Position: Home  > All Categories> Integrated Circuits (ICs) > 33997

33997

Features: • Operating Voltage Range 6.0 V up to 26.5 V (40 V transient)• Step-Down Switching Regulator Output VDDH = 5.0 V @ 1400 mA (total)• Linear Regulator with External Pass Transistor VDDL = 3.3 V @ 400 mA• Low-Power Standby Linear Regulator VKAM = 3.3 V @ 10 mA•...

product image

33997 Picture
See larger image
SeekIC No. : 004228621 Detail

33997: Features: • Operating Voltage Range 6.0 V up to 26.5 V (40 V transient)• Step-Down Switching Regulator Output VDDH = 5.0 V @ 1400 mA (total)• Linear Regulator with External Pass Tr...

33997 Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
33997
Supply Ability:
5000

Price Break

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

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2024/12/21

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

• Operating Voltage Range 6.0 V up to 26.5 V (40 V transient)
• Step-Down Switching Regulator Output VDDH = 5.0 V @ 1400 mA (total)
• Linear Regulator with External Pass Transistor VDDL = 3.3 V @ 400 mA
• Low-Power Standby Linear Regulator VKAM = 3.3 V @ 10 mA
• Two 5.0 V @ 200 mA (typical) Sensor Supplies VREF Protected Against Short-to-Battery and Short-to-Ground with Retry Capability
• Undervoltage Shutdown on the VDDL, VDDH Outputs with Retry Capability
• Reset Signals
• Power-Up Delay
• Enable Pins for Main Supplies (EN) and Sensor Supplies (SNSEN)
• Power Sequencing for Advanced Microprocessor Architectures
• SOIC-24WB Package


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Value
Unit
Main Supply Voltage
Keep-Alive Supply Voltage
Switching Node
5.0 V Input Power
Sensor Supply


Keep-Alive Supply Voltage

Maximum Voltage at Logic I/O Pins
VPWR
KA_VPWR
VSW
VDDH
VREF1
VREF2
VKAM
EN
SNSEN
PWROK
VKAMOK
-0.3 to 45
-0.3 to 45
-0.5 to 45
-0.3 to 6.0
-0.3 to 18
-0.3 to 18
-0.3 to 6.0
-0.3 to 6.0
-0.3 to 6.0
-0.3 to 6.0
-0.3 to 6.0
V
V
V
V
V



V
V
Charge Pump Reservoir Capacitor Voltage
Error Amplifier Summing Node
Switching Regulator Output Feedback
VDDL Base Drive
VDDL Feedback
ESD Voltage
Human Body Model (all pins) (Note 1)
Machine Model (all pins) (Note 2)
CRES
VSUM
FBKB
DRVL
FBL
VESD1
VESD2
-0.3 to 18
-0.3 to 6.0
-0.3 to 6.0
-0.3 to 6.0
-0.3 to 6.0
±500
±100
V
V
V
V
V
V
Power Dissipation (TA = 25°C) (Note 3)
Thermal Resistance, Junction to Ambient (Note 4), (Note 5)
Thermal Resistance, Junction to Board (Note 6)
Operational Package Temperature [Ambient Temperature] (Note 7)
Operational Junction Temperature
Storage Temperature
Lead Soldering Temperature (Note 8)
PD
RJ-A
RJ-B
TA
TJ
TSTG
TS
800
60
20
-40 to 125
-40 to 150
-55 to 150
260
mW
°C/W
°C/W
°C
°C
°C
°C



Description

The 33997 is a medium-power, multi-output power supply integrated circuit that is capable of operating over a wide input voltage range, from 6.0 V up to 26.5 V with 40 V transient capability. It incorporates a sensorless current mode control step-down switching controller regulating directly to 5.0 V. The 3.3 V linear regulator uses an external pass transistor to reduce the 33997 power dissipation. The 33997 also provides a 3.3 V linear standby regulator and two 5.0 V sensor supply outputs protected by internal low-resistance LDMOS transistors.

There are two separate enable pins for the main and sensor supply outputs and standard supervisory functions such as resets with power-up reset delay.

The 33997 provides proper power supply sequencing for advanced microprocessor architectures such as the Motorola MPC5xx and 683xx microprocessor families.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
Optoelectronics
SFH7770
TLP423J
Relays
WIMA MKP4 0.22UF 630V
WIMA MKP4 4.7UF 630VDC
Cable Assemblies
CS1W-CN114
XW2Z-500T
Inductors, Coils, Chokes
DR127-330-R
SD53-100-R
Isolators
HCPL062N
HCPL316J
Soldering, Desoldering, Rework Products
TGK-900M-B
TGK-900M-1.6D
View more