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Si9136

Features: · Up to 95% Efficiency· 3% Total Regulation (Each Controller)· 5.5-V to 30-V Input Voltage Range· 3.3-V, 5-V, and 12-V Outputs· 200-kHz Low-Noise Fixed Frequency Operation· Precision 3.3-V Reference Output· 30 mA Linear Regulator Output· High Efficiency Pulse Skipping Mode Operation atLi...

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SeekIC No. : 004490900 Detail

Si9136: Features: · Up to 95% Efficiency· 3% Total Regulation (Each Controller)· 5.5-V to 30-V Input Voltage Range· 3.3-V, 5-V, and 12-V Outputs· 200-kHz Low-Noise Fixed Frequency Operation· Precision 3.3-V...

Si9136 Data Sheet

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Part Number:
Si9136
Supply Ability:
5000

Price Break

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

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Upload time: 2025/12/25

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Product Details

Description



Features:

· Up to 95% Efficiency
· 3% Total Regulation (Each Controller)
· 5.5-V to 30-V Input Voltage Range
· 3.3-V, 5-V, and 12-V Outputs
· 200-kHz Low-Noise Fixed Frequency Operation
· Precision 3.3-V Reference Output
· 30 mA Linear Regulator Output
· High Efficiency Pulse Skipping Mode Operation at
Light Load
· Only Three Inductors Required'No Transformer
· LITTLE FOOT Optimized Output Drivers
· Internal Soft-Start
· Minimal External Control Components
· 28-Pin SSOP Package




Pinout

Connection Diagram




Specifications

VIN to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to +36 V
PGND to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±2 V
VL to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to +6.5 V
BST3, BST5, BSTFY to GND . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +36 V
VL Short to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
LX3 to BST3; LX5 to BST5; LXFY to BST . . . . . . . . . . . . . . . . . 6.5 V to 0.3 V
Inputs/Outputs to GND
(CS3, CS5, CSP, CSN) . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to (VL +0.3 V)
5 ON/OFF, 3 ON/OFF, 12 ON/OFF . . . . . . . . . . . . . . . . . . . . . 0.3 V to +5.5 V
DL3, DL5 to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to (VL +0.3 V)
DLFY to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input of Flyback
DH3 to LX3, DH5 to LX5,
DHFY to LXFY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to (BSTX +0.3 V)
Continuous Power Dissipation (TA = 90)a
28-Pin SSOPb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 572 mW
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 90
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . 40 to 125
Lead Temperature (Soldering, 10 Sec.) . . . . . . . . . . . . . . . . . . . . . . . . 300
Notes
a. Device mounted with all leads soldered or welded to PC board.
b. Derate 9.52 mW/ above 90.




Description

The Si9136 is a current-mode PWM and PSM converter controller, with two synchronous buck converters (3.3 V and 5 V) and a flyback (non-isolated buck-boost) converter (12 V).
Designed for portable devices, it offers a total five power outputs (three tightly regulated dc/dc converter outputs, a precision 3.3-V reference and a 5-V LDO output). It requires minimum external components and is capable of achieving conversion efficiencies approaching 95%.

The Si9136 is available in a 28-pin SSOP package and specified to operate over the extended commercial (0 to 90) temperature range.






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