Datasheet > ADP1148-3.3

ADP1148-3.3

更新时间： 2022-01-19 07:01:00

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16页	277K
描述
High Efficiency Synchronous Step-Down Switching Regulators(273.94 k)

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ADP1148-3.3 数据手册

ADP1148, ADP1148-3.3, ADP1148-5

ELECTRICAL CHARACTERISTICS

(–40؇C ≤ T_A≤ +85؇C, V_IN= 10 V, V_SHUTDOWN= 0 V, unless otherwise noted. See Figure 17.)

Parameter

Symbol

Conditions²

Min Typ Max

Units

FEEDBACK VOLTAGE

ADP1148 Only

V₁₀

V_IN= 9 V

1.20 1.25 1.30

REGULATED OUTPUT VOLTAGE

ADP1148-3.3

V_OUT

_LOAD= 700 mA

3.17 3.33 3.4

4.85 5.05 5.2

ADP1148-5

I_LOAD= 700 mA

INPUT DC SUPPLY CURRENT³

Normal Mode

I_Q

V_IN= 4 V < V_IN< 18 V

1.6

160

2.6

280

µA

Sleep Mode (ADP1148-3)

Sleep Mode (ADP1148-5)

Shutdown

_IN= 4 V < V_IN< 18 V

_IN= 6 V < V_IN< 18 V

_SHUTDOWN= 2.1 V,

4 V < V_IN< 12 V

CURRENT SENSE THRESHOLD

VOLTAGE⁴

V₈–V₇

ADP1148 Only

V₉= V_OUT/4 + 25 mV (Forced),

V₈= 5 V

V₉= V_OUT/4 – 25 mV (Forced),

V₈= 5 V

115

150

175

ADP1148-3.3

ADP1148-5.0

_SENSE= V_OUT+ 100 mV (Forced)

_SENSE= V_OUT– 100 mV (Forced)

_SENSE= V_OUT+ 100 mV (Forced)

150

115

175

V_SENSE= V_OUT– 100 mV (Forced)

150

SHUTDOWN PIN THRESHOLD

ADP1148-3.3, ADP1148-5

V₁₀

0.55 0.8

OFF-TIME

t_OFF

C_T= 390 pF, I_LOAD= 700 mA

6.2

µs

NOTES

¹All limits at temperature extremes are guaranteed via correlation using standard Quality Control method.

²T_Jis calculated from the ambient temperature T_Aand power dissipation P_Daccording to the following formulas:

ADP1148AR, ADP1148AR-3, ADP1148AR-5: T_J= T_A+ (P_DX 110°C/W)

ADP1148AN, ADP1148AN-3, ADP1148AN-5: T_J= T_A+ (P_DX 70°C/W)

³Dynamic supply current is higher due to the gate charge being delivered at the switching frequency. The allowable operating frequency may be limited by power

dissipation at high input voltages.

⁴The ADP1148 version is tested with external feedback resistors setting the nominal output voltage to 5 V.

Specifications subject to change without notice.

ABSOLUTE MAXIMUM RATINGS

ORDERING GUIDE

Input Supply Voltage (Pin 3) . . . . . . . . . . . . . –0.3 V to +20 V

Continuous Output Currents (Pins 1, 14) . . . . . . . . . . 50 mA

Sense Voltages (Pins 7, 8) . . . . . . . . . . . . . . . . –0.3 V to V_CC

Operating Temperature Range . . . . . . . . . . . . 0°C to +70°C

Extended Commercial Temperature Range . . –40°C to +85°C

Junction Temperature¹. . . . . . . . . . . . . . . . . . . . . . . . 150 °C

Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C

Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . 300°C

Output Package

Voltage Description

Package

Option

Model

ADP1148AN

ADP1148AR

ADJ

Plastic DIP

N-14

Small Outline Package SO-14

Plastic DIP N-14

Small Outline Package SO-14

Plastic DIP N-14

Small Outline Package SO-14

ADP1148AN-3.3 3.3 V

ADP1148AR-3.3 3.3 V

ADP1148AN-5

ADP1148AR-5

5 V

REV. 0

–3–

1 234 5 6 7...16

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与ADP1148-3.3相关器件

型号	品牌	描述	获取价格	数据表
ADP1148-5	ADI	High Efficiency Synchronous Step-Down Switching Regulators	获取价格
ADP1148AN	ADI	High Efficiency Synchronous Step-Down Switching Regulators	获取价格
ADP1148AN-3.3	ADI	Current-Mode SMPS Controller	获取价格
ADP1148AN-3.3	ROCHESTER	SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDIP14, PLASTIC, DIP-14	获取价格
ADP1148AN-33	ADI	High Efficiency Synchronous Step-Down Switching Regulators	获取价格
ADP1148AN-5	ADI	High Efficiency Synchronous Step-Down Switching Regulators	获取价格

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