving features, along with high efficiency and applications circuits, thaT lend itself to minaturization, make the ST735S/ST735T excellent in a broad range of on-card, HDD and portable equipment applications. These device employ a high performance current mode pulse with modulation (PWM) control scheme to provide tight output voltage regulation and low noise. The fixed frequency oscillator is factory trimmed to 300KHz, allowing for easy noise filtering. The ST735T in production is tested to guarantee an output accuracy within ±5% over all specified conditions.




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